79-s130 Posted December 9, 2009 Share Posted December 9, 2009 i have racked my brain trying to figure it out but my l28 hesitates under acceleration runs rich no matter what i tested the injectors and replaced one the maf works and there are no vacuum the tps is fine and i dont know what to do?????? Quote Link to comment Share on other sites More sharing options...
stravi757 Posted December 9, 2009 Share Posted December 9, 2009 Have you checked for vacuum leaks. Was your car running fine before. Are you getting good spark at all the plugs? Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted December 9, 2009 Administrators Share Posted December 9, 2009 There is no punctuation/capitalization. There is no MAF (stock). How do you know the TPS is fine? How did you test the injectors? How do you know it's running rich? What do you mean "there are no vacuum"? Quote Link to comment Share on other sites More sharing options...
Lazyeye Posted December 11, 2009 Share Posted December 11, 2009 Have you checked your O2 sensor? Quote Link to comment Share on other sites More sharing options...
Titus_RacerX Posted December 11, 2009 Share Posted December 11, 2009 (edited) There is no punctuation/capitalization. Oh, yes there is! ?????? Skool iz 4 dummies! Edited December 11, 2009 by Titus_RacerX Skool iz 4 dummies! Quote Link to comment Share on other sites More sharing options...
79-s130 Posted December 20, 2009 Author Share Posted December 20, 2009 what i meant was there were no vacuum leaks Quote Link to comment Share on other sites More sharing options...
79-s130 Posted December 20, 2009 Author Share Posted December 20, 2009 and fyi it is a l28e and yes i am geting spark to all cylinders Quote Link to comment Share on other sites More sharing options...
thehelix112 Posted December 22, 2009 Share Posted December 22, 2009 1. Isolate the cold-start injector as the source of the richness: Remove the plug from the cold-start injector, and/or remove the thermo-time coolant sensor plug. 2. Ensure the TPS is adjusted properly. You can do this externally with a multimeter by ensuring that when closed one circuit is closed, and that when the TPS opens beyond approximately 30 degrees, the other circuit is closed. Much more good info here: http://atlanticz.ca/zclub/techtips/tps/index.html 3. Ensure the AFM is adjusted properly. I haven't done this, but lots and lots and lots of great info from smart people here: http://atlanticz.ca/zclub/techtips/EFI&fuel.htm specifically: http://atlanticz.ca/zclub/techtips/afm/index.html and http://atlanticz.ca/zclub/techtips/afm/calibration/index.html Oh, and I think you'll find people a lot more willing to help, if you put a little more effort into your grammar and punctuation. Good luck, Dave Quote Link to comment Share on other sites More sharing options...
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