ENGINE COMPRESSION
To check engine compression, bring engine to normal operating temperature. Disconnect distributor electrical connector(s). Disconnect fuel injector connectors. Remove air intake hose from throttle body. Remove all spark plugs. Fully open throttle. Ensure engine cranking speed is at least 250 RPM when measuring compression.
| Application | Specification |
|---|
| Compression Ratio | 10.0:1 |
| Compression Pressure | 185 psi (13.0 kg/cm 2 ) |
| Minimum Compression Pressure | 156 psi (11.0 kg/cm 2 ) |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm 2 ) |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
| Application | (1) In. (mm) |
|---|
| Intake | .006-.010 (.15-.26) |
| Exhaust | .010-.014 (.26-.36) |
| (1) Check and adjust valves with engine cold. |
| (1) | Check and adjust valves with engine cold. |
VALVE CLEARANCE SPECIFICATIONS
IGNITION COIL
| Application | Primary | Secondary |
|---|
| Cold (1) | .21-.33 | 6400-11,100 |
| Hot (2) | .27-.39 | 8200-13,000 |
| (1) Coil temperature of 14-122°F (-10-50°C). (2) Coil temperature of 123-212°F (51-100°C). |
| (1) | Coil temperature of 14-122°F (-10-50°C). |
| (2) | Coil temperature of 123-212°F (51-100°C). |
IGNITION COIL RESISTANCE (OHMS)
DISTRIBUTOR SENSORS
| Application | In. (mm) |
|---|
| Pick-up Coil | .008-.020 (.20-.50) |
| (1) Not adjustable. If gap is incorrect, replace distributor housing. |
| (1) | Not adjustable. If gap is incorrect, replace distributor housing. |
DISTRIBUTOR PICK-UP COIL AIR GAP (1)
| Application | Ohms |
|---|
| Pick-Up Coils - Cold (1) |
| Between Terminals G1 & "G-" | 125-200 |
| Between Terminals G2 & "G-" | 125-200 |
| Between Terminals NE & "G-" | 155-250 |
| Pick-Up Coils - Hot (2) |
| Between Terminals G1 & "G-" | 160-235 |
| Between Terminals G2 & "G-" | 160-235 |
| Between Terminals NE & "G-" | 190-290 |
| (1) 14-122°F (-10-50°C). (2) 123-212°F (51-100°C). |
DISTRIBUTOR SENSOR RESISTANCE
HIGH TENSION WIRE RESISTANCE
| Application | Ohms |
|---|
| High Tension Wire | 25,000 Maximum |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | NGK No. |
|---|
| Plug Type | BKR5EP-11 |
| Application | Gap: In. (mm) | Torque: Ft. Lbs. (N.m) |
|---|
| New Plug | .043 (1.10) | 13 (17) |
| Maximum Wear (1) | .051 (1.30) | 13 (17) |
| (1) Replace spark plug if gap exceeds specification. |
| (1) | Replace spark plug if gap exceeds specification. |
SPARK PLUG SPECIFICATIONS
Scheme 1
Scheme 1: FIRING ORDER & CYLINDER NUMBERING
| Application | Firing Order |
|---|
| Firing Order | 1-5-3-6-2-4 |
| Application | (1) Cylinder Number |
|---|
| Cylinder | Front Cylinder Is No. 1 |
| (1) Starting at cylinder closest to timing belt-end of engine. |
| (1) | Starting at cylinder closest to timing belt-end of engine. |
IGNITION TIMING
| Application | (1) Base Timing | (2) Controlled Timing |
|---|
| Ignition Timing | 10 @ 650-750 | 7-19 @ 650-750 |
| (1) Jumper wire connected between terminals TE1 and E1 of DLC No. 1. (2) Jumper wire disconnected from DLC No. 1. |
| (1) | Jumper wire connected between terminals TE1 and E1 of DLC No. 1. |
| (2) | Jumper wire disconnected from DLC No. 1. |
IGNITION TIMING (Degrees BTDC @ RPM)
FUEL SYSTEM
| Application Tested | At Idle W/Vacuum psi (kg/cm 2 ) | At Idle W/O Vacuum psi (kg/cm 2 ) |
|---|
| Fuel Pump | 28-34 (2.0-2.4) | 38-44 (2.7-3.1) |
INJECTOR RESISTANCE
| Application | Ohms |
|---|
| Injector Resistance | 13.4-14.2 |
INJECTOR RESISTANCE SPECIFICATIONS - Ohms @ 68°F (20°C)
THROTTLE POSITION (TP) SENSOR
Note. Vehicles with Traction Control System (TRAC) are equipped with a main TP sensor and a sub-TP sensor. The following table applies to main TP sensor. For sub-TP sensor table, see SUB-THROTTLE POSITION (SUB-TP) SENSOR .
| Application & Throttle Plate Position (1) | TP Sensor (2) Terminals | Ohm Readings |
|---|
| Throttle Fully Closed | VTA1 & E2 | 340-6300 |
| .016" (.40 mm) (3) | IDL1 & E2 | 500 Or Less |
| .024" (.60 mm) (3) | IDL1 & E2 | Infinite (Open) |
| Throttle Fully Open | VTA1 & E2 | 2400-11,200 |
| All Positions | VC & E2 | 3100-7200 |
| (1) For terminal identification, see THROTTLE POSITION (TP) SENSOR in ON-VEHICLE ADJUSTMENTS article. (2) Disconnect vacuum hose from throttle opener. Apply vacuum to throttle opener to allow throttle to fullyseat. (3) Insert feeler gauge between throttle lever and throttle stop screw. |
| (1) | For terminal identification, see THROTTLE POSITION (TP) SENSOR in ON-VEHICLE ADJUSTMENTS article. |
| (2) | Disconnect vacuum hose from throttle opener. Apply vacuum to throttle opener to allow throttle to fullyseat. |
| (3) | Insert feeler gauge between throttle lever and throttle stop screw. |
SUB-THROTTLE POSITION (SUB-TP) SENSOR
Note. Vehicles with Traction Control System (TRAC) are equipped with a main TP sensor and a sub-TP sensor. The following table applies to sub-TP sensor. For main TP sensor table, see THROTTLE POSITION (TP) SENSOR .
| Throttle Plate Position | Sub-TP Sensor Terminals | Ohm Readings |
|---|
| Throttle Fully Closed | VTA1/2 & E2 | 340-6300 |
| .012" (.35 mm) (1) | IDL1/2 & E2 | 500 Or Less |
| .020" (.50 mm) (1) | IDL1/2 & E2 | Infinite (Open) |
| Throttle Fully Open | VTA1/2 & E2 | 2400-11,200 |
| All Positions | VC & E2 | 3100-7200 |
| (1) Remove sub-throttle actuator from throttle body. Insert feeler gauge between end of sub-throttle valve gear and sub-throttle valve stop screw. |
| (1) | Remove sub-throttle actuator from throttle body. Insert feeler gauge between end of sub-throttle valve gear and sub-throttle valve stop screw. |
THROTTLE OPENER
| Application | (1) RPM |
|---|
| Throttle Opener | 1100-1900 |
| (1) Disconnect and plug throttle opener vacuum hose. Specification is with engine at idle and at normal operating temperature. |
| (1) | Disconnect and plug throttle opener vacuum hose. Specification is with engine at idle and at normal operating temperature. |
THROTTLE OPENER SET SPEED SPECIFICATIONS
