I've been tracking issues with a 16183247 ECM ( '95 OBD1). It was running fine, and then suddenly won't work properly. I've tried everything, and am down to one last potential variable- the stock MEMCAL. I'm using a MEMCAL from the Donor car ( '95 Riviera L67), with a prom burned with a Burn1, and a Moates Adapter.

My Question: Would a bad MEMCAL cause issues with Temp readings( ECT, IAT, TRANS), Voltage Readings,Fans not running, etc? Can an L67 MEMCAL be replaced with and L27 ( NA) MEMCAL, or does the Memcal have to match the prom and engine. Hard to find L67 PCM's in the local junk yards.

Thanks