Hyundai Accent 2003 no spark and no headlights come back on after stopping for gas. Engine cranks over. Coil and battery seem to be ok. Everything else comes on. Checked all sensor connections since we just installed a new transmission the day before.

there are two sensors on the transmission. Both of them detect gears moving. One connects to the speedometer, we know which one. Is it possible for the other one to shut down the ignition and the headlights? The motor still cranks over. No spark.Maybe it is another module or computor problem? there are two sensors on the transmission. Both of them detect gears moving. One connects to the speedometer, we know which one. Is it possible for the other one to shut down the ignition and the headlights? The motor still cranks over. No spark.Maybe it is another module or computor problem?

All fuses were checked. All fuses were checked.

of course we checked all fuses. It probably wouldn't crank over with the ignition fuse out. of course we checked all fuses. It probably wouldn't crank over with the ignition fuse out.

I didn't say the coil is working. I meant it is not the problem. The coil only shows one spark when engine starts cranking, and one spark when it quits cranking. The coil wires all have power with the key on and not cranking.It is like a computor won't let the engine run or the headlights come on because it senses a major problem.

Thanks for trying. Pete. I didn't say the coil is working. I meant it is not the problem. The coil only shows one spark when engine starts cranking, and one spark when it quits cranking. The coil wires all have power with the key on and not cranking.It is like a computor won't let the engine run or the headlights come on because it senses a major problem.
Thanks for trying. Pete.