Anybody come across these problems or have an exact location for where the 12v supply for the fuel pump circuit begins? Looked at a few different wiring diagrams and they are not showing whats before the fuse
Hey guys. Working on a 88 k2500 with a tbi 350.
Engine ran before letting it sit for a couple years. Now theres no power to the fuel pump and the injectors arent firing. Got lots of spark and the engine will start if u dump a bit of fuel down the throttle.
If i jump the fuel pump wiring with...
Ok!!! So after months of checking wiring in my limited spare time i found that a common ground for the pcm on the back of the passenger side cylinder head had broken off. Repaired the wire and shes good to go!!!
Thanks for all the input guys, really appreciate it!!!
-Archer
This engine ran perfect before it was installed into my truck. Thats why i know its not that. If anything it could be the wiring to the dist. Im in the process of checking wiring
Yeah it seems more and more like i pinched something sometime. Im in the middle of checking the wiring harness. I checked the spider inj plug. Its good. Thx for the suggestions
Thanks for the reply. The distrubutor has never been touched on either the old or the new motor. Also if it was out a tooth the pcm would throw a cam correlation code. These are very sensetive to timing changes.
Thanks for the reply.
I'll double check the spider injector harness connector for damage. I was carefull not to pinch any wiring during either swap but again ill double check that too.
Im thinking the same thing.. only problem is ill have to goto the dealer. Ive tried those bluetooth dongle to ur phone apps but i dont think its good enough...
Thanks for the reply! The PCM is not storing codes. The only indication that the engine is misfiring is that the engine light is flashing. I have a couple spare egr valves and they all make the engine run the same...