The engine stumbles
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- The engine stumbles › The engine stumbles
Fuel system (V6)The engine stumbles
THE ENGINE STUMBLES
TEST I
| TEST PROCEDURE | RESULTS | CORRECTIVE ACTION | |
|---|---|---|---|
| I4 | CHECK HIGH VOLTAGE AND EARTH CABLES | OK NOT OK |
Proceed to phase I5 Replace the high voltage or earth cables. Correctly tighten the earth braids |
| - Check: | |||
| • that the high voltage cables (from the ignition coils to the spark plugs) are not damaged • that there is no electrical resistance preventing dissipation • that the earth braids are correctly tightened and are not oxidized |
|||
| I5 | CHECK ACCELERATOR CABLE | OK NOT OK |
Proceed to phase I6 Adjust the cable |
| - Check that the accelerator cable runs freely and check play - see GROUP 04 - ACCELERATOR CABLE ADJUSTMENT | |||
| I6 | CHECK CONTROL UNIT |
NOT OK
|
Replace the control unit |
| - Check that the MOTRONIC M1.7 control unit is working properly (by checking the vehicle using another control unit) as full load air enrichment could be faulty | |||
End of test I
Parts & tools for this job For 1992 Alfa Romeo 155
- PARTEngine gasket setSearch: Alfa Romeo 155 1992 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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