ENGINE COMPRESSION
Check engine compression with engine at cranking speed with battery fully charged, engine at normal operating temperature, all spark plugs removed and throttle wide open.
| Application | Specification |
|---|
| Normal Compression Pressure |
| ES300 | 218 psi (15.3 kg/cm 2 ) |
| GS300 & SC300 | 192 psi (13.5 kg/cm 2 ) |
| GS400, LS400 & SC400 | 178 psi (12.5 kg/cm 2 ) |
| LX470 | 192 psi (13.5 kg/cm 2 ) |
| RX300 | 218 psi (15.3 kg/cm 2 ) |
| Minimum Compression Pressure |
| ES300 | 145 psi (10.1 kg/cm 2 ) |
| GS300 & SC300 | 156 psi (11.0 kg/cm 2 ) |
| GS400, LS400, LX470 & SC400 | 142 psi (10.0 kg/cm 2 ) |
| RX300 | 145 psi (10.1 kg/cm 2 ) |
| Maximum Variation Between Cylinders |
| All Models | 14 psi (1.0 kg/cm 2 ) |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
| Application | In. (mm) |
|---|
| Intake | .006-.010 (.15-.25) |
| Exhaust | .010-.014 (.25-.35) |
| (1) Adjust valve clearance with engine cold. |
| (1) | Adjust valve clearance with engine cold. |
VALVE CLEARANCE SPECIFICATIONS (1)
IGNITION COIL
| Application | Primary | Secondary |
|---|
| ES300 | (1) | (1) |
| GS300 & SC300 |
| Cold (2) | .33-.52 | 8500-14,700 |
| Hot (3) | .42-.61 | 10,800-17,200 |
| GS400, LS400, LX470, RX300 & SC400 | (1) | (1) |
| (1) Ignition coil resistance is not available from manufacturer. (2) Cold is with temperature of 14-122°F (-10-50°C). (3) Hot is with temperature of 122-212°F (51-100°C). |
| (1) | Ignition coil resistance is not available from manufacturer. |
| (2) | Cold is with temperature of 14-122°F (-10-50°C). |
| (3) | Hot is with temperature of 122-212°F (51-100°C). |
IGNITION COIL RESISTANCE (OHMS)
CAMSHAFT POSITION SENSOR
| Application | Ohms |
|---|
| All Models |
| 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). |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
CAMSHAFT POSITION SENSOR RESISTANCE
CRANKSHAFT POSITION SENSOR
| Application | Ohms |
|---|
| All Models |
| 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). |
| (1) | Cold is with temperature of 14-122°F (-10-50°C). |
| (2) | Hot is with temperature of 122-212°F (50-100°C). |
CRANKSHAFT POSITION SENSOR RESISTANCE
HIGH TENSION WIRE RESISTANCE
| Application | Maximum Ohms |
|---|
| ES300, GS400, LS400, LX470, RX300 & SC400 | (1) |
| GS300 & SC300 | 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 PLUGS
| Application | NGK No. | Denso No. |
|---|
| ES300, GS400, LS400, LX470, RX300 & SC400 | IFR6A11 | SK20R11 |
| GS300 & SC300 | BKR5EKPB11 | PK16TR11 |
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|
| All Models | .043 (1.10) | 13 (18) |
SPARK PLUG SPECIFICATIONS
FIRING ORDER
| Application | Firing Order |
|---|
| ES300 & RX300 (1) | (2) 1-2-3-4-5-6 |
| GS300 & SC300 (3) | (4) |
| GS400, LS400, LX470 & SC400 (1) | (5) 1-8-4-3-6-5-7-2 |
| (1) System uses a Distributorless Ignition System (DIS) with ignition coil for each cylinder. (2) 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. (3) System uses a Distributorless Ignition System (DIS) with 3 ignition coils. Cylinders No. 1 and 6 use same ignition coil. Cylinders No. 2 and 5 use same ignition coil. Cylinders No. 3 and 4 use same ignition coil. Cylinder No. 1 is located at timing belt end of engine and cylinder No. 6 is located at flywheel end of engine. (4) Firing order is not available from manufacturer. (5) 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) | System uses a Distributorless Ignition System (DIS) with ignition coil for each cylinder. |
| (2) | 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. |
| (3) | System uses a Distributorless Ignition System (DIS) with 3 ignition coils. Cylinders No. 1 and 6 use same ignition coil. Cylinders No. 2 and 5 use same ignition coil. Cylinders No. 3 and 4 use same ignition coil. Cylinder No. 1 is located at timing belt end of engine and cylinder No. 6 is located at flywheel end of engine. |
| (4) | Firing order is not available from manufacturer. |
| (5) | 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. |
IGNITION TIMING
| Application | (2) Base Timing | (3) ECM Controlled Timing |
|---|
| ES300 & RX300 | 8-12 | 10-25 |
| GS300 & SC300 | 8-12 | 6-16 |
