My brother called me to come pick him up. His 91ish Accord with 263,000 miles wouldn't drive right. I got in it and diagnosed a stuck accelerator. The throttle cable did not seem top be stuck but the pedal itself was giving some resistence.

I told him to drive it home and just apply a little pressure to the accelerator.

A few miles up the road, we are almost home, and all of a sudden the car starts laying a cloud of smoke out the exhaust. I flash my lights for him to pull over. He gets it parked and as I pull up I can hear it pinging off the rev-limiter.

Apparently, all of a sudden the RPM's just climbed to the top. He shifted to neutral with no effect. I again moved the throttlebody and could feel no resistence. I pulled on the accelerator to make sure it was not stuck and it would not come up any further. So, I started the car and it automatically just revs right up to redline. I shut the car off, and repeat. Same problem.

He also has done a lot of wiring work with a system he's put in. He's not a professional and his wiring probably has problems. His car has been having a lot of problems maintaining its electrical systems. The lights will dim tremendously at idle, his guages will blink randomly, his temperature gauge will suddenly climb to Hot and then down, its just a real mess.

Any ideas on the problem?