[codycato1882]

2007 E93 n54 MSD80

So my wire harness that goes to the coils had a exposed wire ( didn't notice it)until it sparked while removing engine cover. Light in the car dimmed and came back on. Car wouldn't start just cranks, I scanned with MHD and had no error codes.

Someone suggested changing coils and plugs but no luck. another said dme relay I swapped tit with the fan relay no luck, but I wasn't 100% sure if that was the DME relay in the fuse box. Don't have a blue relay in ecu box.

I even checked mosfets and continuity was good. The coil wires are also good I checked continuity on all of them After I reinstalled the DME I got the following codes

29E2 -DME- Fuel injector rail, pressure-sensor signal
29F3 - Fuel low pressure sensor, electric
2ACB -DME master relay, activation
2ACC Master relay, shift delay
2CF9 Throttle valve potentiometer 1
2CFA " " " 2
2D09 THROTTLE

BEFORE I START REPLACING RANDOM PARTS CAN ANYONE HELP ME PINPOINT THE REAL PROBLEM?
if the dme is bad what's my best option in terms of upgrading to MSD81?

[JuniorB]

Coil power comes from the ECU. If no power is present, look for blown ECU fuses . As long as there are no cam, crank sensor codes, it should start if ECU power is present.

[codycato1882]

Originally Posted by JuniorB

Coil power comes from the ECU. If no power is present, look for blown ECU fuses . As long as there are no cam, crank sensor codes, it should start if ECU power is present.

thanks i found the fuse. car running now

[Parkede93]

Originally Posted by codycato1882

thanks i found the fuse. car running now

What fuse was that? having the same problem with sane codes thank you