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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Sun, Jul-08-2018, 10:00:29 PM   #11
NolliM3
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Default Re: Chasing down fault codes

How is the hose from the ICV to the elbow? A slight crack in the hose by the tip at the elbow can cause havoc and misleading diagnoses.
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Old Sun, Jul-08-2018, 11:15:17 PM   #12
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Default Re: Chasing down fault codes

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Originally Posted by NolliM3 View Post
How is the hose from the ICV to the elbow? A slight crack in the hose by the tip at the elbow can cause havoc and misleading diagnoses.


Should be ok. Every hose, hose clamp, seal, gasket of any kind is new. Damn hard to see the IVC however.


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Old Mon, Jul-09-2018, 02:44:19 AM   #13
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Default Re: Chasing down fault codes

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Keep us updated on the results of the sim removal.
I'm pretty sure the problem is the tune and the O2 sensor setup. I made a mistake when ordering the tune (quite some time ago now). I should have had the post cat O2 sensors deleted. The SuperSprint setup is catless and the rear O2 sensors sit ahead of the midpipe resonator. My guess is that is causing all the O2 sensor fault codes. I've reached out to Epic Motorsports to confirm and to see about an updated tune. I'll have them delete the SAP as well and remove the SIM.

The good news is that the second engine start, the engine ran smoother. But definitely more angry than the stock setup.
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Old Mon, Jul-23-2018, 06:03:44 PM   #14
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Default Re: Chasing down fault codes

All the issues are worked out. I fixed a small vacuum leak and that fixed the last issue. No more fault codes.

And, off it goes to the shop for the final alignment.

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Old Thu, Jul-26-2018, 09:57:45 PM   #15
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Default Re: Chasing down fault codes

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Originally Posted by JitteryJoe View Post
All the issues are worked out. I fixed a small vacuum leak and that fixed the last issue. No more fault codes.

And, off it goes to the shop for the final alignment.

Congrats!

What caused the rest of the issues?
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Old Fri, Jul-27-2018, 01:23:44 AM   #16
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Default Re: Chasing down fault codes

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Congrats!

What caused the rest of the issues?
I replaced all the O2 sensors. Also the wiring plug into the ICV has not snapped in fully so that plus the leak was likely the root of the problems.
Everything is now OK.
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Discussing Chasing down fault codes in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)