ktmp Posted September 2, 2008 Share Posted September 2, 2008 My z is hard to start unless it's warm. It backfires if I give it too much gas off of an idle and seems to run best at higher RPMs. I still need to change the cap, rotor, and plug wires but I just changed the plugs out. Where should I start? THANKS Quote Link to comment Share on other sites More sharing options...
woldson Posted September 2, 2008 Share Posted September 2, 2008 Are you familiar with the cold start system on your car? Quote Link to comment Share on other sites More sharing options...
ktmp Posted September 3, 2008 Author Share Posted September 3, 2008 not really. I don't know much about the injection system on these cars. Quote Link to comment Share on other sites More sharing options...
woldson Posted September 3, 2008 Share Posted September 3, 2008 Search efi bible, this will give you the straight skinny on a tremendous of understanding for our cars:) Quote Link to comment Share on other sites More sharing options...
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