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Thread: psa for chip replacement

  1. #1
    Join Date
    Feb 2016
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    1995 840Ci, 2013 X5

    psa for chip replacement

    My frankenmotor is nearly done. It runs, albeit on 7 cylinders. I think I have a fuel injector issue. I didn't feel like ripping off the fuel rail today, so I decided to change the DME chip instead. Mark D'Silva has exactly the right chip for an M62 running on M60 electronics. Changing a chip should be an easy job, right? Well, it SHOULD be, and after reading this, it will be. The problem I ran into is that there is an uncomfortable amount of force needed to separate the two circuit boards. Wokke's procedure has you prying on the pin side of the DME to release the upper board. After futzing for an hour, I gave up. Timm has an excellent writeup, but I was still stuck at the same place. Instead of prying on the pin side, Timm recommends pushing the opposite side apart until the ribbon cable is nearly straight. Here's the problem with that method--it feels unnatural, downright dangerous. I swore I must have missed a screw or clamp somewhere, or I was in danger of breaking something. Nope. The ribbon cable is stiff and will fight you. Be brave and push that circuit board up. All done in time for tea. Thanks Timm!

    Brett

  2. #2
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    99 840ci Sport Indv
    Glad my instructions helped (written over 12 years ago when I had an E32)! Check that each of the injector connectors are correctly mated - it is so easy for them not to seat when re-fitting the overhead wiring trunks....
    Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i


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  3. #3
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