Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSAAB19879000 L4-1985CC 2.0L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIR
1987 Saab 9000 L4-1985cc 2.0L DOHC
Engine Control Module: Service and Repair
1987 Saab 9000 L4-1985cc 2.0L DOHCSECTION Service and Repair
LH Control Module
Removal
1 Turn the ignition switch to OFF.
Important: Wait at least 40 seconds before unplugging the control module connector. If this is not done, the control module could be damaged since it takes 32 seconds for the main relay to cut off its power supply.
2 Remove the cover panel over the false bulkhead space on the left-hand side.
3 Unplug the ABS control module.
4 Undo the LH control module's retaining bolts or release its clip.
5 Release the connector's toggle clip and remove the control module.
Fitting
Fit in reverse order.
Drive the car on test for adaptation of the new control module.
Important
The LH control module used in systems with a mass air flow sensor of plastic must never be replaced by a control module designed for systems with a mass air flow sensor of aluminium. If this is done, the mass air flow sensor will be ruined.
Mass air flow sensors of aluminium are fitted to all model year 1985-1987 car versions and to model year 1988 turbo cars.
Removal
1 Turn the ignition switch to OFF.
Important: Wait at least 40 seconds before unplugging the control module connector. If this is not done, the control module could be damaged since it takes 32 seconds for the main relay to cut off its power supply.
2 Remove the cover panel over the false bulkhead space on the left-hand side.
3 Unplug the ABS control module.
4 Undo the LH control module's retaining bolts or release its clip.
5 Release the connector's toggle clip and remove the control module.
Fitting
Fit in reverse order.
Drive the car on test for adaptation of the new control module.
Important
The LH control module used in systems with a mass air flow sensor of plastic must never be replaced by a control module designed for systems with a mass air flow sensor of aluminium. If this is done, the mass air flow sensor will be ruined.
Mass air flow sensors of aluminium are fitted to all model year 1985-1987 car versions and to model year 1988 turbo cars.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.