Well i fired up the car today idled a little then stalled pulled the plugs and there full of fuel. I have a Cartech Fmu i was thinking the base pressure was adjusted wrong so i was getting to much fuel at idle. Only problem is i lost the instructions Can anybody give me some ideas. Or what else can it be ? If i accelerate its fine but at idle it will backfire and stall i know i need some new plugs now because they were full of fuel.

your fuel pressure is way too high at idle. it needs to be turned down a bunch.




I was a retard, and now I'm permanently banned.

back off (lefty loosey) the silver adjustment bolt in the middle of the top...and get a cheap fuel pressure guage to stick under the hood to help with situations like this


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-Josh
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WEll today i tried to adjust the fmu nothing work so i disconnected it and the car is backfiring and stalling but if i hold the throttle open at about 2000 its fine as soon as i let off it backfires. What could it be?

Ricardo Rosario wrote:WEll today i tried to adjust the fmu nothing work so i disconnected it and the car is backfiring and stalling but if i hold the throttle open at about 2000 its fine as soon as i let off it backfires. What could it be?

by 'disconnecting' it, did you completely remove it?
is the factory fpr still hooked up? (vacuum line still connected?)


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-Josh
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i connected both of lines and removed it.And yeah the facotry fpr is still hooked up,