part throttle hesitation
03-11-2009, 08:03 PM
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part throttle hesitation sometimes at part throttle my car has a hesitation.it seems like fuel or tune related does anyone have a clue what this could be?it has a mail order tune but ive also put a diablo tune in it with the same results.thanks,joe
03-13-2009, 07:04 PM
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yeah, might be a little slow, but should work.
To check the throtte position sensor turn the key on with the engine not running. Slowly press the throttle down while reading the what the diablo says for throttle position sensor output. If there is a quick jump or dropout then there is a problem in the sensor.
To check the throtte position sensor turn the key on with the engine not running. Slowly press the throttle down while reading the what the diablo says for throttle position sensor output. If there is a quick jump or dropout then there is a problem in the sensor.
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03-14-2009, 05:10 PM
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knock is caused by many different things. Plugs fouled, carboned up valves and combustion chambers, too high of timing, lean a/f mixture, and probably more that im forgetting at the moment.