Fried ECM
Grounding ANYTHING by means of mounting bolts, as was done back in the day, for ECU, VR, tail lights, etc, is very poor design. Modern vehicles don't do this so much. When I was young the 63 -ish on through 66 or so Chivvies with part of the tail lamps in the trunk lid were a hoot. They would loose ground and do all sorts of stupid stuff. When I was at NAS Miramar, we had an ET-1 (E-6) with a 64 Chev, and I had to show him how to ground the damn tail lamp sockets
My own 63SS I had for a short time. Bought it on leave in the N end of Idaho and drove to San Diego to my new duty station, the spring of 70. Less than a year later I had a 69 383RR and about a year after that, had the 70 440-6 car
Grounding ANYTHING by means of mounting bolts, as was done back in the day, for ECU, VR, tail lights, etc, is very poor design. Modern vehicles don't do this so much. When I was young the 63 -ish on through 66 or so Chivvies with part of the tail lamps in the trunk lid were a hoot. They would loose ground and do all sorts of stupid stuff. When I was at NAS Miramar, we had an ET-1 (E-6) with a 64 Chev, and I had to show him how to ground the damn tail lamp sockets
My own 63SS I had for a short time. Bought it on leave in the N end of Idaho and drove to San Diego to my new duty station, the spring of 70. Less than a year later I had a 69 383RR and about a year after that, had the 70 440-6 car