colin h Posted January 13, 2009 Share Posted January 13, 2009 hi ive got a 3.9 lpg disco its runing fine on gas but on petrol it runing rich and if you unplug the airflow meter nothing happens any one had this problem ? i Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 14, 2009 Share Posted January 14, 2009 Hotwire diagnostic manual, in the tech archive. Rich running could well be a dodgy coolant temp sensor. Quote Link to comment Share on other sites More sharing options...
ThreeSheds Posted January 14, 2009 Share Posted January 14, 2009 Hotwire diagnostic manual, in the tech archive. What he said! /\ /\ It worked for me It's best to follow the sequence of the tests pedantically rather than just jumping in and thinking 'oh I know - it's THAT sensor'.. don't ask how I know Also - I think that unplugging the AFM (or any of the sensors that feed into the ECU) while the engine is running might register a fault code which will need clearing down by switching off and disconnecting the battery for 30 secs. HTH Quote Link to comment Share on other sites More sharing options...
Traco Posted January 14, 2009 Share Posted January 14, 2009 Check your thermostat. Should be 88C. Enrichment doesn't cut out until engine reaches 80C. Quote Link to comment Share on other sites More sharing options...
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