Cylinder 1 Misfire

STLVL M2C · 06-24-2014, 10:10 PM

Hey guys, I'm new to the forums but I usually browse through and look up certain problems I am having. I have a 2007 e90 328i n52 with 109k miles. This time I have a Cylinder 1 Misfire and Cylinder 1 Injector Open which I cannot fix. I have swapped the injectors and coils around also replaced all of the plugs. The Misfire remained in Cylinder 1 the entire time. It is completely random when this misfire occurs and ever since I have swapped out parts it has almost completely vanished. I am taking it back to the shop for diagnosis tomorrow but wanted your opinions. Thanks in advance..

STLVL M2C · 06-26-2014, 02:00 AM

Found out I have a broken Disa Valve and Cam Shaft Exhaust Sensor. Going to replace both soon and see how the car reacts..

jordan_e90 · 08-27-2014, 10:08 PM

how is your car running? i have the similar problem, and i can't find out why it is doing it.

STLVL M2C · 08-27-2014, 11:57 PM

I took it to a shop and got it diagnosed and they told me the DISA failed. I replaced both also discovers my entire injector wiring harness clips were snapped and were vibrating loose at high rpms.. Ziptied them down and no problems since then

STLVL M2C · 08-27-2014, 11:58 PM

Quote:

Originally Posted by BMW..

Quote:

Originally Posted by SocalRunner

Found out I have a broken Disa Valve and Cam Shaft Exhaust Sensor. Going to replace both soon and see how the car reacts..

How did you know it was the disa?

Got it diagnosed

STLVL M2C · 08-27-2014, 11:59 PM

Quote:

Originally Posted by jordan_e90

how is your car running? i have the similar problem, and i can't find out why it is doing it.

Forgot to quote you.. Response above

06-24-2014, 10:10 PM	#1
STLVL M2C Enlisted Member 8 Rep 32 Posts Drives: 2007 e90 328i Join Date: Apr 2014 Location: San Diego, CA iTrader: (0)	Hey guys, I'm new to the forums but I usually browse through and look up certain problems I am having. I have a 2007 e90 328i n52 with 109k miles. This time I have a Cylinder 1 Misfire and Cylinder 1 Injector Open which I cannot fix. I have swapped the injectors and coils around also replaced all of the plugs. The Misfire remained in Cylinder 1 the entire time. It is completely random when this misfire occurs and ever since I have swapped out parts it has almost completely vanished. I am taking it back to the shop for diagnosis tomorrow but wanted your opinions. Thanks in advance..
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06-26-2014, 02:00 AM	#2
STLVL M2C Enlisted Member 8 Rep 32 Posts Drives: 2007 e90 328i Join Date: Apr 2014 Location: San Diego, CA iTrader: (0)	Found out I have a broken Disa Valve and Cam Shaft Exhaust Sensor. Going to replace both soon and see how the car reacts..
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08-27-2014, 10:08 PM	#3
jordan_e90 New Member 0 Rep 7 Posts Drives: 2008 328i e90 Join Date: Jan 2013 Location: New Jersey iTrader: (0)	how is your car running? i have the similar problem, and i can't find out why it is doing it.
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08-27-2014, 11:57 PM	#4
STLVL M2C Enlisted Member 8 Rep 32 Posts Drives: 2007 e90 328i Join Date: Apr 2014 Location: San Diego, CA iTrader: (0)	I took it to a shop and got it diagnosed and they told me the DISA failed. I replaced both also discovers my entire injector wiring harness clips were snapped and were vibrating loose at high rpms.. Ziptied them down and no problems since then
	Appreciate 0 Quote