ENGINE COMPRESSION
Warm engine to normal operating temperature. Remove all spark plugs. Disconnect ignition coil primary wire connector. Hold throttle plate fully open. Crank engine and note compression pressure.
| Application | Specification |
|---|
| Millenia 2.5L | 9.2:1 |
| Application | Minimum psi (kg/cm 2 ) @ RPM | Standard psi (kg/cm 2 ) @ RPM |
|---|
| Millenia (1) | 142 (10.0) @ 250 | 203 (14.3) @ 250 |
| (1) Difference between cylinders should not be more than 28 psi(2.0 kg/cm 2 ). |
| (1) | Difference between cylinders should not be more than 28 psi(2.0 kg/cm 2 ). |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
| Application | (1) In. (mm) |
|---|
| Millenia 2.5L | (2) |
| (1) Adjust valves with engine cold. (2) Engines are equipped with hydraulic valve lash adjusters. Valve clearance is not adjustable. |
| (1) | Adjust valves with engine cold. |
| (2) | Engines are equipped with hydraulic valve lash adjusters. Valve clearance is not adjustable. |
VALVE CLEARANCE SPECIFICATIONS
IGNITION COIL
| Application | Primary | Secondary |
|---|
| Millenia 2.5L | .49-.73 | 20,000-31,000 |
CRANKSHAFT POSITION SENSOR
| Application | Ohms @ 68°F (20°C) |
|---|
| Millenia 2.5L | 520-580 |
CRANKSHAFT POSITION SENSOR RESISTANCE
HIGH TENSION WIRE RESISTANCE
High tension wire resistance should measure 16,000 ohms per 3.28 feet (1.0M) at 68°F (20°C).
SPARK PLUGS
| Application | NGK No. |
|---|
| Millenia 2.5L | ZFR5F-11 or ZFR6F-11 |
| Application | Gap: In. (mm) | Torque: Ft. Lbs. (N.m) |
|---|
| Millenia 2.5L | .040-.043 (1.0-1.1) | 11-16 (15-22) |
SPARK PLUG SPECIFICATIONS
Firing Order. Scheme 3
IGNITION TIMING
| Application | M/T | (1) A/T |
|---|
| Millenia 2.5L (2) | N/A | 9-11 @ 650 |
| (1) Place automatic transmission in Park. (2) Connect a jumper wire between terminals TEN and GND of data link connector. (Scheme 4) |
| (1) | Place automatic transmission in Park. |
| (2) | Connect a jumper wire between terminals TEN and GND of data link connector. (Scheme 4) |
IGNITION TIMING SPECIFICATIONS
Scheme 4
FUEL PUMP
Note. Fuel pump performance measures fuel pressure, not regulated fuel pressure.
| Application | Pressure psi (kg/cm 2 ) |
|---|
| Millenia 2.5L | 71-92 (5.0-6.5) |
| Application | Specification |
|---|
| At Idle With Vacuum | 30-38 psi (2.1-2.7 kg/cm 2 ) |
| At Idle Without Vacuum | 38-46 psi (2.7-3.2 kg/cm 2 ) |
INJECTOR RESISTANCE
| Application | Ohms |
|---|
| Millenia | 13.8 |
IDLE SPEED & MIXTURE
Note. Idle mixture is not adjustable. If idle mixture is incorrect, see TESTS W/CODES - 2.5L article.
| Application (2) | (1) RPM |
|---|
| Millenia | 600-700 |
| (1) Place automatic transmission in Park. (2) Connect a jumper wire between terminals TEN and GND at data link connector. (Scheme 4) |
| (1) | Place automatic transmission in Park. |
| (2) | Connect a jumper wire between terminals TEN and GND at data link connector. (Scheme 4) |
IDLE SPEED SPECIFICATIONS
THROTTLE POSITION (TP) SENSOR
Note. For information on connector terminal identification and test conditions specified in the following tables, see ADJUSTMENTS - 2.5L article.
| Condition (1) | (2) Continuity Between Terminals "C" & "D" |
|---|
| .006" (.15 mm) | Yes |
| .020" (.5 mm) | No |
| (1) Insert feeler gauge of specified thickness between throttle lever and throttle stop screw. (2) (Scheme 5) |
| (1) | Insert feeler gauge of specified thickness between throttle lever and throttle stop screw. |
Scheme 5
| ECM/PCM Wire Color (1) | Closed Throttle Volts | WOT Volts |
|---|
| Yellow/Red (3B) | .1-1.0 | 2.8-4.5 |
| (1) Measure voltage between ground and ECM/PCM terminal No. in parentheses. |
| (1) | Measure voltage between ground and ECM/PCM terminal No. in parentheses. |
