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08-31-2015, 08:07 PM | #16 |
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I'm having the same two codes pop up, I'm completely stock aside from a cat-back. I noticed my LTFT is in the high 30s at idle as well. I'm taking her into my buddy's shop tomorrow so he can take a look. My question; Has this problem showed up anymore since you've replaced the battery?
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09-02-2015, 06:10 PM | #17 | |
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Wow how creepy that you asked. Just a few hours ago popped P0171 for the first time since my original post. Looks like (and sounds) like a leak at the headers. Going to tighten them down and pray I don't need to swap the gasket Fuel trims are high at idle and engine braking (20%) and the O2 sensor reads super high voltages when engine braking (dunno if that's normal but doubt it). Everything is normal when cruising and accelerating. Also, the car sounds really loud when you're sitting inside. I feel like this is all pointing to an exhaust leak that has been getting worse over time. I think that if the o2 sensor was dirty/bad I'd see high trims while cruising too, right? I'll let u know what happens. |
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09-02-2015, 06:14 PM | #18 | |
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09-02-2015, 09:13 PM | #19 |
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09-02-2015, 09:16 PM | #20 | |
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09-02-2015, 09:28 PM | #21 | |
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get it sorted asap before it causes other issues. |
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09-02-2015, 09:33 PM | #22 | |
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Someone I've spoken with suggested the fuel I filled up with last week (which isn't my normal fueling station) could be the culprit, or at least exaggerating the problem. In your opinion, how likely is this to be the case? |
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09-02-2015, 10:14 PM | #23 | |
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but unless yo fueled up with E85 by mistake you should not see fuel trims ltft of 30% plus |
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09-02-2015, 10:32 PM | #24 |
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There's definitely hesitation and I'll admit that's it's been some time since I've really listened under the hood carefully, but it does seem louder and almost a muffled type of knocking that didn't sound like anything I've experienced. I know it's not unheard of that a tanker is filled with the wrong product and nobody catches it until after the fact. Lots of variables in that theory and I realize it's a bit of a stretch. Tuesday I'll be dropping the car off at the dealership.
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09-03-2015, 02:10 PM | #25 | |
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09-03-2015, 02:14 PM | #26 | ||
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09-03-2015, 09:58 PM | #27 | |
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09-03-2015, 10:01 PM | #28 | |
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you be better just looking at the AFR |
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