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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > misfire. cps, cylinder 1 misfire, coolant deviation



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      06-26-2014, 02:54 PM   #1
weareweird69
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misfire. cps, cylinder 1 misfire, coolant deviation

Car was running fine this morning. Got in it this afternoon and it started running like crap. 2A9A, 2E81, and 29CD are the codes I get.

Car has I think 77,000 miles.

Tips or suggestions?

Need to get this fixed ASAP

Thanks#
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      06-26-2014, 03:07 PM   #2
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It's an 06 330xi. Didn't know if my signature showed
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      06-26-2014, 03:10 PM   #3
cialz
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try plugs and coils first.
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      06-26-2014, 03:18 PM   #4
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That doesn't explain the coolant or cps? I'm sure it can help on plugs and whatnot. But I dont want to just throw parts at it
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      06-26-2014, 04:14 PM   #5
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I was posting on my phone, from work earlier....

Wife had the car.

Anyway, I believe the water pump may be going out of it. Since it threw the code.

Im going to do some inspections of the VANOS etc.

Im curious if the VANOS or CPS is causing the misfire since its not reading correctly.
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      06-29-2014, 03:12 PM   #6
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After digging in. Number 1 coil died. Cleared codes. Swapped CPS from intake to exhaust. And cylinder 1 coil to cylinder 2. Cleared codes. Got a number 2 misfire. Replaced coil. Cleared codes. Never got another code back.


Figure that out
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