Click to view attachmentQUOTE(JC 914 @ Aug 6 2007, 02:02 PM)
Just as my mechanic was about to set the timing on my 74 2.0, it ran out of gas!
OK, no biggie, just gas up and move along. WRONG!!!!!! No fuel pressure from fuel pump. WTF!!!!
Coincidence, gremlins, bad luck, or what?????
How to run this down, and in what order?? All help greatly appreciated
P.S. Car had been running with no fuel problems.
Okay, I am a "newbie" here and not an expert. That said...
I just resolved the fuel pump problems I had in my car (I purchased the car in non-running condition and the PO told me it had sat for about 10 years). The car in question is a stock 1973 914 1.7 with fuel injection.
In my opinion, the first thing you need to do is to verify if your pump is working or not.
You may want to try this...
Cut a piece of 16 GA wire that is long enough to reach from your battery to your fuel pump's electrical connector. Crimp a push-on connector to one end of the wire. Strip about 3" off the other end of the wire. Mark both ends of the wire with "GROUND".
Make another identical wire (as explained above), but mark this one "+".
At the fuel pump, carefully remove the electrical connector. Then, paying close attention to the polarity, install the two "jumper wires" you just made to the fuel pump.
I cannot stress the fact that the polarity must be correct; as your pump *CAN* run backwards but will not put fuel under pressure to the engine! Please don't ask me how I know!
Make sure you have sufficient fuel in the fuel tank.
Now, attach the "+" and "GROUND" leads of the "jumper wires" you just made directly to your car battery.
If you have a working fuel pump, you should be able to hear the pump "whirring" at this time.
After verifying that you have no fuel leaks (that could cause a fire), go-ahead and try to start the car (with the fuel pump running, still being powered directly from the car battery).
If your car starts and runs, then you know you've got a good fuel pump. If the pump doesn't work (mine didn't), then you may want to tear it down (which is what I did). I serviced my "stuck" fuel pump and now it works just fine. I took photos of the process. If you are interested, let me know.
Once you've verified that you have a working fuel pump, you can then start troubleshooting your potential electrical issues (I would start by making sure that the relay board, the relays, connectors and fuse are all good).
When I started trying to get my car going, I had a plethora of problems I had to sort-out with the fuel pump. I FEEL YOUR PAIN!
If you need more troubleshooting advise in this area, let me know... as it is all still VERY FRESH IN MY MIND!