Need a MEMCAL
I am having a heck of a time finding a MEMCAL. The AC/Delco website has a description and GM part number, but GMPartsDirect says it has been discontinued. Wrecking yards are happy to sell me ECMs, but none have the right prom. The prom code is AYUX/AZUY/BADD, and the GM part number is 16190050. My ECM has the prom code BADD printed on it, but the prom that is currently in it is a BZCZ. I can't even figure out what this prom originally came out of.
The car has the same symptoms as bad plugs/wires/ coils/fuel filter, etc. I've checked/changed/ replaced all of this stuff, to no avail. I then found that the prom was wrong, so I want to get that right before I do anything else. I would really appreciate any assistance with this.