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03-12-2023, 01:31 PM | #1 |
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Help with Catless Header Install!
I have a 06 BMW Z4 3.0si, I installed catless headers this weekend, I expected a CEL/SES until I get a tune. However I noticed when getting on the gas hard I noticed it cuts TSC/brake/ABS lights to yellow giving me none of the three. Is this normal until I get a tune that deletes the CEL/SES for the O2 sensors? Ive tried looking around 3/1 series N52 forums but can’t find anything on the yellow brake/tsc/abs light issue I’m having. Thanks!
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03-12-2023, 09:02 PM | #2 | |
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Drives: Z4 M, X5, GX460
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Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
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Assuming you don’t already have a tune (or courtesy of previous owner) or o2 simulators installed, the CEL will eventually come on. Which headers did you go with? |
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03-13-2023, 12:37 AM | #3 |
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Went with AA reps/clones - currently not bolted to the rest of my exhaust which that should be fixed tomorrow. I do already have a CEL/SES
And Im getting dash lights for all three. See the attached vid https://youtube.com/shorts/g-p3G-yNfW0?feature=share |
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03-14-2023, 10:11 PM | #4 |
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An update on this :
Midpipe was modified and now fits to the new headers. CEL/SES light went away which was a surprise and on hard pulls the yellow tsc/abs/brake lights do not come on anymore. |
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