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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > PROcede weird problem, V3, most likely adaptation related...



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      07-03-2008, 04:52 PM   #1
dzenno
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PROcede weird problem, V3, most likely adaptation related...

Sent an email to Shiv but got no response yet. They're probably busy so I thought I'd share it here:

Email to Shiv from yesterday:
"I installed V3 last Friday, no issues until today. What was different
today than ever before is that I just got my AE catless exhaust
installed. I also have UR catless DPs. I went for a quick cruise this
evening and did some high/low boost runs. At one point, not sure if it
was low or high boost map (think it was the high boost one), when i
hit the gas in 3rd gear going about 70-80, i got a feeling that the
car would start boosting and literrally a few milliseconds into it, it
would cut out boost. This happend 2 times in a row. I waited for about
10-20 seconds before flooring it again. I floored it again and got a
half-engine light (power wasn't reduced, just the light was there).

I checked for any codes and there were none. I'm
sure this code reader works as I used it before and I would see the
420/430 codes for catalytic converters before I ran with O2 simms.

I've been running with UR catless DPs and V2 and O2 simms for about
2-3 weeks now, no issues. Installed V3 and installed the O2 simms into
your harness, no issues until this evening when the half-engine light
appeared.

Do you know what this is? Could the car need more adaptation? After I
stopped and restarted the car I did quite a few more runs, the same
way, and no issues. Should I reset the ECU by disconnecting the
battery for an hour or just leave as is and see if I get that problem
again?"

Today, I've been driving it pretty hard as well, no issues so far. I didn't reset the battery.

Overall, I'm extremely happy with V3...a lot smoother than V2 and can't beat PnP. On top of that, finally I got a map for a catless setup with an open element intake loaded...car pulls like nuuuuts
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      07-03-2008, 05:32 PM   #2
Dustin Bramell
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Are you running the proper map for downpipes? If the issue has disapeared, it might have been a spot of bad gas. Keep me updated via pm please.
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      07-04-2008, 12:37 AM   #3
dzenno
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PM sent...
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