Check your factory installed Auxiliary Battery

Daystar

Member
If you have an auxiliary battery installed in the engine compartment, make sure that no battery acid is washing down onto the ECM. I learned the hard way to the tune of $5000 when water got into the multi pin connector between the ECM and engine wiring harness and ate away the pins and socket. Now I have a sealed AGM battery, and I am going to design a cover for the ECM.
 

Mickyfin

Member
Ouch, not good, thanks for the heads up!
 

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