| GS400, LS400 & SC400 | 8-12 | (4) |
| LX470 | 5-15 | (4) |
| (1) Check with engine at normal operating temperature, transmission/transaxle in Neutral, parking brake applied, and A/C and all accessories off. (2) With Jumper Wire (SST 09843-18020) installed between data link connector No. 1 terminals TE1 and E1 on ES300 and RX300 models, or terminals TC and E1 on all other models. (3) With jumper wire removed from data link connector No. 1. (4) Information is not available from manufacturer. |
| (1) | Check with engine at normal operating temperature, transmission/transaxle in Neutral, parking brake applied, and A/C and all accessories off. |
| (2) | With Jumper Wire (SST 09843-18020) installed between data link connector No. 1 terminals TE1 and E1 on ES300 and RX300 models, or terminals TC and E1 on all other models. |
| (3) | With jumper wire removed from data link connector No. 1. |
| (4) | Information is not available from manufacturer. |
IGNITION TIMING (DEGREES BTDC @ IDLE) (1)
FUEL PUMP
| Application | (1) Pressure psi (kg/cm 2 ) |
|---|
| ES300, GS300, GS400, LS400, RX300, SC300 & SC400 | 44-50 (3.1-3.5) |
| LX470 | 38-44 (2.7-3.1) |
| (1) Check fuel pressure with engine off and using scan tool 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 scan tool 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. |
| Application | At Idle W/Vacuum psi (kg/cm 2 ) | At Idle W/O Vacuum psi (kg/cm 2 ) |
|---|
| ES300, GS300, GS400, LS400, RX300, SC300 & SC400 | (1) | (1) |
| LX470 | 28-34 (2.0-2.4) | 38-44 (2.7-3.1) |
| (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. |
| (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. |
| Application | Ohms @ 68°F (20°C) |
|---|
| All Models | .2-3.0 |
FUEL INJECTOR RESISTANCE
| Application | Ohms @ 68°F (20°C) |
|---|
| All Models | 13.4-14.2 |
IDLE SPEED
| Application | Idle RPM |
|---|
| ES300, GS300, LX470, RX300 & SC300 | 650-750 |
| GS400, LS400 & SC400 | 700-800 |
| (1) Check with engine at normal operating temperature, transaxle/transmission in Neutral, parking brake applied, air cleaner and all vacuum and air induction hoses installed, electronic fuel injection system wiring connectors properly installed, ignition timing properly set, and A/C and all accessories off. |
| (1) | Check with engine at normal operating temperature, transaxle/transmission in Neutral, parking brake applied, air cleaner and all vacuum and air induction hoses installed, electronic fuel injection system wiring connectors properly installed, ignition timing properly set, and A/C and all accessories off. |
IDLE SPEED SPECIFICATIONS (1)
THROTTLE OPENER
| Application | RPM |
|---|
| ES300 | 1100-1700 |
| RX300 | (2) |
| (1) Check with throttle opener vacuum hose disconnected and plugged, engine idling and at normal operating temperature. (2) Information is not available from manufacturer. |
| (1) | Check with throttle opener vacuum hose disconnected and plugged, engine idling and at normal operating temperature. |
| (2) | Information is not available from manufacturer. |
THROTTLE OPENER SPECIFICATIONS (1)
FUEL CUT
| Application | Fuel Return RPM |
|---|
| ES300 | 1200 |
| GS300 | 1000 |
| GS400 & LS400 | 1400 |
| LX470 | 1000 |
| RX300 | 1200 |
| SC300 | 1000 |
| SC400 | 1400 |
| (1) Check with engine at normal operating temperature and A/C off. |
| (1) | Check with engine at normal operating temperature and A/C off. |
FUEL CUT SPECIFICATIONS (1)
THROTTLE POSITION (TP) SENSOR
| Application | Terminals | Ohms @ 68°F (20°C) |
|---|
| ES300 & RX300 (1) |
| Throttle Fully Closed | VTA & E2 | 200-6300 |
| Throttle Fully Open | VTA & E2 | 2000-10,200 |
| VC & E2 | 2500-5900 |
| GS300 & SC300 | VC & E2 | (2) 1200-3200 |
| GS400, LS400, LX470 & SC400 | VC & E2 | (2) 1250-2350 |
| (1) Apply vacuum to throttle opener before checking TP sensor. Check resistance between specified terminals with throttle fully closed and throttle fully open. (2) Resistance at 68°F (20°C). |
| (1) | Apply vacuum to throttle opener before checking TP sensor. Check resistance between specified terminals with throttle fully closed and throttle fully open. |
| (2) | Resistance at 68°F (20°C). |
TP SENSOR RESISTANCE SPECIFICATIONS
