Diesel : No juice to my cut off valve

[Jetta3us]

Hey I still have the same problem with my Jetta. The fuel pump wasnt working at all ( the car isnt starting ) but after several test I found that I dont have any power coming to the Cutt-off valve. The car starts and run really fine if I connect the cut off valve direclty to the battery. I checked the fuse in the fusebox and this is not the problem. SO what wrong? Since its connected directly to the fuse box ? Is it a Relay or something??

Btw the wiring is okay

[boschmann]

That's interesting. I would first think ECM power supply relay (position #3, top row, third from left), but thatr should also prevent the engine from running. I would also suspect the ignition switch since that is such acommon problem on the '97's, but the solenoid is powered directly from the ECM. That only leaves me with a bad wire, the solenoids white w/black trace wire connects to the ECM pin #53. Check it's continuity, if it's good then it might be a bad ECM (just a guess).

[Jetta3us]

I will test the wire and I really thinks this is my problem but if its the ECM what do you suggest me to do? What about connecting the wire to a different connection? ( accessories !? ) Since I only need a continuous 12V power for the solenoid?

[Jetta3us]

maybe thats a tupid question but are ECM pins numbered? if not how can I know wich is N53 ?

[boschmann]

You may be able to find numbers on the end pins of the connector, but it may be easier to find the color. Check for continuity between the ECM & solenoid.