My 86 Daytona has been rewired for a SMEC, 89 Turbo ll. Last month the voltage regulator part failed and a external voltage regulator mod was done. Saturday I wanted to go for a drive. The car was hard to start, the engine was cutting out (coil driver circuit would drop out), tach would drop to zero, radiator fan would monetary come on, and the power loss light would flicker after code 55 was displayed.
At first I thought it was a bad ground, power connection, or something shorting out. After checking all that and coming up with nothing. I swapped in a 89 Turbo l 2.5 auto transmission SMEC that I got from a pick n pull JY. With that SMEC the car ran fine. So my question is there anybody that can repair these SMEC? I would like to keep the stock tune. Thanks, Marc.