Limp Mode at high RPM

[Whitjct]

Update***** issue resolved- engine ground wire loose.


Had my 08 DCt out today was running fine, however at higher RPM 7k it kicked into limp mode and lit up like a Christmas tree.

Turned it off and started it back on and everything was normal, then it stalled. Started back up no issues. At one point when I accelerated in limp mode it would not go, had to pull over and turn back on.

Just had the rod bearings done last week as well.

Photos attached of codes.... any direction to go with this? I recently purchased this vehicle, previous owner (a member) advised that the throttle actuator’s were done approximately 10,000 miles ago.

Any input would be appreciated.

Last picture on this is after clearing the codes after approx 4hrs On a battery charger.

[white_4door]

maybe check engine ground to see if its tight. if something happens after a repair i always start by checking over the area the work was done

[Whitjct]

Originally Posted by white_4door

maybe check engine ground to see if its tight. if something happens after a repair i always start by checking over the area the work was done

I was wondering the same, or possibly a battery issue. Just threw it on the CTEK trickle charger to see if that has anything to do with it. I’ve read that dying batteries can cause multiple codes regarding some of these codes.

Also found out BMW has a battery cable recall I need to address.... wonder if it’s related.

[white_4door]

that recall is the battery cable going into the back of the junction box in the glovebox, can cause issues but wouldnt cause engine faults

[Whitjct]

Originally Posted by white_4door

that recall is the battery cable going into the back of the junction box in the glovebox, can cause issues but wouldnt cause engine faults

Thanks.... cleared the codes after charging for about 4 hrs...Went out stalled in the road, turned it off and back on.... turned on my flashers which started going wonky, fast flash then off then right one only then both. Got it home and ran the codes..... (see first post of updated codes).

[white_4door]

did you check the ground strap yet

[Whitjct]

Originally Posted by white_4door

did you check the ground strap yet

No, next on the list

[Scrippy]

Originally Posted by white_4door

that recall is the battery cable going into the back of the junction box in the glovebox, can cause issues but wouldnt cause engine faults

Low power to the junction box could cause the DME to be unhappy, thus engine protection. Dying batteries do cause a whole slew of check lights as devices are starving for power. I would suspect reassembling of things didn't go smooth, like an electrical plug or partially plugged in cable. The grounding is a plausible and easily forgotten point.

[jvictormp]

Something like that once happened to me. It came with a bad smell of unburned fuel.

My case was a fuel injector stuck open. Replaced all 8.

[white_4door]

you are correct and i agree but i have had a few melted ones and there wasnt a check engine light, nothing inside the car worked and it didnt start as nothing on the inside had power to operate. weak battery on cars that had either old batteries or were in storage a lot have a multitude of weird check engine lights but once it was running and the alternator was putting out i never had on in limp mode, not saying it isnt possible just havent had it happen

[Whitjct]

Originally Posted by white_4door

maybe check engine ground to see if its tight. if something happens after a repair i always start by checking over the area the work was done

Winner..... engine Ground was loose. Tightened back up and all set