Misfiring...tried everything
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Teching In
Joined: Jun 2010
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Misfiring...tried everything I'm getting really really bad misfires, it's bucking like a bull getting shot at. It doesn't seem to do it until the car gets hot. After either idling or driving for about 20 minutes it will start to misfire and it progressively gets worse. If I keep driving it gets to the point where it hardly drives at all.
I've replaced the ignition coil, plugs and wires, cap & rotor, ICM, and fuel pump...I haven't actually replaced the entire opti itself, but before I spend $500+, is there anything else it could be?
Oh, and it doesn't throw any codes at all.
When it gets really really bad, the rpms start to go crazy at idle (anywhere between 1000 and 1500, moves around alot), and it backfires alot...sounds like popcorn. -.-
I've replaced the ignition coil, plugs and wires, cap & rotor, ICM, and fuel pump...I haven't actually replaced the entire opti itself, but before I spend $500+, is there anything else it could be?
Oh, and it doesn't throw any codes at all.
When it gets really really bad, the rpms start to go crazy at idle (anywhere between 1000 and 1500, moves around alot), and it backfires alot...sounds like popcorn. -.-
Last edited by Spencer51X; Jul 31, 2010 at 02:50 PM.
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Joined: May 2010
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From: Winnipeg,MB,Canada
crazy..im having the same problem except for the backfiring...i changed wires and plugs too, last 2 days mine has been fine but i know its prob gonna act up again..when u put ur foot on gas pedal does it feel like its not giving u full power? cuz when my opti went last time thats how it felt and mines feeling same way again..i thought it was my transmission goin last time but it was the opti..ive been told ignition problems can mimic tranny problems...when ur car does this does ur battery gauge kinda go wonky? lol
Thread Starter
Teching In
Joined: Jun 2010
Posts: 25
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Yeah, looks like I'm gonna have to replace the opti...urghhhh, not cheap. -.-
@Raven, it depends how long I drive it for, the longer I drive the more and more it misfires. At first all my gauges are fine, then after a little bit, every one of them seems to go psycho. Oil, battery, rpms, everything is all over the place.
@Raven, it depends how long I drive it for, the longer I drive the more and more it misfires. At first all my gauges are fine, then after a little bit, every one of them seems to go psycho. Oil, battery, rpms, everything is all over the place.
