03-24-2015, 10:19 AM | #29 |
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I honestly think that faulty o2 sensors are causing everything. P015d is delayed o2 response which can make my car to run lean causing it to overheat. There is no way I have a clogged cat, i checked them a month ago and i don't have any sort of loss of power or anything. Backfiring can also be linked to P015d because the car is confused with gas/air. Ill fix the o2 sensors and have my shop run diagnostic and if it still has problems, I will put stock cats on and take it in to the dealer.
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03-24-2015, 10:22 AM | #30 | |
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03-24-2015, 10:35 AM | #31 |
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http://www.totalcardiagnostics.com/s...their-meanings
Just found this. According to this list the P015 is relates to camshaft position "Timing over-retarded(bank 1)" The important thing to do is to find which system is the problem and which is the symptom. Probably the easiest thing to check would be to remove the cats and inspect them. It is possible that they could both fail at the same time, but highly unlikely, unless failure was caused by something upstream. If possible, put on the stock cats, and see what happens. If the cats are the problem, then the 015 is the ecm pulling timing to protect the engine and the amount required is exceeding it's parameters. The overheating and backfire could then be due to the excessive backpressure in the exhaust manifold. This could cause the cylinder pressures to skyrocket as well as the heat due to exhaust gas still present. However, the fact that both catalyst banks are reading below threshold, really points upstream. It is just so unlikely that both cats, or even sensors would fail at the same time, if that is the cause. Now, add that you have physical, mechanical symptoms. Overheating and backfire. These types of things are not typical of faulty sensors. Sure the engine may not run correctly when these things fail, but rarely, if ever, would their failure lead to an overheat condition or even backfire. There almost had to be a part failure going on. If it were me, and my car was under warranty, I would put the stock system back on, and run it into the dealer. The real issue you may run into is that any savvy technitian might see that the stock cats had been removed. I also reserve the right to be wrong, as I am not a professional. Just coming from my own shade tree knowledge base and experience with some info thrown at me from a brother who has done this for a living for a very long time, on GM vehicles. |
03-24-2015, 10:55 AM | #32 | |
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03-24-2015, 12:18 PM | #33 |
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Something is causing it to pull timing. That will make it run hot.
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03-24-2015, 01:13 PM | #34 |
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03-24-2015, 01:29 PM | #35 |
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I would be willing to bet you have a plugged catalytic converter. If you have a neighbor that doesn't like you, I would also check for a "banana in the tailpipe"!
The slow 02 sensor is because the exhaust isn't flowing out that side, causing the sensor to appear slow.
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03-24-2015, 04:17 PM | #36 | |
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04-06-2015, 01:54 PM | #37 |
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Did you ever get this issue figured out?
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04-06-2015, 02:18 PM | #38 |
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Rotten eggs, definitely clogged/plugged cats. Whatever the OP thinks his issue is, that rotten egg smell has only come from one place on any car I have ever owned...
Last edited by Criticalmass; 04-06-2015 at 02:31 PM. |
04-07-2015, 10:15 AM | #39 | |
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Many code readers will display codes in three number format, so it would read "P015" which would translate to "P0015". If it were the slow response code, your code reader would read "P150 or P151". Unless of course in your post you meant to type 150 or 151, simple mistake, but two very different things. |
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04-07-2015, 12:25 PM | #40 |
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I took my car to my shop and they disassembled my cats and they were fine. He replaced my O2 sensors because I screwed them up when installing the cats. Oddly, that seemed to fix all my problems. I've had the car back for a couple weeks and I have not heard bubbling, smelled anything, or felt anything abnormal like I used to. One time the car got up to 214 degress in stop n go traffic on a hot day but that's normal. The car runs at 198-205 degrees all the time now. Also my P015D code is gone.
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04-07-2015, 12:42 PM | #41 |
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04-07-2015, 02:15 PM | #42 |
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