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v8bait v8bait is offline
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Posts: 426
Join Date: Oct 2011
Car: E92 335i 6MT
Default 01-05-2020, 08:06 AM

Quote:
Originally Posted by drdiabetes
What do you mean by racalibrate oem sensors?? Adv need tune... does oem too??
If you want them to read accurately, yes.

Quote:
Originally Posted by drdiabetes
Updates!!!

New bosch o2 sensor + innovate heat sink.

Do some pulls in 3 geard. From 2000 to 4000 4500 rpm ok..then running lean and misfire.
Another pull and the same. Couldn't finish because the car misfire .
Last pull :
30BA dme internal failure
2C3B lambda probe in front of catalitic converted : not plugged
29CC misfire , several cilinders.
( cil 1 2 3)

The car has check engine now and running in 3 cilinders.
Bank 1 afr stack at 20 ( sensor has 20 miles)

I attached some logs... as i said i couldn't run from 2000 to 6500rpm as the car started to misfire

What do you think?? Could be the tune??? It is impossible to burn o2 sensors as me..and know I have this new issues.

I will have the ecu fixed ( injectors integrated circuits???) Then check cil 6.. (injectors / coils/ spark).

What do you think??
You had an injector mosfet fail, and need to check your O2 sensor wiring for burns/cuts etc. Alternately the failed mosfet to back 1 injectors could be why you're seeing those readings, so repair the dme first before spending more money imo. Mosfets are cheap and fix the issue permanently.

Last edited by v8bait; 01-05-2020 at 08:17 AM..
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