McXJSierra
NAXJA Forum User
- Location
- CA
Hey all, new the forum and and looking for some help with a weird issue. My 93 XJ was stored outside the last couple of years, only run to move it around the property (parents). At one point they went to move it and saw smoke coming from the hood so shut it down and left it. When I came to check it out, I easily found it was the PCM by the smell and the Observation when I removed. OK, this is a bummer, so I picked up and identical one from a wrecker and threw that in. Battery was dead so had to jump it but it fired right up, good idle, died when I revved it up then let the throttle off. Battery was dead and would not charge, so replaced the battery. When I hooked the new battery up I immediately heard a loud pop and smoke started coming from the PCM again. I can't believe this is just bad luck with computers, so what could be causing this? 93 XJ 4X converted to 5 speed (I did not do the conversion).