coll247 Posted August 14, 2011 Share Posted August 14, 2011 What can cause my 99 1.6 petrol to run rich thanks Quote Link to comment Share on other sites More sharing options...
H3lly Posted August 14, 2011 Share Posted August 14, 2011 Do you smell petrol in the car and what is the rpm at idle? also has your mpg dropped at all? Quote Link to comment Share on other sites More sharing options...
coll247 Posted August 14, 2011 Author Share Posted August 14, 2011 I can smell petrol some times .mpg is ok Quote Link to comment Share on other sites More sharing options...
coll247 Posted August 15, 2011 Author Share Posted August 15, 2011 My rpm is about 750 gust billow the white mark Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted August 15, 2011 Share Posted August 15, 2011 Could be a leaking gasket as to the reason you are smelling the petrol, plus the fact that it may also be sensing more air in the engine so overfuelling. check the gaskets around the sparkies and replace any as necessary, this has worked for some people. Quote Link to comment Share on other sites More sharing options...
coll247 Posted August 15, 2011 Author Share Posted August 15, 2011 Will it be the o2 sensor Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted August 16, 2011 Share Posted August 16, 2011 The o2 sensor could be faulty causing an overread which could be causing it to overfuel! Quote Link to comment Share on other sites More sharing options...
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