ENGINE COMPRESSION
Check engine compression at normal operating temperature with all spark plugs removed. To prevent damage to catalytic converter, make tests quickly and only when necessary.
Note. Compression specifications are not supplied by manufacturer. Difference between cylinders must not exceed 29 psi.
VALVE CLEARANCE (2.0L & 2.3L)
Note. 3.0L information is not available from manufacturer.
All models are equipped with hydraulic lifters. Checking valve clearance requires the use of Saab special service tool No. 83 93 753 and assumes the cylinder head is off the vehicle, and camshafts and tappets are removed. (Scheme 1) To increase valve clearance, valve stem must be shortened and to decrease valve clearance, valve seat must be reground.
Scheme 1
IGNITION COIL
Trionic Engine Management System uses an ignition discharge module that houses all ignition coils. Resistance values are not available from manufacturer. For diagnostic testing procedures, see appropriate SELF-DIAGNOSTICS article.
SPARK PLUGS
| Application | Spark Plug | ||
|---|---|---|---|
| 9-3 Series | |||
| 1999 | |||
| 2.0L (185 HP) | NGK BCPR 7ES-11 | ||
| 2.0L (200 HP) | NGK PFR 7H-10 | ||
| 2000 | |||
| All Engines | NGK PFR 7H-10 | ||
| 9-5 Series | |||
| 1999 | |||
| 2.3L | NGK BCPR 7ES-11 | ||
| 3.0L | NGK BKR 7ES-11 | ||
| 2000 | |||
| 2.3L (170 bhp) | NGK BCPR 6ES-11 | ||
| 2.3L (230 bhp) | NGK PFR 7H-10 | ||
| 3.0L | NKG BKR 7ES-11 | ||
SPARK PLUG TYPE
| Application | Gap - In. (mm) |
|---|---|
| All Models | 0.039 (1.00) |
| (1) Tighten to 18.5-21.5 ft. lbs. (25-29 N.m). | |
| (1) | Tighten to 18.5-21.5 ft. lbs. (25-29 N.m). |
SPARK PLUG SPECIFICATIONS (1)
FIRING ORDER
Note. (Scheme 2)And (Scheme 3).
Scheme 2
Scheme 3
IGNITION TIMING
Trionic Engine Management System measures spark plug resistance to control ignition timing, eliminating the need for Camshaft Position (CMP) sensor and Knock Sensor (KS). Ignition timing is controlled by ECM and is not adjustable.
FUEL PUMP
| Application | Pressure psi (kg/cm 2 ) | Min. Vol. In 30 Sec. Pts. (L) |
|---|---|---|
| All Models | 43 (3.0) | 1.5 (0.7) |
FUEL SYSTEM REGULATED PRESSURE AT IDLE
INJECTOR RESISTANCE
| Application | (1) Ohms | |
|---|---|---|
| 9-3 Series | ||
| Trionic T-5 | 11.65-12.35 | |
| Trionic T-7 (2) | 15.15-16.75 | |
| 9-5 Series (All Engines) | 15.15-16.75 | |
| (1) Resistance measured at 68°F (20°C). (2) 1999 model only. 2000 LEV information not available from manufacturer. | ||
| (1) | Resistance measured at 68°F (20°C). |
| (2) | 1999 model only. 2000 LEV information not available from manufacturer. |
INJECTOR RESISTANCE
IDLE SPEED
| Application | Idle RPM | |
|---|---|---|
| 9-3 Series | ||
| T-5 Trionic Engine Management System | 850-950 | |
| T-7 Trionic Engine Management System | 825 | |
| 9-5 Series | ||
| 2.3L | 825 | |
| 3.0L | 700 | |
IDLE SPEED
Trionic T-5
| Terminals No. | Throttle Position | (1) Voltage |
|---|---|---|
| 1-2 | N/A | 4.9-5.1 |
| 2-3 | Closed | 0.1-0.9 |
| 2-3 | Open | 4.1-4.9 |
| (1) Ignition switch on, backprobe TP sensor harness connector. | ||
| (1) | Ignition switch on, backprobe TP sensor harness connector. |
THROTTLE POSITION SENSOR VOLTAGES - TRIONIC T-5 ENGINE MANAGEMENT SYSTEM
Trionic T-7
Throttle valve position is entirely controlled by ECM unless a serious throttle control fault occurs. Then limp-home solenoid activates and throttle is controlled by throttle cable. Trionic T-7 uses 2 throttle position sensors and 2 pedal position sensors; none are adjustable. If opening throttle by hand while engine is running, use pedal position sensor arm instead of throttle spindle to open throttle. Otherwise, fuel shutoff occurs and diagnostic trouble code (DTC) P1263 sets. If done while cranking, DTC P1251 sets and system goes into limp-home mode. If either DTC sets, go to appropriate SELF-DIAGNOSTICS article for diagnostic procedures.
| Sensor/Position | Pins No. | (1) Voltage | |
|---|---|---|---|
| Throttle Position Sensor No. 1 | |||
| Closed | 6-9 | 0.065-1.090 | |
| Open | 6-9 | 3.930-4.775 | |
| Throttle Position Sensor No. 2 | |||
| Closed | 8-9 | 3.910-4.935 | |
| Open | 8-9 | 0.025-1.070 | |
| Pedal Position Sensor No. 1 | |||
| Released | 1-9 | 3.990-4.645 | |
| Depressed | 1-9 | 0.400-1.055 | |
| Pedal Position Sensor No. 2 | |||
| Released | 3-9 | 0.355-1.010 | |
| Depressed | 3-9 | 3.945-4.600 | |
| (1) Ignition switch on, backprobe sensor harness connector. | |||
| (1) | Ignition switch on, backprobe sensor harness connector. |
THROTTLE/PEDAL POSITION SENSOR VOLTAGES - TRIONIC T-7