ENGINE COMPRESSION
| Application | Specification | |
|---|---|---|
| Compression Pressure (1) | ||
| 2.2L & 2.5L (2) | 156-185 psi (11.0-13.0 kg/cm 2 ) | |
| 3.0L (3) | 185-213 psi (13.0-15.0 kg/cm 2 ) | |
| (1) Maximum variation between cylinders is 7 psi (.5 kg/cm 2 ). (2) Engine cranking at 200-300 RPM with throttle open fully. (3) Engine cranking at 350 RPM with throttle open fully. | ||
| (1) | Maximum variation between cylinders is 7 psi (.5 kg/cm 2 ). |
| (2) | Engine cranking at 200-300 RPM with throttle open fully. |
| (3) | Engine cranking at 350 RPM with throttle open fully. |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
Note. Inspection and adjustment of valve clearance should be performed while engine is cold.
| Application | Clearance - In. (mm) | |
|---|---|---|
| 2.2L & 2.5L | ||
| Intake | .007-.009 (.18-.23) | |
| Exhaust | .009-.011 (.23-.27) | |
| 3.0L | ||
| Intake | .006-.009 (.14-.23) | |
| Exhaust | .008-.012 (.20-.30) | |
VALVE CLEARANCE
IGNITION COIL
Note. Ignition coil resistance is not measurable on Outback 3.0L. If vehicle does not start or ignition system failure is suspect, see BASIC DIAGNOSTIC PROCEDURES article.
| Application | (1) Primary | (2) Secondary |
|---|---|---|
| 2.2L & 2.5L | .66-.80 | 10,880-14,720 |
| (1) Checked between ignition coil and ignitor assembly connector terminals No. 1 and No. 2 and terminals No. 2 and No. 4. (Scheme 2) (2) Check between ignition coil secondary terminals No. 1 and No. 2, and terminals No. 3 and No. 4. (Scheme 2) | ||
| (1) | Checked between ignition coil and ignitor assembly connector terminals No. 1 and No. 2 and terminals No. 2 and No. 4. (Scheme 2) |
| (2) | Check between ignition coil secondary terminals No. 1 and No. 2, and terminals No. 3 and No. 4. (Scheme 2) |
IGNITION COIL RESISTANCE - OHMS @ 68°F (20°C)
HIGH TENSION WIRE RESISTANCE
Note. Outback 3.0L uses coil-on-plug system. No plug wires are used.
| Application | Ohms |
|---|---|
| No. 1 Spark Plug Cable | 7400-17,270 |
| No. 2 Spark Plug Cable | 6240-14,560 |
| No. 3 Spark Plug Cable | 6540-15,250 |
| No. 4 Spark Plug Cable | 6590-15,370 |
HIGH TENSION WIRE RESISTANCE - 2.2L & 2.5L
SPARK PLUGS
| Application | Champion | NGK |
|---|---|---|
| 2.2L & 2.5L | RC10YC4 | BKR6E-11 |
| 3.0L | — | PLFR6A-11 |
SPARK PLUG TYPE
| Application | Gap - In. (mm) | Torque - Ft. Lbs. (N.m) |
|---|---|---|
| All Models | .039-.043 (1.0-1.1) | 15 (20) |
SPARK PLUG SPECIFICATIONS
FIRING ORDER & TIMING MARKS
Note. Firing order for 2.2L & 2.5L is 1-3-2-4. For coil connections and cylinder identification (Scheme 2)and (Scheme 3). For timing marks (Scheme 5) Firing order for 3.0L 1-6-3-2-5-4. For cylinder identification (Scheme 4) No timing mark information is available for 3.0L engine.
Scheme 2
Scheme 3
Scheme 4
Scheme 5
IGNITION TIMING
| Application | Auto. Trans. | Man. Trans. |
|---|---|---|
| 2.2L & 2.5L | 15 @ 700 | 10 @ 650 |
| 3.0L (2) | 10 @ 600 | — |
| (1) To improve stability, timing is controlled while engine is idling. Timing range is plus or minus 8 degrees. (2) Timing must be checked using a scan tool. | ||
| (1) | To improve stability, timing is controlled while engine is idling. Timing range is plus or minus 8 degrees. |
| (2) | Timing must be checked using a scan tool. |
IGNITION TIMING (1) (Degrees BTDC @ RPM)
FUEL PUMP
Note. Fuel pressure information for Impreza, Outback Sport and Outback 3.0L is not available from manufacturer.
| Application | Vac. Line Connected - psi (kg/cm 2 ) | Vac. Line Disconnected - psi (kg/cm 2 ) |
|---|---|---|
| All Models | 30-34 (2.1-2.4) | 41-46 (2.9-3.2) |
FUEL PRESSURE AT IDLE
INJECTOR RESISTANCE
| Application | Ohms |
|---|---|
| All Models | 5-20 |
INJECTOR RESISTANCE SPECIFICATIONS
IDLE SPEED
| Application | RPM | ||
|---|---|---|---|
| Forester, Impreza & Outback Sport | |||
| With A/C Off | |||
| A/T | 600-800 | ||
| M/T | 550-750 | ||
| With A/C On | 800-900 | ||
| Legacy & Outback 2.5L | |||
| With A/C Off | |||
| A/T | 600-800 | ||
| M/T | 550-750 | ||
| With A/C On | 750-950 | ||
| Outback 3.0L | |||
| With A/C Off | 550-650 | ||
| With A/C On | 650-750 | ||
IDLE SPEED SPECIFICATIONS
FAST IDLE SPEED
Note. Fast idle speed is PCM controlled. Adjustment is not required.
THROTTLE POSITION (TP) SENSOR
Note. See ON-VEHICLE ADJUSTMENTS article for Throttle Position (TP) sensor adjustment procedure.