PRIUS
| WARNING | When performing any inspection or service procedure on this vehicle, ensure following service precautions are followed to prevent personal injury or death due to the extremely high voltage. |
The following service precautions must be followed
- Ensure ignition is off and ignition key is removed from ignition before performing any inspection or service procedure in engine compartment, as engine may automatically start and shut off when ignition is on and READY light is illuminated. READY light is displayed just above the shift lever position indicator on instrument cluster at center of instrument panel.
- Read all service and warning labels in engine compartment before performing any procedures in engine compartment.
- All high-voltage wiring harness connectors contain Orange connectors. DO NOT touch any wiring harness that contains Orange connectors.
- High-voltage battery and other high-voltage components may be identified by HIGH VOLTAGE caution labels on them. DO NOT touch these components.
- If necessary to inspect or service high-voltage system, ensure ignition is off. Remove service plug and wait at least 5 minutes to ensure high voltage is fully discharged before touching any high-voltage wiring harness, connectors or components. Service plug is located on service plug assembly at driver's side front corner of trunk compartment, near high-voltage battery. For illustration of service plug location, See «SERVICE PRECAUTIONS»(ref-133193-S06271043082002021900000) in ON-VEHICLE ADJUSTMENTS - 4-CYLINDER article. Ensure service plug is stored in a location in which no one may install service plug while technician is working on the vehicle.
- If necessary to touch any high-voltage wiring harness, connectors or components, ensure service plug is removed and battery voltage or less exists at electrical connector. Use Toyota insulated gloves when touching any high-voltage wiring harness, connectors or components. Ensure insulated gloves are dry and in good condition and that no holes exist in insulated gloves. Test by applying air pressure to insulated glove before touching any high-voltage wiring harness, connectors or components.
- DO NOT wear any metal objects while working on vehicle which may accidently drop and cause a short circuit.
- If any high-voltage wiring harness connector is disconnected, ensure terminal on wiring harness connector is wrapped with tape to prevent wiring harness connector from contacting any surface.
- If servicing high-voltage system, place sign on roof of vehicle to indicate to other technicians that high-voltage system is being serviced.
QUICK-SERVICE
| WARNING | On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
ENGINE COMPRESSION
Check engine compression with engine at cranking speed with battery fully charged, engine at normal operating temperature, electrical connector disconnected at ignition coil if ignition coil is not removed for access to spark plugs, all spark plugs removed and throttle wide open.
| WARNING | On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
Note. On Prius, when checking engine compression, connect Toyota hand-held tester to data link connector No. 3 located below driver's side of instrument panel and follow scan tool instructions to select cranking mode. This will automatically set cranking speed to 250 RPM and set throttle at wide open position.
VALVE CLEARANCE
| WARNING | On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
IGNITION COIL RESISTANCE (4-CYLINDER)
| Application | Primary | Secondary |
|---|
| Camry, Camry Solara, Celica, Corolla, ECHO, Highlander & MR2 | (1) | (1) |
| Prius (2) | (1) | (1) |
| RAV4 & Tacoma | (1) | (1) |
| (1) Ignition coil resistance is not available from manufacturer. (2) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
| (1) | Ignition coil resistance is not available from manufacturer. |
| (2) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
IGNITION COIL RESISTANCE - Ohms (4-CYLINDER)
IGNITION COIL RESISTANCE (V6)
| Application | Primary | Secondary |
|---|
| Avalon & Camry | (1) | (1) |
| Camry Solara |
| Aisan Ign. Coil (2) |
