P0401 - EGR valve
- Make
- Fiat
- Model
- Croma Factory Service Manual
- Year
- 2005–2010
- Section
- Examiner - electronic diesel management › P0401 - EGR valve
P0401 - EGR VALVE
The diagnostic equipment signals: Error P0401 (EGR valve).
This error is detected if the actual value of the exhaust gas recirculation flow is less than the nominal value of the exhaust gas recirculation flow.
As a result, the exhaust gas recirculation valve is switched off and the supercharging pressure can longer be controlled and the quantity of fuel injected is reduced.
| 0 | Preliminary checks | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check that the air intake/vacuum circuit is working properly by carrying out the See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECK Check the operation of the low pressure supply circuit by carrying out the | Move on to Step 1 | Oil level incorrect | Restore the correct engine oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY | |
| 1 | EGR operation check | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check that the EGR valve is working properly by carrying out the | End of diagnosis |
Parts & tools for this job For 2005 Fiat Croma
- PARTExhaust gasketSearch: Fiat Croma 2005 exhaust gasket
- TOOLPenetrating oilSearch: penetrating oil
- TOOLOBD2 scannerSearch: OBD2 scanner
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