nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Engine - DTC's P0300/P0301-P0304 Set|Page 2275 > < Engine - DTC's P0300/P0301-P0304 Set|Page 2273
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DIAGNOSTIC FLOW CHART

Diagnostic Inspection

DIAGNOSTIC INSPECTION

Refer to section EC in the Service Manual under "P0300, P0301, P0302, P0303, P0304 MISFIRE" for details on the following inspection items.

1. Check operation of ignition coils and spark plugs.

2. Check fuel pressure.

3. Check fuel quality and condition  make sure diesel fuel has not been introduced into the fuel tank.

4. Check intake air leaks and PCV hose connections.

5. Check function of fuel injectors - listen to each fuel injector operating sound.

6. Check MASS AIR FLOW SENSOR.

7. Check A/F SENSOR.

Engine - DTC's P0300/P0301-P0304 Set|Page 2275 > < Engine - DTC's P0300/P0301-P0304 Set|Page 2273