| Cold (3) | .70-.94 | 10,800-14,900 |
| Hot (4) | .85-1.10 | 13,100-17,500 |
| Diamond Ign. Coil (2) |
| Cold (3) | .70-.94 | 6800-11,700 |
| Hot (4) | .85-1.10 | 8600-13,700 |
| Highlander & Sienna | (1) | (1) |
| Tacoma, Tundra & 4Runner |
| Cold (3) | .67-1.05 | 9300-16,000 |
| Hot (4) | .85-1.23 | 11,700-18,800 |
| (1) Ignition coil resistance is not available from manufacturer. (2) This is manufacturer of ignition coil. (3) Cold is with temperature of 14-122°F (-10-50°C). (4) Hot is with temperature of 122-212°F (50-100°C). |
| (1) | Ignition coil resistance is not available from manufacturer. |
| (2) | This is manufacturer of ignition coil. |
| (3) | Cold is with temperature of 14-122°F (-10-50°C). |
| (4) | Hot is with temperature of 122-212°F (50-100°C). |
IGNITION COIL RESISTANCE - Ohms (V6)
IGNITION COIL RESISTANCE (V8)
| Application | Primary | Secondary |
|---|
| Land Cruiser, Sequoia & Tundra | (1) | (1) |
| (1) Ignition coil resistance is not available from manufacturer. |
| (1) | Ignition coil resistance is not available from manufacturer. |
IGNITION COIL RESISTANCE - Ohms (V8)
CAMSHAFT POSITION SENSOR
| Application | Ohms |
|---|
| Avalon |
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| Camry |
| 2.4L 4-Cyl. & 3.0L V6 |
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| Camry Solara |
| 2.4L 4-Cyl. |
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| 3.0L V6 |
| Denso Sensor (3) |
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| Wabash Sensor (3) |
| Cold (1) | 1690-2560 |
| Hot (2) | 2145-3010 |
| Celica & Corolla |
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| ECHO |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| Highlander, Land Cruiser & MR2 |
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| Prius (4) |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| RAV4, Sequoia, Sienna, Tacoma, Tundra & 4Runner |
| Cold (1) | 835-1400 |
| Hot (2) | 1060-1645 |
| (1) Cold is with temperature of 14-122°F (-10-50°C). (2) Hot is with temperature of 122-212°F (50-100°C). (3) This is manufacturer of camshaft position sensor. (4) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
| (3) | This is manufacturer of camshaft position sensor. |
| (4) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
CAMSHAFT POSITION SENSOR RESISTANCE
CRANKSHAFT POSITION SENSOR
| Application | Ohms |
|---|
| Avalon |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| Camry & Camry Solara |
| 2.4L 4-Cyl. |
| Cold (1) | 985-1600 |
| Hot (2) | 1265-1890 |
| 3.0L V6 |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| Celica & Corolla |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| ECHO |
| Cold (1) | 985-1600 |
| Hot (2) | 1265-1890 |
| Highlander |
| 2.4L 4-Cyl. |
| Cold (1) | 985-1600 |
| Hot (2) | 1265-1890 |
| 3.0L V6 |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| Land Cruiser & MR2 |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| Prius (3) |
| Cold (1) | 985-1600 |
| Hot (2) | 1265-1890 |
| RAV4 |
| Cold (1) | 985-1600 |
| Hot (2) | 1265-1890 |
| Sequoia, Sienna, Tacoma, Tundra & 4Runner |
| Cold (1) | 1630-2740 |
| Hot (2) | 2065-3225 |
| (1) Cold is with temperature of 14-122°F (-10-50°C). (2) Hot is with temperature of 122-212°F (50-100°C). (3) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
| (3) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
CRANKSHAFT POSITION SENSOR RESISTANCE
HIGH TENSION WIRE RESISTANCE
| Application | Maximum Ohms |
|---|
| Avalon, Camry, Camry Solara 2.4L 4-Cylinder, Celica, Corolla, ECHO, Highlander, Land Cruiser, MR2, Prius, RAV4, Sequoia, Sienna, Tacoma 2.4L 4-Cyl. & 2.7L 4-Cyl., & Tundra 4.7L V8 | (1) |
| Camry Solara 3.0L V6, Tacoma 3.4L V6, Tundra 3.4L V6 & 4Runner | 25,000 Per Wire |
| (1) Distributorless Ignition System (DIS) is used with ignition coil mounted on the spark plug. No high tension wires are used. |
| (1) | Distributorless Ignition System (DIS) is used with ignition coil mounted on the spark plug. No high tension wires are used. |
HIGH TENSION WIRE RESISTANCE
SPARK PLUG TYPE (4-CYLINDER)
| Application | NGK No. | Denso No. |
|---|
| Camry & Camry Solara | IFR6A11 | SK20R11 |
