89Riv Posted May 2, 2006 Posted May 2, 2006 I've got an 89 Riviera. The trouble is it is throwing a whole bunch of random codes at me suddenly. I was wondering if you guys thought maybe it was the ECM? The codes are as follows: E034 = MAP sensor, E039 = TCC, E041 = No Cam Signal, B120 = Twilight Sentinel, B448 = Low A/C Refrigerant... Any help would be appreciated. It's actually my dad's car, I'm away at college and I've got him on the phone.... My only hope is that some of those are history codes... Thanks...
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