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So my car very resently has started to run all funny. When you first start it runs perfectly fine all good. Drive it for a bit and its ok but as soon as it starts to warm up completely it starts to miss and it misses untill you shut it off. Here's the funny part, if its warm and missing if you park shut it off for maybe a min say stop at 7-11 and get a pop come back out start it back up it will run good again. But again after driving for a few mins it will start to miss again and the miss does not go away. Ideas ? I'm clueless as what could be causing it. Coil is brand new, new plugs, and a new ICM are the most recent changes. But its been runing better with them for about 2-3 months its just recently just started running like this.
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Originally posted by KuruptWS6spd
1996 Firebird Formula
BBK 58mm Throttle body
SLP cold air intake with Trick Flow Elbow
Hooker Long tube headers
3" Flowmaster exhaust
Spohn Panhard bar
3.73 rear gear
Custom tuned by JET DST -
how many miles on your opti?1998 Chevrolet Camaro Z28 - 6 Speed -
What kind of coil? MSD Blaster by chance? Have you checked the o2s? Sounds like it's getting into closed loop and starts using the o2s when your misses happen.- Brian Meissen
Owner, MiFBody.com
Administrator, LTxTech.com
1994 Camaro LT1 Transplant -
357ci LT1, cammed, stalled, and driven.
2022 Camaro LT1 - "Cherry Bomb 2"Michigan FBody Meet & Greet Car Show 2022
June 4th, 2022 - 9am to 3pm!!!
The HUB Stadium, Auburn Hills, MIComment
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Sounds like it don't like closed loop to me.
VicePresident of West Michigan Firebird Club
A.K.A The Maverick
http://www.cardomain.com/ride/660128/1
93 TA Currently Under Construction AGAIN
2007 2500 Chevy Silverado Crew Cab w/ 6.0L & 3.73'sComment
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Is it throwing any codes?
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like others have mentioned, sounds like when it hits closed loop it doesn't like what the o2s are telling it. Maybe time to swap them out------------------------------------------
2004 GMC Envoy - Tuned, Airraid Intake, rest stock
2005 Malibu - Stock, anyone have a ecotec factory gm supercharger for me? lol
5th gen Camaro V6 Forums
http://www.bowtiev6.comComment
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eliminate that stuffComment
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Running a OBD car in open loop is pointless. At that point you may as well throw a carb on it. Never understood why people do that. I agree, before replacing the o2s i would check there readings and make sure its not something else.
1997 Camaro SS #2819 M6, Red, 3.42, 1 of 27, Ttops, BBK shorty headers, Flowmaster cat back, 1.6 rr, LT4 valve springs, ASAM CAI, Centerforce clutch, runs 12s, breaks 10 bolts.
http://s602.photobucket.com/albums/t...20Camaro%20SS/
1963 Plymouth Valiant Signet 200, 6.0 LS3, Carb, Rapid Motorsports Dominator 2X cam.
http://s602.photobucket.com/albums/t...uth%20Valiant/Comment
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