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97chevy lumina 3.1 code p1200

Is running too rich is trowing fuel from exost

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2 Answers

My Chevy lumina is running rich and cutting out at cruising speed also rough idle please help


tun the fault codes
could be injector/s , seals/ HO2S , air leaks

Apr 09, 2018 | Cars & Trucks

1 Answer

Air bag light code dodge ram 2002 p1200 loss of ignition/ run-start what does it mean?


well p1200 is a fuel pump issue you should check your fuel pump but first change your coolant temp/sensor then if that dont work change your fuel pump,and before you change the fuel pump check the connections at the pump

Jul 14, 2014 | 2004 Dodge Ram 1500

1 Answer

1995 chevy luminga wont stay runing, and I have replaced a coil, throttle positioning sensor, ignition moduel, and plugs and wires.


run fault codes and check for HO2S and O2 sensors problems . Check fuel pressure and injectors for operation.

Apr 19, 2014 | 1995 Chevrolet Lumina

1 Answer

91 Lumina won't stay running; see lots of same question for same car but no problem solvers....Please help.


On electronic fuel injection pumping an pumping an pumping the gas pedal does nothing without the engine running ! Pushing the gas pedal to the floor will cause the PCM - engine computer to go into clear flood mode .

You have some very interesting ideas here , but not really how it works or is !

The vehicle will go into closed loop fuel control when the engine coolant temp reaches a definded temp an the O2 sensor get hot.

She would run for a couple minutes and die which is open loop when running, closed loop is when the sensors kick and it would die. Pulled spark plugs, they were black meaning no spark. Can only be 2

Black spark plugs indecate a rich condition , over fueled , wet spark plugs indecate no spark .

Mar 07, 2017 | 1991 Chevrolet Lumina

1 Answer

1990 chevy lumina, idling problem...stalling...too rich


Stalling and running rich. I have seen this before on a Camero. The fuel pump was weak. Not making enough pressure. This caused the fuel injector to DRIP gas instead of SPRAY gas. This caused the fuel to flow into the cylinder in a liquid form, and it did not burn well. We put in a new fuel pump and the car came to life. Good luck.

Dec 27, 2017 | 1990 Chevrolet Lumina

1 Answer

My chevy lumina starts but once it warms up it dies and wont start changed coils and module what else could it be?


you probably have a faulty temperature censor. if the car stalls when its hot and acts like its running out of gas than its the temp censor. what this censor does is it will tell the main computer what to make the air fuel mixture and if its telling the computer (ECM) that the car is too rich than it will lean the air fuel mixture so far that it will cause the car to stall.

Jan 10, 2010 | 1992 Chevrolet Lumina

1 Answer

1991 chevy lumina will hardly run


DTC - 22 Throttle position sensor error (signal low), is tps connected?
DTC - 23 Intake air temp sensor error (low temp indicated) check and make sure the sensor is connected
DTC - 43 Knock sensor error, ignore this for now, will not cause rich run.
DTC - 53 System voltage too high, check reference voltage from PCM, it should be around 4.5 Volts, this could be the cause of all your problems, the computer will need to replaced almost for sure.

Oct 06, 2008 | Chevrolet Lumina Cars & Trucks

1 Answer

1999 vw jetta 2.0


Sounds like two problems. P0300 and P0303 are possibly spark plugs. They could be a coil pack but I'm leaning toward a spark plug problem because of the other two codes - they're indicating O2 sensor problems. If the O2 sensors are screwed up, the car reverts to preprogrammed, rich fuel maps that send excessive fuel through the engine. The reasoning is, if the ECU can't trust the O2 sensors to determine how much fuel to burn optimally, it'll pump a bunch of extra fuel through the engine to keep it safe. Having too little fuel (aka running lean) can destroy an engine, so the ECU plays it safe and runs rich (too much fuel) instead. The consequences of rich running are relatively minor compared to lean running, but can and do tend to create excessive carbon buildup on the catalytic converter and O2 sensors, as well as fouling spark plugs.

First thing to do though is to swap the wires on your coil packs and see if you end up with a misfire code for the same cylinder #3. If you do, then it's the plug or wire. If it moves, it's the coilpack. Replace whichever part is faulty. You'll probably need oxygen sensors too, before you can clear all the codes.

Aug 27, 2008 | 1999 Volkswagen Jetta

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