No power to fuel pump. Wiring? Help!

[LightningGSX]

Have either of you checked for power at the FP check terminal during cranking? Do either of you have the CEL on?

Caustad- What year is your car?

[Goat Blower]

Ahh, I forgot about that. There's a check wire on the passenger side firewall for the fuel pump, hotwire that to see if the pump comes on. I remember doing all this same shit about two years ago, it ended up being my injector resistor pack on the firewall.

[Sean485]

You should be able to troubleshoot better with this. If you need any other schematics let me know or if you can get ahold of the "DSM CD" get it, its handy :)
http://www.quadcitiesdsm.com/sean/Pictures/PicsForTalk/mpicircut.JPG

[caustad]

My car is a 94 tsi and I haven't tried the fuel pump check terminal but did hard wired the fuel pump and you could just hear the injectors constantly spraying wide open when it was hard wired but when it's hooked up to the stock wiring I still get no power. And I did hard wire it correctly with a relay and everything. LightningGSX asked if I had the CEL on? what's the CEL?

[LightningGSX]

CEL- Check Engine Light
There is a input on the ECU that checks for FP power coming out of the FP relay during cranking and run.If the CEL is not on, that should mean you have FP power coming out of the relay, and your problem is probably the wiring after the relay.
Are you sure the injectors stayed open? Thats not very likely.Anyway FP diagnosis is extremely simple, since the circuit itself is simple.Grab a multimeter and start probing points on the above diagram, you should be able to locate the problem in no time.

[Sean485]

Fuel should not be getting past the injectors regardless of if the pump is running constantly. The ecu has control of them and if they are open even if the CAS is not turning then the ecu is fried. Try turning the ignition to run and then turning the cas by hand with your ears near the injectors and/or your fingers on them. You should be able to hear/feel the injectors opening and closing as the CAS is rotated. If the injectors dont click then its liikely the CAS.

CEL = check engine light

[caustad]

I have 2 ECU's one of them I know is good and they both do the exact same thing. I was told that DSM's use grounding signal to tell the injectors when to turn on (Anybody else heard of that?) by a couple of people and thought I probably had a wire pinched or grounded out somewhere. I should be able to find out the problem with a tester and the info from everyone.

[caustad]

Ok so I checked to see if there was power at the fuel pump check terminal while cranking over the motor and there was not. Also, the CEL was not on while turning over the motor. I put my hand on the MPI relay and it clicks when I turn the key on too. Is there any reason to check the CAS at this point? or should I just look for a wiring problem after the relay?