Subject	Fuel pump/controler going bad?
Posted by	sky z on December 22, 2013 at 10:59 AM
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Message	Some days ago my car have start to make +12 AFR on WOT it was running fine at 11.5 AFR and i log the nistune and the target AFR is around 11.3, also log some runs all the other sensors( MAF etc) are fine. Injectors, fuel filter, fuel damper is new. The fuel pump/controler and regulator are stock whit around 93k miles On cruise it runs fine around 15 AFR, On part part throttle also runs fine around 13s The TT fuel pump controler are 3 speed flow, is it possible the controler is bad only when it need max flow? or is the fuel pump that is dying? tks for any advice!
Follow Ups	Fuel pump/controler going bad? - sky z 10:59:02 12/22/13 What are your Fuel PSI readings (n/m) - njz 16:02:05 12/22/13 Re: What are your Fuel PSI readings - sky z 16:23:58 12/22/13
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