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      06-25-2021, 12:48 AM   #1
Ricky_Blayz
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Cel and o2 sensor codes after downpipe install

For the longest time I’ve had a cel and this o2 sensor codes from when I got catless downpipes installed and I couldnt figure out why. So be it the shop I took it to took no effort into helping me and ignored me after so I went about trying to sort it out on my own. I just couldn’t understand how all 4 o2 sensors would just go bad and throw a code like that. So after researching I found that the Intergrated Supply Module part# 7614585 shorted out and that caused all the codes. I got the part used on ebay for like $30 and it fixed all codes and cel. So far its been several weeks since my fix and the codes never came back. Im just throwing this out there for anyone who may is experiencing this and cant find any posts about it on forums or etc. Also ignore the ‘clutch switch’ code thats not related to this.

Codes: 15B202
12B102
12B202
12B303
12B404
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Last edited by Ricky_Blayz; 06-25-2021 at 11:43 AM..
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      06-25-2021, 09:08 AM   #2
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Ricky_Blayz
You get a big 3 Thumbs Up for an extra helpful post. I'm sure that will save someone a bunch of headache.

List out the codes in your post so guys can search and find this great info.
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      06-25-2021, 10:07 AM   #3
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It's posts like these that the appreciate button was designed for. Good job
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      06-25-2021, 11:46 PM   #4
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i got my vrsf catless downpipe install on my F83 and i got the CEL and o2 code as well and i couldnt pass my inspection cause of that. will that module help me pass my inspection? thanks in advance!!!
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      06-26-2021, 11:32 AM   #5
Ricky_Blayz
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Quote:
Originally Posted by WhiteF83 View Post
i got my vrsf catless downpipe install on my F83 and i got the CEL and o2 code as well and i couldnt pass my inspection cause of that. will that module help me pass my inspection? thanks in advance!!!

Well i mean if you installed catless downpipes you wouldnt be able to pass inspection bc you dont have cats. If you’re not tuned you would get a check engine light. You should’ve did your inspection before you got catless downpipes installed
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      02-13-2024, 01:08 PM   #6
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2016 bmw m4  [5.00]
i’ve had 12B102 12B202 12B302 12B402 12B5202 i replaced the integrated power supply control module and i still have these codes in thinking an 02 is bad but like said how could that be the cause for all 4? help!
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