20 Most Recent 1994 Chevrolet Lumina Questions & Answers

Could be the headlamp relay (if fitted) is stuck or a wiring fault is causing the relay to be permanently energised. Obtaining a wiring diagram would make tracing the fault easier.

Camber not adjusted properly. Get an alignment.

With the key on, do you have voltage at fuel injector, use a test light? Engine cranking do you have spark at the spark plugs? I'm just trying to see if you have more than one problem? I don't know how much testing you have done? Is there a purple wire with white tracer at ignition module, Engine cranking, there should be a dc pulse on that wire? If not, the computer won't ground the fuel injectors. In my opinion.

Had friend put OBD diagnostics to it and error code indicated fuel pump ????? No code indicates replacing any part . Indicates testing ! pressure and flow testing , voltage drop testing the electrical circuit etc... There is a check valve in the fuel pump assembly that is suppose to keep pressure in the fuel lines an fuel rail . When the check valve goes bad allows fuel to drain back into the tank. Try turn the key on an off a few times to build up pressure . The PCM energizes the fuel pump relay for two seconds at key on .

According to my database, you have no map sensor on this vehicle, but, you do have a maf sensor. The maf sensor is connected to throttle body. Your inlet air duct probably clamps to maf sensor.

Could be flooded out.Try starting it again with the gas pedal to the floor. Everytime you turn the key on, it shoots gas in the engine. When you try to start it, keep doing it for 20 to 30 seconds. Then let off. wait a couple minutes and do it again.

Try a basic tune up first. plugs, wires, fuel filter

Try adding more gear oil first. Probably low. It also could be your release bearings going bad in transmission.Try adding the oil first.

Check your Fuel Pressure and if that is good (over 40 psi)then check your Idle Air Control (IAC) Valveand seeing that it is a Mid-90's Chevy.. MAF Sensor is going bad. If you UNPLUG your MAF and see what happens.... MAF is in the Air Intake with a 4 wire...

How about fuel filter and air filter.Tune up.

disconnect battery. undo the red wire then the smaller wire. unbolt pull out and replace