I need Help! someone with very good knowledge of these cars seeing how my local dealer couldnt help! here is what im working with
2002 X5 4.4i auto
Car sat dead for a few weeks then we did the timing chain job. however we didnt pull the motor out we did it like we do Audi's and took the front clip off the car. the actual timing chain job went great no issues.
get done and it wouldn't crank. so we jumped the starter Relay and ran it. Ran perfect all timing good everything powered up and ran as should.
Next we determined the key was old and lost touch with the Immobilizer. Ordered OE key and didnt do anything, scan tool only listed 1 key and wouldnt recognize any, so off to the dealership. New EWS installed and coded Still no start with key.
we then determined the ignition switch wasn't powering up the small wires in the front closest to the column so we jumped starter relay again and drove back to the shop.

So here we sit.. The only issue i can see is the scanner(snap on) under EWS is telling me the car thinks it is in gear or reverse and NOT park or nuetral... today we tested the PRNDL switch and everything tested 100% and is going back to the DME and trans Comp. somehow something is telling the car its not in park. im not sure if we missed a connector somewhere under the hood or when pulled the front clip or what..We can jump the starter relay and drive the car fine but cannot start with key and want it fixed right!
PLEASE ANY HELP WOULD BE AMAZING! im in the syracuse ny area and would even pay someone to fix this darn thing at this point.

only related code i keep seeing is:

code 90(with snap on) Supply voltage, pin 15
91 gong pitch
FB CAN-Bus to EGS- control unit
F5 CAN: Data error From Engine ECU

i dont get how any of this can happen from bolting on a couple chains! ugg iu have read all i can read before reaching out to XoutPost! Thanks in advance Ed