Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Make sure the fuel pump fuse (under hood electrical center) is good & there is voltage on both sides of the fuse.From here the voltage travels to the pump relay on the orange wire & goes from there to the fuel pump on the gray wire.The computer energizes the relay to pass current when the ignition is first turned on for 2 seconds.
the fuse is good ive also replaced the relay. i can get the car to run by a wire put a 12 volt termanel thats on my fuse box under the hood and the other end of the wire to a fuel pump wire (red with a black connector) by the fuse box.. before this all started the car had 2 codes p0200 and p0300 the car would coming to a stop would shake back and forth and on a green light itd fall on its face, i dont know if those codes would have any effect of what the problem is now? also when i started the car with the 12 volt source and that wire. the fan kicked on and wont shut off untill the motor stops running. maybe a PCM problem?
It is always possible,but make sure you have current going through the fuse & relay & not a bad connection there stopping the current flow.
The P0200 is an injector control circuit usually caused by a shorted fuel injector.The P0300 is a missfire code which may have been set from the other.You will need to recheck once you get it started.