D02 Engine running irregularly (missing strokes)
- Make
- Fiat
- Model
- Seicento Factory Service Manual
- Year
- 1998–2010
- Section
- Engine › D02 Engine running irregularly (missing strokes)
DiagnosisD02 Engine running irregularly (missing strokes) · page 1 of 2
Diagnosis table
D02 Engine running irregularly ( missing strokes)
The engine is running irregularly under all conditions (load, speed, etc.).
In particular, irregular falls in performance are noted, also prolonged ones
- – Preliminarily check:
- – lack of water, fluid or dirt in the fuel tank
- – condition of spark plugs
- – fuel filter clogged up
- – condition of fuel delivery pipe
| Step | Validity | Operation to be performed | Test results | ||
|---|---|---|---|---|---|
| OK | ⚠ | 🔧 | |||
| 1 | CHECK WITH DIAGNOSTIC TOOL Connect the diagnostic tool (Examiner or other tool) to the diagnostic socket. Check for: – absence of faults in the engine ECU – plausibility of all parameters |
All OK Go to Step 2 |
Problems found Failed conversation with the ECU |
Intervention Restore connection between engine ECU and diagnostic socket (Wiring diagram: E5030 “PETROL ENGINE ELECTRONIC MANAGEMENT”) |
|
| Error detected in the ECU | Continue as shown by the diagnostic tool | ||||
| 2 | CHECK INJECTOR With the diagnostic tool (Examiner or other tool) carry out active tests of the injector |
All OK Go to Step 3 |
Problems found Injector fault |
Intervention Restore connection between injector and ECU, (Wiring diagram: E5030 “PETROL ENGINE ELECTRONIC MANAGEMENT”) or replace the injector PROCEDURE OP. 1056A70 |
|
(Cont..)
Parts & tools for this job For 1998 Fiat Seicento
- PARTEngine gasket setSearch: Fiat Seicento 1998 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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