After getting a ton of cels last week, i bought a new asd/fuel pump relay set, coolant temp sensor, checked all wirings and so forth, got rid of all cel's and now im here. Car runs fine in the lower rpm range, around 35-45mph. Once i hit 55mph the car will slowly start to miss and it gets worse as i go. The wierd thing is that the exhaust note never changes, i cant hear the miss through the muffler, which i thought would be possible. Im figuring im running lean because i dont have smoke from the tailpipe. I also did the clutch check to make sure that wasnt the culprit, in fifth gear the car bogs but still accelerates without slippage. I know the filter is cheap, but i dont want to waste any more cash on this without a little backup. Fuel system wise, ive replaced everything but the filter in the past 10xxx miles. Sensor wise related to fuel, ive replaced the iat, coolant temp sensor, o2, etc.
Aem Cold Air AFX 55mm TB Fidanza Cam Gears NGK Wires AFX UDP Greddy Header Gutted Cat Greddy Evo Catback Energy Suspension MMI Eibach Sportlines Tokico Blues...always more to come
I hope its just not a bad spark plug or wires, ie. cracked insulator (very possible) or,wires arching and shorting out on the head or something like that.
#77538, "RE: could it be a clogged fuel filter?" In response to Reply # 1
well the plugs are brand new one range hotter ngks and the wires are semi old. If the filter doesnt work then they are next on the list.
Aem Cold Air AFX 55mm TB Fidanza Cam Gears NGK Wires AFX UDP Greddy Header Gutted Cat Greddy Evo Catback Energy Suspension MMI Eibach Sportlines Tokico Blues...always more to come
#77539, "RE: could it be a clogged fuel filter?" In response to Reply # 2
what are the plugs gapped at? try 0.045 or so, if that doesnt fix it, PM me i have an extra set of stock plugwires. my car did the same thing, i replaced the wires and voila.
#77556, "RE: could it be a clogged fuel filter?" In response to Reply # 3
Yeah I would suspect a plugwire since the miss doesn't happen all the time. If it did I would say it was your filter. The thing is that since it is at such a high RPM 99% of the time a miss then is an ignition problem. And most of the time it will be a wire.
#77559, "RE: could it be a clogged fuel filter?" In response to Reply # 4
awesome, i'll take you up on the plug wire deal just to make sure its not that. I really was leaning towards the wires but the fuel filter was cheaper. Hit me up with a pm or aim so i can send you a paypal for the wires. Thanks mang
Aem Cold Air AFX 55mm TB Fidanza Cam Gears NGK Wires AFX UDP Greddy Header Gutted Cat Greddy Evo Catback Energy Suspension MMI Eibach Sportlines Tokico Blues...always more to come
#77562, "RE: could it be a clogged fuel filter?" In response to Reply # 6
turby, i have ngk 8mm's but ive removed them so many times ive probably torn something on the inside. The boots at the coil actually slide up and down now and you can see where they have come unglued.
Aem Cold Air AFX 55mm TB Fidanza Cam Gears NGK Wires AFX UDP Greddy Header Gutted Cat Greddy Evo Catback Energy Suspension MMI Eibach Sportlines Tokico Blues...always more to come
#77601, "RE: could it be a clogged fuel filter?" In response to Reply # 7 Jul-13-04 07:41 PM by turbo8u
Originally posted by EclipsedChef turby, i have ngk 8mm's but ive removed them so many times ive probably torn something on the inside. The boots at the coil actually slide up and down now and you can see where they have come unglued.
dude that wire...if its exposed a little it'll ground out to the inside of the head...that might be why its a random misfire. wire bounces around on a bump or by engine torque and it grounds it....i dunno. im just talkin shit, its worked before
edited because my fingers are much fatter these days...im high...its dark...and i cant spell
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96 Black ESi 91 Red TSI AWD (RIP) 02 WRX
"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"
Aerospace Certified TIG welder for Precision Castparts in Portland, OR.
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my car did the same thing, i replaced the wires and voila.
