My son, young "Jack", and I removed the PCM (ECM) from the 91 Eldo this morning.
I am the bringer of good news !
Absolutely no evidence of damage to the semiconductors and PCB. In fact the protective coating on the PCB has no signs of overheating (melting). Nothing !
So this is good news for anyone who gets into the predicament I got into: that FI's even with very low resistance will probably still not harm the PCM (ECM). I imagine the story would be different if the FI's had completely shorted. I'm told that if one completely shorts it will shut down the engine, period.
If there are any doubts about a FI you should perform the "balance test" as detailed in the Shop Manual and using the DIC computer.
Thanks again to those who were interested for their support.
Jack
I am the bringer of good news !
Absolutely no evidence of damage to the semiconductors and PCB. In fact the protective coating on the PCB has no signs of overheating (melting). Nothing !
So this is good news for anyone who gets into the predicament I got into: that FI's even with very low resistance will probably still not harm the PCM (ECM). I imagine the story would be different if the FI's had completely shorted. I'm told that if one completely shorts it will shut down the engine, period.
If there are any doubts about a FI you should perform the "balance test" as detailed in the Shop Manual and using the DIC computer.
Thanks again to those who were interested for their support.
Jack
