BMW E90 M3 - Lean Lambda at WOT

[SyvecsM3]

Hey fellas,

I apologize as I can't provide any data logs because my ECU is pass controlled and I can only view errors.

So the setup is as follow :
S65 V8 - 6MT - Supercharged -E85 - Meth

I'm having an issue with pre cat o2 sensors dying in every 2000kms or so and it always one of the banks & never both sides for some reason, and I'm asking whether this might mean that my S6+ unit is faulty or not

the car won't through an error till I hit WOT, and when the error is cleared it will drive normal till the next time boost goes beyond 0.2bar at full throttle.

I'm really sorry as I don't have any tunning background whatsoever and I'm trying to explain the problem as I experience it driving my car ... I know for sure o2 sensors shouldn't die every 2000 km and I'm starting to think that I might be having a faulty ECU ... can I have your feedback on this, please?

[stevieturbo]

A faulty ecu is unlikely.

But best advise is get it to your local Syvecs dealer/tuner who can look at it.

What sensor is it you are using ?

[SyvecsM3]

Thanks

Im using OEM BMW sensors

[SyvecsM3]

Fixed - bad sensor


Outstanding support from SYVECS team in Dubai ..