i am pulling my hair out at this point. I worked on this for a few days at the end of last season and had to put the car into storage unrepaired. I would like to start completely fresh and rechase everything down and am willing to pay someone to walk me through chasing it down and helping me with their time. The story was the following:
I took the car to the drag strip made my first pas and the car completely shut down around the 1000’ mark. I coasted the car off the track and found that the F1-26 30 amp PCM fuse was blown. I replaced it with the headlight fuse and it started right up and drove back to the pits.
I played with it for a bit in the pits and decided to attempt another pass. Car started up drove to the pits did the burn out staged launched and at the 1-2 shift the car died again. Coasted to a stop replaced the fuse again and started back up drove to the trailer and headed home. Once I got home as soon as I got the car un-strapped turn the key to run the fuse blows.
I have unplugged all the transmission sensors, oxygen sensors, cop connectors, injector connectors, maf, still no change. I have a power probe circuit tracer and it shows short to ground with the key in the on position.
I have swapped out the CCRM with no change. If the CCRM or PCM are unplugged the status light on the power probe switch to open circuit so that was of no help.
I have checked the radio RF isolaters and they are not grounded out anywhere.
I have taken the pcm out and inspected the board and see no obvious burned or bad spots and have checked each pin on the PCM to see if any were ground out and the only one showing ground is the pin that is supposed to bbe grounded.
I honestly do not know what to do at this point and am looking for suggestions on how to find the short or ground fault. I really need to get this thing running and would be willing to pay someone for their time / expertise if they can walk me through step by step and track this issue down. I am very mechanically inclined but this electrical fault has me completely stumped. Hopefully someone has the time and can help a fellow cobra owner out.
I took the car to the drag strip made my first pas and the car completely shut down around the 1000’ mark. I coasted the car off the track and found that the F1-26 30 amp PCM fuse was blown. I replaced it with the headlight fuse and it started right up and drove back to the pits.
I played with it for a bit in the pits and decided to attempt another pass. Car started up drove to the pits did the burn out staged launched and at the 1-2 shift the car died again. Coasted to a stop replaced the fuse again and started back up drove to the trailer and headed home. Once I got home as soon as I got the car un-strapped turn the key to run the fuse blows.
I have unplugged all the transmission sensors, oxygen sensors, cop connectors, injector connectors, maf, still no change. I have a power probe circuit tracer and it shows short to ground with the key in the on position.
I have swapped out the CCRM with no change. If the CCRM or PCM are unplugged the status light on the power probe switch to open circuit so that was of no help.
I have checked the radio RF isolaters and they are not grounded out anywhere.
I have taken the pcm out and inspected the board and see no obvious burned or bad spots and have checked each pin on the PCM to see if any were ground out and the only one showing ground is the pin that is supposed to bbe grounded.
I honestly do not know what to do at this point and am looking for suggestions on how to find the short or ground fault. I really need to get this thing running and would be willing to pay someone for their time / expertise if they can walk me through step by step and track this issue down. I am very mechanically inclined but this electrical fault has me completely stumped. Hopefully someone has the time and can help a fellow cobra owner out.
