AFE DP's installed, car now running terrible (JB3)

Spun Crankhub · 06-18-2012, 03:16 PM

I knew the DP install would throw a code, but had no idea it would affect drivability. Do I need to upgrade my tune to the JB4 with the o2 fix? What have you guys experienced? Thanks.

BlackBB6 · 06-18-2012, 03:17 PM

Are the sensors in the right spots? That seems to be the most common problem after DP installs.

BoostAddict · 06-18-2012, 03:21 PM

Quote:

Originally Posted by BlackBB6

Are the sensors in the right spots? That seems to be the most common problem after DP installs.

This.

Make sure the grey wire is in bank 2 downpipe.

rader1 · 06-18-2012, 04:01 PM

Quote:

Originally Posted by BlackBB6

Are the sensors in the right spots? That seems to be the most common problem after DP installs.

Quote:

Originally Posted by ***********

This.

Make sure the grey wire is in bank 2 downpipe.

+1
Also, be sure the clamps arent interfering with the WG actuators

Spun Crankhub · 06-18-2012, 05:48 PM

THANKS GUYS, got it. Pulled engine cover, found where pre-cat 02's were plugged in, and switched them up. It's funny that when I was reinstalling o2's to the AFE's I had labeled front and back on o2's, but the sensor I marked as front would not reach the bung on the front AFE dp, so I automatically assumed I had marked the sensor wrong, and second guessed my labeling. Apparently the shape of the AFE's is different enough that you have to go under the hood and free up some slack along where the pre cat o2 sensors run, around the engine.

BQTuning · 06-18-2012, 10:09 PM

Quote:

Originally Posted by MontegoChris

THANKS GUYS, got it. Pulled engine cover, found where pre-cat 02's were plugged in, and switched them up. It's funny that when I was reinstalling o2's to the AFE's I had labeled front and back on o2's, but the sensor I marked as front would not reach the bung on the front AFE dp, so I automatically assumed I had marked the sensor wrong, and second guessed my labeling. Apparently the shape of the AFE's is different enough that you have to go under the hood and free up some slack along where the pre cat o2 sensors run, around the engine.

Thanks for the input on this

Spun Crankhub · 06-21-2012, 05:00 PM

Just a heads up, stating the obvious, the o2 sensors are different. Different wiring colors, and one has 5 and one has 4 wires.

06-18-2012, 03:16 PM	#1
Spun Crankhub Major General 1008 Rep 5,151 Posts Drives: 15 F82 SOLD Join Date: Feb 2012 Location: San Jose, CA iTrader: (66)	AFE DP's installed, car now running terrible (JB3) I knew the DP install would throw a code, but had no idea it would affect drivability. Do I need to upgrade my tune to the JB4 with the o2 fix? What have you guys experienced? Thanks.
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06-18-2012, 03:17 PM	#2
BlackBB6 Lieutenant 66 Rep 554 Posts Drives: E92 335i 6MT Join Date: Oct 2011 Location: Dallas iTrader: (2) Garage List 2008 BMW E92 335i [8.00]	Are the sensors in the right spots? That seems to be the most common problem after DP installs.
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06-18-2012, 05:48 PM	#5
Spun Crankhub Major General 1008 Rep 5,151 Posts Drives: 15 F82 SOLD Join Date: Feb 2012 Location: San Jose, CA iTrader: (66)	THANKS GUYS, got it. Pulled engine cover, found where pre-cat 02's were plugged in, and switched them up. It's funny that when I was reinstalling o2's to the AFE's I had labeled front and back on o2's, but the sensor I marked as front would not reach the bung on the front AFE dp, so I automatically assumed I had marked the sensor wrong, and second guessed my labeling. Apparently the shape of the AFE's is different enough that you have to go under the hood and free up some slack along where the pre cat o2 sensors run, around the engine.
	Appreciate 0 Quote

06-21-2012, 05:00 PM	#7
Spun Crankhub Major General 1008 Rep 5,151 Posts Drives: 15 F82 SOLD Join Date: Feb 2012 Location: San Jose, CA iTrader: (66)	Just a heads up, stating the obvious, the o2 sensors are different. Different wiring colors, and one has 5 and one has 4 wires.
	Appreciate 0 Quote