| Celica |
| 1.8L (1ZZ-FE) | IFR5A11 | SK16R11 |
| 1.8L (2ZZ-GE) | IFR6A11 | SK20R11 |
| Corolla | IFR5A11 | SK16R11 |
| ECHO | BKR5EYA | K16R-U |
| Highlander | IFR6A11 | SK20R11 |
| MR2 | IFR5A11 | SK16R11 |
| Prius (1) | IFR5A11 | SK16R11 |
| RAV4 | IFR6A11 | SK20R11 |
| Tacoma | BKR5EYA-11 | K16R-U11 |
| (1) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS. |
| (1) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS. |
SPARK PLUG TYPE (4-CYLINDER)
SPARK PLUG TYPE (V6)
| Application | NGK No. | Denso No. |
|---|
| Avalon & Camry | IFR6A11 | SK20R11 |
| Camry Solara | BKR6EKPB11 | PK20TR11 |
| Highlander & Sienna | IFR6A11 | SK20R11 |
| Tacoma, Tundra & 4Runner | BKR5EKB-11 | K16TR11 |
SPARK PLUG TYPE (V8)
| Application | NGK No. | Denso No. |
|---|
| Land Cruiser | IFR6A11 | SK20R11 |
| Sequoia & Tundra | BKR6EYA | K20R-U |
FIRING ORDER & TIMING MARKS
| Application | Firing Order |
|---|
| 4-Cylinder (1) |
| Camry & Camry Solara | (2) (3) 1-3-4-2 |
| Celica, Corolla, ECHO, Highlander, MR2, Prius, RAV4 & Tacoma | (2) (3) 1-3-4-2 |
| V6 (4) |
| Avalon | (5) 1-2-3-4-5-6 |
| Camry | (6) 1-2-3-4-5-6 |
| Camry Solara | (5) 1-2-3-4-5-6 |
| Highlander | (5) 1-2-3-4-5 |
| Sienna | (5) 1-2-3-4-5-6 |
| Tacoma, Tundra & 4Runner | (7) 1-2-3-4-5-6 |
| V8 (8) |
| Land Cruiser, Sequoia & Tundra | (2) (Scheme 4) 1-8-4-3-6-5-7-2 |
| (1) Cylinder No. 1 is located at timing chain end of engine. Cylinder No. 4 is located at flywheel end of engine. (2) System uses a Distributorless Ignition System (DIS) with ignition coil on spark plug for each cylinder. (3) (Scheme 2) (4) Cylinder No. 1 is front cylinder on right side of engine when viewed from flywheel end of engine. Cylinder No. 2 is front cylinder on left side of engine when viewed from flywheel end of engine. Cylinders No. 1, 3 and 5 are on right side of engine. Cylinders No. 2, 4 and 6 are on left side of engine. (5) System uses a Distributorless Ignition System (DIS) with 3 ignition coils. Two cylinders fire simultaneously using same ignition coil. (Scheme 3) (6) (Scheme 5) (7) System uses a Distributorless Ignition System (DIS) with 3 ignition coils. Two cylinders fire simultaneously using same ignition coil. (Scheme 6) (8) Cylinder No. 1 is front cylinder on left side of engine when viewed from flywheel end of engine. Cylinder No. 2 is front cylinder on right side of engine when viewed from flywheel end of engine. Cylinders No. 1, 3, 5 and 7 are on left side of engine. Cylinders No. 2, 4, 6 and 8 on right side of engine. |
| (1) | Cylinder No. 1 is located at timing chain end of engine. Cylinder No. 4 is located at flywheel end of engine. |
| (2) | System uses a Distributorless Ignition System (DIS) with ignition coil on spark plug for each cylinder. |
| (4) | Cylinder No. 1 is front cylinder on right side of engine when viewed from flywheel end of engine. Cylinder No. 2 is front cylinder on left side of engine when viewed from flywheel end of engine. Cylinders No. 1, 3 and 5 are on right side of engine. Cylinders No. 2, 4 and 6 are on left side of engine. |
| (5) | System uses a Distributorless Ignition System (DIS) with 3 ignition coils. Two cylinders fire simultaneously using same ignition coil. (Scheme 3) |
| (7) | System uses a Distributorless Ignition System (DIS) with 3 ignition coils. Two cylinders fire simultaneously using same ignition coil. (Scheme 6) |
| (8) | Cylinder No. 1 is front cylinder on left side of engine when viewed from flywheel end of engine. Cylinder No. 2 is front cylinder on right side of engine when viewed from flywheel end of engine. Cylinders No. 1, 3, 5 and 7 are on left side of engine. Cylinders No. 2, 4, 6 and 8 on right side of engine. |
Scheme 2
Scheme 2: Cylinder Numbering & Firing Order (4-Cylinder)
Scheme 3
Scheme 3: Cylinder Numbering & Firing Order (Avalon 3.0L, Highlander 3.0L & Sienna 3.0L)
Scheme 4
Scheme 4: Cylinder Numbering & Firing Order (4.7L)
Scheme 5
Scheme 5: Spark Plug Wire Routing (Camry 3.0L)
Scheme 6
Scheme 6: Spark Plug Wire Routing (Tacoma 3.4L, Tundra 3.4L & 4Runner 3.4L)
IGNITION TIMING
Note. All models, timing marks are located on crankshaft pulley and front cover.
