If i turn my car off for like 5-10 min and then go to drive my exhuast note is kinda funny and the car had about 1/2 power and misses like a bitch. It has only been doing it in the hottest part of the day and when I get gas at QT? It also seems to smell when it misses too but no smoke of any kind? and it runs a bit warmer when it does that. Could it been that my car is pinging? I have been using 91 octane and everything in the fuel system is new. I dunno whats wrong because it runs fine when its cool outside. The car has a chip in it.
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Could be a bad O2 sensor, bad FPR, or maybe the charcoal can purge valve, or and I'd check this first your cold start valve is stuck.
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I replaced the Cold start valve last year and the FPR last month. but I will try and unplug the CSV and see how it runs.Comment
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I am going to throw this out there because I think it makes sense based on your symptoms. Check your cat converter. A plugged cat will kill your performance and make the engine run warmer due to increased back pressure. You also mentioned the change in exhaust tone which supports my theory.Comment
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What is QT? You said it only does it when you get gas there. Could be H20 on the gas.
Sarcasm is a body's natural defense against stupid.
When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's £3.95 per minute.
"My mother never saw the irony in calling me a son-of-a-bitch." Jack Nicholson"
Old age and treachery will always overcome youth and skill.
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QT=Quick Trip, a common gas station in the Mid-West
I am fabbing up a new exhaust this weekend, hopefully. I will see if that fixes it, I have replaced almost every sensor except the o2 sensor and the AFM. I would have replaced the O2 sensor already but I am waiting to put it in the new exhaust.
Thanks for the input guysComment
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