tadpole1969

well today i got in there car drove to local car wash ,washed the car , then drove about 3 miles and noticed car was skipping kinda like a 02 was going bad , went little father and noticed smoke comeing from hood area pulled over poped the hood, didnt notice anything so i let it set for few minutes, then went about 100 yds on it and smoke was pouring outta hood pulled over and poped hood again and 2nd coil from front on passengers side was smokeing had melted, dunno what caused that at all ! left it at local shop to be looked at

tadpole1969

Also car was running half way desent at the time before this happened today other than it did have a slight miss

dawson1112

Loose connections on the coils, Ive heard of it before. Also trace the wires back through the harness, it could have a bad spot causing it to short out. When that happens there is excessive dwell causing the coil to be active all the time.

You can put a noid light on it and I be it stats on all the time.

tadpole1969

hey thx bro will tell them to check that monday at shop got a feelling thats been causeing my issue from day one on the idle and miss fireing

tadpole1969

also did some research on the po351 code it lite up said a short or bad pcm could be the issue

dawson1112

Yea a bad PCM coil driver can cause the coils to catch fire too, but I would suspect more than one would be doing it.

tadpole1969

well it may be more than one will know tommorow ,but when it did it i felt of the one i seen smokeing and 2 other of the coil tops on passenger side and they were very hot ,compared to others on driver side

WJL

Had this conversation before, according to JWOGG and i agree with his assessment:

"a coil will only fire after it is grounded for a period of time, (dwell), and then the ground is removed, (opened), this causes a colapse of the magnetic field in the coil of wire and induces a voltage, (spark), in the secondary side of the ignition,(spark plug).

if the coil is shorted to ground, it will not fire at all. a short to ground on the ground side of the coil will result in a dead miss on that cylinder and a direct short to ground,causing the coil to melt. it at no time will fire, (spark), at all."

tadpole1969

yeah its at shop so its their baby now to find the short, told them what code was and general info on it ,if they start saying it was my blinker fuild that was low il **** can them lol

tadpole1969

well mechanic called ,said there was two shorts in my harness that they had to fix and blew 30 amp fuse to the pcm ,thx god for fuse's or it would have gotten the pcm plus the 1 coil it did turn into soup ,all fixed