Quote:
Originally Posted by myoldmetal
The problem isnt the Napa pump. The problem is the the truck is not sending power to the pump. I have swapped the relay, and done the wire shake. in fact, I removed the under hood fuse box so I could inspect the plugs and ECU, and also traced the harness under the entire truck.....still no signal to the pump.
Thanks for the diagrams clinebarger. I was able to get a hold of these when I dropped the tank the second time, and I held the test light on the wiring while someone else turned the key on to make sure I csught it within the 2 seconds.......nothing. next I will be unplugging one of the injectors to see if I have a pulse at that loction, and see if I can narrow it down from the other direction.
|
Sounds like an interesting one. Can you test for signal on whatever device it is thats supposed to tell the pump to be on???
I know the napa pump isnt the problem now, but what im saying is it will be later. On average its about 15 months before we see the customer again with fueling issues. Thats why we stopped using them.