| WARNING | On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
IGNITION TIMING (4-CYLINDER)
| Application | Base Timing | ECM Controlled Timing |
|---|
| Camry & Camry Solara | (2) 8-12 | (3) 5-15 |
| Celica |
| 1.8L (1ZZ-FE) | (2) 10-18 | (4) |
| 1.8L (2ZZ-GE) | (2) 8-12 | (4) |
| Corolla | (5) 8-12 | (6) 6-15 |
| ECHO | (2) 8-12 | (4) |
| Highlander | (2) 8-12 | (3) 5-15 |
| MR2 | (2) 8-12 | (3) 6-15 |
| Prius (7) | (2) 7-15 | (4) |
| RAV4 | (2) 8-12 | (3) 5-15 |
| Tacoma | (2) 3-7 | (3) 4-17 |
| (1) Check with engine at normal operating temperature, transaxle/transmission in Neutral (except Prius, in Park on Prius), parking brake applied, and A/C and all accessories off. (2) With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals No. 4 (CG) and 13 (TC) on data link connector No. 3. (3) With jumper wire removed from data link connector No. 3. (4) Information is not available from manufacturer. (5) With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals TE1 and E1 on data link connector No. 1. (6) With jumper wire removed from data link connector No. 1. (7) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . Check with transit in inspection mode and transaxle in Park. |
| (1) | Check with engine at normal operating temperature, transaxle/transmission in Neutral (except Prius, in Park on Prius), parking brake applied, and A/C and all accessories off. |
| (2) | With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals No. 4 (CG) and 13 (TC) on data link connector No. 3. |
| (3) | With jumper wire removed from data link connector No. 3. |
| (4) | Information is not available from manufacturer. |
| (5) | With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals TE1 and E1 on data link connector No. 1. |
| (6) | With jumper wire removed from data link connector No. 1. |
| (7) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . Check with transit in inspection mode and transaxle in Park. |
IGNITION TIMING (Degrees BTDC @ Idle) (4-CYLINDER) (1)
IGNITION TIMING (V6)
| Application | Base Timing | ECM Controlled Timing |
|---|
| Avalon | (2) 8-12 | (3) 10-25 |
| Camry | (4) 8-12 | (5) 7-25 |
| Camry Solara | (6) 8-12 | (3) 7-24 |
| Highlander | (4) 8-12 | (5) 7-24 |
| Sienna | (6) 8-12 | (3) 7-24 |
| Tacoma | (4) 8-12 | (5) 3-19 |
| Tundra | (4) 8-12 | (5) 12.5-22 |
| 4Runner | (6) 8-12 | (3) 3-19 |
| (1) Check with engine at normal operating temperature, transaxle/transmission in Neutral, parking brake applied, and A/C and all accessories off. (2) With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals TE1 and E1 on data link connector No. 1. (3) With jumper wire removed from data link connector No. 1. (4) With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals CG and TC on data link connector No. 3. (5) With jumper wire removed from data link connector No. 3. (6) With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals E1 and TC on data link connector No. 1. |
| (1) | Check with engine at normal operating temperature, transaxle/transmission in Neutral, parking brake applied, and A/C and all accessories off. |
| (2) | With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals TE1 and E1 on data link connector No. 1. |
| (3) | With jumper wire removed from data link connector No. 1. |
| (4) | With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals CG and TC on data link connector No. 3. |
| (5) | With jumper wire removed from data link connector No. 3. |
