the car has a misfire when I wot it, at idle the is no misfire and when I accelerate slowly. It does not bog it is like one cilinder is not firing at wot, some ideas please.
misfire help
- Thread starter selbor
- Start date
do you have a aftermarket pulley on?
But it sounds like sparkblow like tommygun said.
But it sounds like sparkblow like tommygun said.
yes I running 3.00 pulley and thanks for reply
Have u checked ur plugs?
changed the plugs, no fix
the engine idle fine and it run fine until I wot it hard, it misfire all the way, could it be the oxigen sensors or the air flow meter?
I can not think of anything more, plus I am in the Dominican Republic there is no Ford dealer over here. Do not know what to do.
the engine idle fine and it run fine until I wot it hard, it misfire all the way, could it be the oxigen sensors or the air flow meter?
I can not think of anything more, plus I am in the Dominican Republic there is no Ford dealer over here. Do not know what to do.
no detonation it is a misfire, it is like when the traction control activate
What mods do you have?
What plugs are you running and what are they gapped at?
What octane gas are you running?
Are there in SES lights?
Can you describe in more detail exactly what the car is doing?
Someone might be able to help a little more if you can provide more info.
:beer:
Do you have an autotap or any type of diagnostic tool available?
What plugs are you running and what are they gapped at?
What octane gas are you running?
Are there in SES lights?
Can you describe in more detail exactly what the car is doing?
Someone might be able to help a little more if you can provide more info.
:beer:
Do you have an autotap or any type of diagnostic tool available?
mods are, 3.00 pulley, JDM flip chip, basany mid headers, steeda catback,heat exchanger
like I said, the car runs fine until I press it, sound like one or two cilinders go off.
like I said, the car runs fine until I press it, sound like one or two cilinders go off.
plugs are TR6, no lights on the board, the octane? do not know, but is the same gas I have used before and I have never heared any detonation
selbor
had very similar problem a few weeks ago. Started at the track, worse time possible. Exactly like you stated, its fine unless wot. Question: when the misfire has occured, have you satyed on the throttle? If so did the car shut down??? We had a bad PCM. no test showed to be bad, no lights, nothing. Wen changed the pcm and we were good. If thats the case you have a real problem with no Ford dealers, because to change pcm's you must have you keys reprogrammed.
had very similar problem a few weeks ago. Started at the track, worse time possible. Exactly like you stated, its fine unless wot. Question: when the misfire has occured, have you satyed on the throttle? If so did the car shut down??? We had a bad PCM. no test showed to be bad, no lights, nothing. Wen changed the pcm and we were good. If thats the case you have a real problem with no Ford dealers, because to change pcm's you must have you keys reprogrammed.
If its misfiring with no check engine light coming on i would agree to look at your PCM or possibly the chip. We have seen alot of the aftermarket chips causing premature PCM failures.
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