weird fuel injection /headlight porblem, need help
alright this is the weirdest thing I have ever seen.
First, I have a 78 CJ7 with a Howell FI kit on the 258 and have been having problems for the last 3 months or so. Runs bad, surges, exhaust smells funny (think rich). Overall no power. I have replaced the FI wiring harness, all the sensors, the fuel pump, the fuel filter, coil, ignition module, plugs, rotor, checked cap, FI computer, chip in the computer. But it still runs, I can drive it everyday.
Heres the weird part. when i first get in the Jeep and turn the key to "on" and then turn the FI on with the rocker switch I have on the dash "switched power" the fuel pump primes like it should (jeep not running). But when I turn on the headlights the fuel pump primes again, and will continue to prime everytime you turn the lights on. Also when I am at idle with the jeep running and turn the lights on the very slight "huM' from the tank (fuel pump working) changes.
I dont see how the headlights and the FI are connected. Anyone have ANY ideas, I am at a total loss. There is no- where the FI and Jeep are connected other than the rocker switch, the coil, the solenoid and grounds. Help me out here guys. Thanks