| (6) | With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals E1 and TC on data link connector No. 1. |
IGNITION TIMING (Degrees BTDC @ Idle) (V6) (1)
IGNITION TIMING (V8)
| Application | Base Timing | ECM Controlled Timing |
|---|
| Land Cruiser | (2) 5-15 | (3) (4) |
| Sequoia | (5) 5-15 | (4) (6) |
| Tundra | (5) 8-12 | (4) (6) |
| (1) Check with engine at normal operating temperature, transmission in Neutral, parking brake applied, and A/C and all accessories off. (2) With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals TC and E1 on data link connector No. 1. (3) With jumper wire removed from data link connector No. 1. (4) Information was not available from manufacturer. (5) With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals CG and TC on data link connector No. 3. (6) With jumper wire removed from data link connector No. 3. |
| (1) | Check with engine at normal operating temperature, transmission in Neutral, parking brake applied, and A/C and all accessories off. |
| (2) | With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals TC and E1 on data link connector No. 1. |
| (3) | With jumper wire removed from data link connector No. 1. |
| (4) | Information was not available from manufacturer. |
| (5) | With Jumper Wire (SST 09843-18020 or SST 09843-18040) installed between terminals CG and TC on data link connector No. 3. |
| (6) | With jumper wire removed from data link connector No. 3. |
IGNITION TIMING (Degrees BTDC @ Idle) (V8) (1)
FUEL PUMP
Note. Fuel pump performance measures fuel pressure, not regulated fuel pressure.
FUEL PUMP PERFORMANCE (4-CYLINDER)
| Application | (1) Pressure psi (kg/cm 2 ) |
|---|
| Camry, Camry Solara, Celica, Corolla, ECHO, Highlander & MR2 | 44-50 (3.1-3.5) |
| Prius (2) | 44-50 (3.1-3.5) |
| RAV4 | 44-50 (3.1-3.5) |
| Tacoma | 38-44 (2.7-3.1) |
| (1) Check fuel pressure with engine off and using Toyota hand-held tester connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. (2) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
| (1) | Check fuel pressure with engine off and using Toyota hand-held tester connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. |
| (2) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
FUEL PUMP PERFORMANCE (4-CYLINDER)
FUEL PUMP PERFORMANCE (V6)
| Application | (1) Pressure psi (kg/cm 2 ) |
|---|
| Avalon, Camry, Camry Solara, Highlander & Sienna | 44-50 (3.1-3.5) |
| Tacoma, Tundra & 4Runner | 38-44 (2.7-3.1) |
| (1) Check fuel pressure with engine off and using Toyota hand-held tester connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. |
| (1) | Check fuel pressure with engine off and using Toyota hand-held tester connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. |
FUEL PUMP PERFORMANCE (V6)
FUEL PUMP PERFORMANCE (V8)
| Application | (1) Pressure psi (kg/cm 2 ) |
|---|
| Land Cruiser, Sequoia & Tundra | 38-44 (2.7-3.1) |
| (1) Check fuel pressure with engine off and using Toyota hand-held tester connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. |
| (1) | Check fuel pressure with engine off and using Toyota hand-held tester connected to data link connector No. 3 with ignition on to activate fuel pump or by connecting battery voltage to terminals on electric fuel pump. |
FUEL PUMP PERFORMANCE (V8)
REGULATED FUEL PRESSURE (4-CYLINDER)
| Application | At Idle W/Vacuum psi (kg/cm 2 ) | At Idle W/O Vacuum psi (kg/cm 2 ) |
|---|
| Camry, Camry Solara, Celica, Corolla, ECHO, Highlander & MR2 | (1) | (1) |
| Prius (2) | (1) | (1) |
