1994 lumina apv-I have a rich condition at startup
I replaced the battery on a 1994 lumina apv. I started driving to the gas station and the van develop a miss--almost like the engine was dying and starting back--heavy jerking feeling in the vehicle when it was missing. I drove it back to the house checked the coil wire, spark plug wires, found nothing wrong. When I restarted the van I had heavy black smoke and the smell of gas out of the exhaust. After 10 to 15 seconds of this rich condition the engine accelerated to around 1200-1500rpm(this is a guess the engine was running very fast) and stayed there as the idle speed. I shut the engine off, restarted it and had the same results as before. Does anyone have any suggestions on how to fix my problem?
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Here is the firing order for the 1994 Chevrolet Lumina APV Van with a 3.1 Liter engine with a distributor, and the 3.8 liter engine had the coil packs, and let me know if you need any help to understand this diagram, or if you require any further assistance.
If you havent replaced the battery I would start there. If the battery has a dead cell in it then it will effectively remove the charge that your alternator is putting out causing your vehicle to stop running because it has no power. I would jump start the car without the battery hook up and remove the cables and see if it runs that way. If it does you have a bad battery.
when you say car lost power bought a new battery.sound like alternator not charging battery.with car running your voltage at battery should be 13.5 volts or 14.5 volts it not alternators need replacing.have garage replace alternator if faulty because 1993 to 1994 cars if you disconnect battery car would lose memory causing car not to idle.the car will stall out at a stop light or stop sign whole lot.it would relearn itself but the stalling out dangerous around a lot of traffic.
if you put some start stuff like you say and start if our gas pressure good the injector dont open first do you have a check engine light when you put the key on if no check computer fuses (ECM) check it out pierre