Hello,
New to the list and alfa's in general. I have been lurking on the list for a little while. I picked up a '87 Quad last fall and with the weather getting nicer, I am beginning to sort it out.
I am currently troubleshooting a starting problem that I think is being caused by a lack of fuel to the engine (cranks but doesn't fire) and the spark plugs are completely dry.
I had just replaced the fuel hose on the low pressure side of the high pressure pump to address a problem of poor gas mileage... (drip, drip, drip). It started right up after that and I drove it two miles before it died and hasn't started since. The replaced fuel line looks ok (not pinched on the bends)
When I turn the ignition on, I can here the relays click, but I don't hear the fuel pumps spinning. I have the great Papajam wiring diagram, and have replaced the fuse next to the ECU. It looked fine, but just to be safe. There is power through that in-line fuse. Battery voltage looks OK (12.6V and 10.9V when cranking).
There doesn't appear to be any power at the in tank pump (no voltage on the pink/white wire). I assume that there should be power there when the ignition is on to run the pump. When I apply power directly to the wire in tank pump (in the tank), it seems spins just fine so I think the pump is ok.
Is it safe (only as a test) to jumper around the drive relay (fuel pump). Is there another way to test the relays or is there something else I am missing? Thanks for any guidance.
Jim.
New to the list and alfa's in general. I have been lurking on the list for a little while. I picked up a '87 Quad last fall and with the weather getting nicer, I am beginning to sort it out.
I am currently troubleshooting a starting problem that I think is being caused by a lack of fuel to the engine (cranks but doesn't fire) and the spark plugs are completely dry.
I had just replaced the fuel hose on the low pressure side of the high pressure pump to address a problem of poor gas mileage... (drip, drip, drip). It started right up after that and I drove it two miles before it died and hasn't started since. The replaced fuel line looks ok (not pinched on the bends)
When I turn the ignition on, I can here the relays click, but I don't hear the fuel pumps spinning. I have the great Papajam wiring diagram, and have replaced the fuse next to the ECU. It looked fine, but just to be safe. There is power through that in-line fuse. Battery voltage looks OK (12.6V and 10.9V when cranking).
There doesn't appear to be any power at the in tank pump (no voltage on the pink/white wire). I assume that there should be power there when the ignition is on to run the pump. When I apply power directly to the wire in tank pump (in the tank), it seems spins just fine so I think the pump is ok.
Is it safe (only as a test) to jumper around the drive relay (fuel pump). Is there another way to test the relays or is there something else I am missing? Thanks for any guidance.
Jim.