| RAV4 | (1) | (1) |
| Tacoma | (3) | (3) |
| (1) Fuel pressure should be 44-50 psi (3.1-3.5 kg/cm 2 ) with engine idling. Fuel pressure regulator is not vacuum controlled, as fuel pressure regulator is mounted on electric fuel pump in the fuel tank. (2) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . (3) Check vacuum hose routing for fuel pressure regulator to determine if fuel pressure regulator is vacuum controlled. If vacuum hose is connected to engine vacuum and not vented to the air cleaner assembly, fuel pressure regulator is vacuum controlled. If vacuum hose is vented to air cleaner assembly and not to engine vacuum, fuel pressure regulator is not vacuum controlled. On models with vacuum controlled fuel pressure regulator, fuel pressure should be 31-37 psi (2.2-2.6 kg/cm 2 ) with engine idling and vacuum applied, and 38-44 (2.7-3.1 psi 2.7-3.1 kg/cm 2 ) without vacuum with engine idling. On models without vacuum controlled fuel pressure regulator, fuel pressure should be 38-44 psi (2.7-3.1 kg/cm 2 ) with engine idling. |
| (1) | Fuel pressure should be 44-50 psi (3.1-3.5 kg/cm 2 ) with engine idling. Fuel pressure regulator is not vacuum controlled, as fuel pressure regulator is mounted on electric fuel pump in the fuel tank. |
| (2) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
| (3) | Check vacuum hose routing for fuel pressure regulator to determine if fuel pressure regulator is vacuum controlled. If vacuum hose is connected to engine vacuum and not vented to the air cleaner assembly, fuel pressure regulator is vacuum controlled. If vacuum hose is vented to air cleaner assembly and not to engine vacuum, fuel pressure regulator is not vacuum controlled. On models with vacuum controlled fuel pressure regulator, fuel pressure should be 31-37 psi (2.2-2.6 kg/cm 2 ) with engine idling and vacuum applied, and 38-44 (2.7-3.1 psi 2.7-3.1 kg/cm 2 ) without vacuum with engine idling. On models without vacuum controlled fuel pressure regulator, fuel pressure should be 38-44 psi (2.7-3.1 kg/cm 2 ) with engine idling. |
REGULATED FUEL PRESSURE (4-CYLINDER)
REGULATED FUEL PRESSURE (V6)
| Application | At Idle W/Vacuum psi (kg/cm 2 ) | At Idle W/O Vacuum psi (kg/cm 2 ) |
|---|
| Avalon, Camry, Camry Solara, Highlander & Sienna | (1) | (1) |
| Tacoma, Tundra & 4Runner | (2) | (2) |
| (1) Fuel pressure should be 44-50 psi (3.1-3.5 kg/cm 2 ) with engine idling. Fuel pressure regulator is not vacuum controlled, as fuel pressure regulator is mounted on electric fuel pump in the fuel tank. (2) Check vacuum hose routing for fuel pressure regulator to determine if fuel pressure regulator is vacuum controlled. If vacuum hose is connected to engine vacuum and not vented to the air cleaner assembly, fuel pressure regulator is vacuum controlled. If vacuum hose is vented to air cleaner assembly and not to engine vacuum, fuel pressure regulator is not vacuum controlled. On models with vacuum controlled fuel pressure regulator, fuel pressure should be 33-38 psi (2.3-2.7 (kg/cm 2 ) with engine idling and vacuum applied, and 38-44 psi (2.7-3.1 kg/cm 2 ) without vacuum with engine idling. On models without vacuum controlled fuel pressure regulator, fuel pressure should be 38-44 psi (2.7-3.1 kg/cm 2 ) with engine idling. |
| (1) | Fuel pressure should be 44-50 psi (3.1-3.5 kg/cm 2 ) with engine idling. Fuel pressure regulator is not vacuum controlled, as fuel pressure regulator is mounted on electric fuel pump in the fuel tank. |
