ENGINE COMPRESSION
Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.
| Application | Specification |
|---|
| Compression Ratio |
| SOHC | 9.5:1 |
| DOHC | 10.0:1 |
| Compression Pressure |
| SOHC | 192 psi (13.4 kg/cm 2 ) |
| DOHC | 206 psi (14.6 kg/cm 2 ) |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm 2 ) |
COMPRESSION SPECIFICATIONS
IGNITION COIL
| Application | Primary | Secondary |
|---|
| SOHC | .9-1.2 | 20,000-29,000 |
| DOHC | .67-.81 | 11,310-15,300 |
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)
HIGH TENSION WIRE RESISTANCE
Note. Following resistance specifications are preferred. Wire resistance should not exceed 22 k/ohms. Individual wire specifications are not available for 2.4L (VIN L).
| Application | Ohms |
|---|
| Coil Wire | (1) |
| No. 1 Wire | 12,500 |
| No. 2 Wire | 11,700 |
| No. 3 Wire | 9300 |
| No. 4 Wire | 8500 |
| (1) Information is not available from manufacturer. |
| (1) | Information is not available from manufacturer. |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | Nippondenso No. |
|---|
| SOHC | K16PR-U11 |
| DOHC | W20EPR-11 |
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|
| All Models | .039-.043 (1.0-1.1) | 15-21 (20-30) |
SPARK PLUG SPECIFICATIONS
FIRING ORDER
| WARNING | On many models, improper arrangement of spark plug wires will cause miss firing and surge during high-speed operation. Ensure spark plug wires are routed as shown. |
Scheme 1
Scheme 1: Firing Order & Plug Wire Routing (2.4L SOHC)
Scheme 2
Scheme 2: Firing Order & Plug Wire Routing (2.4L DOHC)
IGNITION TIMING
| Application | (1) Basic | (2) (3) Actual |
|---|
| SOHC | 3-7 @ 650-850 | 10 @ 650-850 |
| DOHC | 2-8 @ 700-900 | 8 @ 700-900 |
| (1) With ignition timing adjustment connector grounded or vacuum hose (farthest from distributor) disconnected. (2) With ignition timing adjustment connector ungrounded or vacuum hose (farthest from distributor) connected. Ignition timing may fluctuate. (3) If vehicle altitude is more than 2300 ft. above sea level, actual timing may be advanced (5 degrees). |
| (1) | With ignition timing adjustment connector grounded or vacuum hose (farthest from distributor) disconnected. |
| (2) | With ignition timing adjustment connector ungrounded or vacuum hose (farthest from distributor) connected. Ignition timing may fluctuate. |
| (3) | If vehicle altitude is more than 2300 ft. above sea level, actual timing may be advanced (5 degrees). |
IGNITION TIMING (Degrees BTDC @ RPM)
FUEL PUMP
| Application | At Idle w/Vacuum psi (kg/cm 2 ) | At Idle w/o Vacuum psi (kg/cm 2 ) |
|---|
| All Models | 38 (2.6) | 47-50 (3.3-3.5) |
IDLE SPEED
| Application | Curb Idle | Basic Idle |
|---|
| SOHC | 650-850 | 650-850 |
| DOHC | 700-900 | 700-900 |
IDLE SPEED SPECIFICATIONS
INJECTOR RESISTANCE
| Application | Ohms |
|---|
| All Models | 13-16 |
THROTTLE POSITION SENSOR (TPS)
| Application | (1) Volts |
|---|
| All Models | .4-1.0 |
| (1) At idle. |
