Fuel pump is not coming on. I guess first I need to give history of current events. Car was running prior to replacing old fuel pump, timing chain install and a detail cleaning of the engine bay where I did have the engine compartment striped.
Here's what I got or found so far. The stock wiring harness is reading 8.4 volt at the plug prior to the plug going in the tank. When I turn the key on, it still has the 8.4 on center pin and .46 volt on one of the outside pins. The fuse under the dash is good, and if I try to jump power to the lead under the alt I get nothing ether. This was a brand new walbro 307.
What all could be wrong….keep in mind I did have all plugs in the engine compartment disconnect.
I was hoping to get her cranked today…….
Later & More testing results.....
The center red wire from the stock wiring harness that plugs into the purple wire of fuel pump has 8.40 volts. The tan wire w/ white stripe that plugs into the gray wire of the pump has 0.00 volts with key off or on. Fuse good and I swapped out a known good fuel pump relay with no change. I think the purple wire is for the sending which is reading correctly.
Here's what I got or found so far. The stock wiring harness is reading 8.4 volt at the plug prior to the plug going in the tank. When I turn the key on, it still has the 8.4 on center pin and .46 volt on one of the outside pins. The fuse under the dash is good, and if I try to jump power to the lead under the alt I get nothing ether. This was a brand new walbro 307.
What all could be wrong….keep in mind I did have all plugs in the engine compartment disconnect.
I was hoping to get her cranked today…….
Later & More testing results.....
The center red wire from the stock wiring harness that plugs into the purple wire of fuel pump has 8.40 volts. The tan wire w/ white stripe that plugs into the gray wire of the pump has 0.00 volts with key off or on. Fuse good and I swapped out a known good fuel pump relay with no change. I think the purple wire is for the sending which is reading correctly.