| (2) | Check vacuum hose routing for fuel pressure regulator to determine if fuel pressure regulator is vacuum controlled. If vacuum hose is connected to engine vacuum and not vented to the air cleaner assembly, fuel pressure regulator is vacuum controlled. If vacuum hose is vented to air cleaner assembly and not to engine vacuum, fuel pressure regulator is not vacuum controlled. On models with vacuum controlled fuel pressure regulator, fuel pressure should be 33-38 psi (2.3-2.7 (kg/cm 2 ) with engine idling and vacuum applied, and 38-44 psi (2.7-3.1 kg/cm 2 ) without vacuum with engine idling. On models without vacuum controlled fuel pressure regulator, fuel pressure should be 38-44 psi (2.7-3.1 kg/cm 2 ) with engine idling. |
REGULATED FUEL PRESSURE (V6)
REGULATED FUEL PRESSURE (V8)
| Application | At Idle W/Vacuum psi (kg/cm 2 ) | At Idle W/O Vacuum psi (kg/cm 2 ) |
|---|
| Land Cruiser, Sequoia & Tundra | (1) | (1) |
| (1) Fuel pressure should be 38-44 (2.7-3.1 kg/cm 2 ) with engine idling. Fuel pressure regulator is not vacuum controlled. |
| (1) | Fuel pressure should be 38-44 (2.7-3.1 kg/cm 2 ) with engine idling. Fuel pressure regulator is not vacuum controlled. |
REGULATED FUEL PRESSURE (V8)
FUEL PUMP RESISTANCE
| Application | Ohms @ 68°F (20°C) |
|---|
| All Models | .2-3.0 |
FUEL INJECTOR RESISTANCE
| Application | Ohms @ 68°F (20°C) |
|---|
| Avalon, Camry, Camry Solara, Celica, Corolla, ECHO, Highlander, Land Cruiser & MR2 | 13.40-14.20 |
| Prius (1) | 13.40-14.20 |
| RAV4, Sequoia & Sienna | 13.40-14.20 |
| Tacoma |
| 2.4L 4-Cyl. & 2.7L 4-Cyl. | 12.00-16.00 |
| 3.4L V6 | 13.80 |
| Tundra |
| 3.4L V6 & 4.7L V8 | 13.40-14.20 |
| 4Runner | 13.80 |
| (1) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
| (1) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
THROTTLE OPENER
| Application | RPM |
|---|
| Avalon | 1100-1700 |
| Camry Solara |
| 3.0L V6 | 900-1950 |
| Sienna | 900-1950 |
| Tacoma |
| 2.4L 4-Cyl. & 2.7L 4-Cyl. | 1200-1500 |
| 3.4L V6 | 900-1950 |
| Tundra |
| 3.4L V6 | 900-1950 |
| (1) Check with engine at normal operating temperature and throttle opener vacuum hose disconnected and plugged. |
| (1) | Check with engine at normal operating temperature and throttle opener vacuum hose disconnected and plugged. |
THROTTLE OPENER SPECIFICATIONS (1)
FUEL CUT SYSTEM
| Application | Fuel Return RPM |
|---|
| Avalon | 1200 |
| Camry | (2) |
| Camry Solara |
| 2.4L 4-Cyl. |
| A/T | 1500 |
| M/T | 1200 |
| 3.0L V6 | 1200 |
| Celica, Corolla & ECHO | 1400 |
| Highlander | (2) |
| Land Cruiser | 1000 |
| MR2 | 1400 |
| Prius (3) | 1400 |
| RAV4 & Sequoia | 1400 |
| Sienna | 1200 |
| Tacoma |
| 2.4L 4-Cyl. & 2.7L 4-Cyl. |
| A/T | 1500 |
| M/T | 1400 |
| 3.4L V6 |
| A/T | 1200 |
| M/T | 1000 |
| Tundra |
| 3.4L V6 |
| A/T | 1200 |
| M/T | 1000 |
| 4.7L V8 | 1000 |
| 4Runner | 1500 |
| (1) Check with engine at normal operating temperature and A/C off. (2) Information is not available from manufacturer. (3) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
| (1) | Check with engine at normal operating temperature and A/C off. |
| (2) | Information is not available from manufacturer. |
| (3) | Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
FUEL CUT SPECIFICATIONS (1)
THROTTLE POSITION SENSOR
Note. Throttle position sensor is not adjustable. For testing procedures, see appropriate SYSTEM & COMPONENT TESTING article.
| WARNING | On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . |
