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01-22-2017, 11:08 AM | #1 |
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Euro headers
I had these on for about 4 years. Have not been driving the car much in the last 2.
Passed Cali emissions 2 years ago, no issues. Now I have persistent error 29F5 but not CEL. Resetting code means, another round of drive cycle etc... Any thoughts? New O2 or Fuel delivery?
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01-22-2017, 12:37 PM | #2 | |
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It will be either of, bank 2 O2 or the CAT itself. Did you pull any other codes? I had one primary O2 go bad at 32k miles, but I also had other O2 codes.
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01-22-2017, 04:56 PM | #3 | |
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This is the one that pops up consistently. In one instance I had a EGT code, but when I cleared it nothing else came up Maybe I replace the O2 and the plugs.
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01-28-2017, 09:57 AM | #5 | |
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NA oem cat2's with Euro like placement.
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01-28-2017, 06:28 PM | #6 |
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Oh that's probably your problem. The North American cats in section 1 are very short so they don't do a very good job on their own. The Euro cats in section 1 use twice as much cat material. You could try to add a non-fouler to trick the O2 sensors.
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01-31-2017, 12:51 AM | #7 | |
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NA specs are here http://www.realoem.com/bmw/enUS/show...diagId=18_0664 Similar parts can be found on lovely sites like this: https://www.amazon.com/Bosch-15168-O...ype=automotive I haven't looked for the others recently.
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01-31-2017, 07:44 AM | #8 |
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The NA ones work fine with the harness extended, although one is a little tighter than the other.
I'm using the original with no problem, but if I was to replace, I would just get the longer NA one for both. bTW when I replaced my primarys I used aftermarket, not OE. They work fine.
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01-31-2017, 11:43 PM | #9 | |
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I'm replacing both O2 sensors and the EGT, then plugs and a fuel clean to see how it goes. fingers and toes crossed.
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