update:it was fuel pump that solve problem completely
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hi everyone.i have a v6 2008 6 speed. recently changed two primary o2 sensor and maf sensor with original ones.i have no catalytic converter.no cel or pending code on ecu.a wired acceleration problem i have experiencing is when i floor gas pedal car accelerate really good a while after this acceleration is not good as before and like something pulling car back. like it goes bad then back to good without any reason. everything is good. fuel filter is new air filter is new clutch is new. tps checked completely everything was in range and good . intake temp sensor checked. ignition system include plugs, wires, coils checked. injectors resistance checked.no misfire.cold start is perfect.no hesitation.i have noticed two thing
first:smell of unburnt fuel from exhaust specially when accelerate hard
two:engine like regain it's power for example when i stop behind traffic lights for a while after that acceleration is really good
i will be appreciated for any help or guess
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hi everyone.i have a v6 2008 6 speed. recently changed two primary o2 sensor and maf sensor with original ones.i have no catalytic converter.no cel or pending code on ecu.a wired acceleration problem i have experiencing is when i floor gas pedal car accelerate really good a while after this acceleration is not good as before and like something pulling car back. like it goes bad then back to good without any reason. everything is good. fuel filter is new air filter is new clutch is new. tps checked completely everything was in range and good . intake temp sensor checked. ignition system include plugs, wires, coils checked. injectors resistance checked.no misfire.cold start is perfect.no hesitation.i have noticed two thing
first:smell of unburnt fuel from exhaust specially when accelerate hard
two:engine like regain it's power for example when i stop behind traffic lights for a while after that acceleration is really good
i will be appreciated for any help or guess