Fuel relay problems

44 posts · joined Oct 2003 · 6 May 2005, 9:47 pm

#351774

A friend of mine has put a Subaru 2.2 into a VW fastback. It is a nice fit. The problem happens when the ignition is turned on. The fuel relay starts clicking. The fuelpump does not pump fuel. He is using the stock wiring harness. He used the Kennedy diagram to rework the harness. This is not his first harness. He has built two Vanagons with the Subaru 2.2 and had no problems. This one has him puzzled. Any ideas on this?

Ernie

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 6 May 2005, 11:10 pm

#351825

how much does it click?
does it click on, then off about 5 secs later, or is it just on off on off, quickly?

Has he checked the output of the relay with a mulitmeter to see if it's giving 12volts when it switches on?

could be two things, faulty relay, or faulty wiring.

also, do a diagnostic check using the black plugs and see if it shows a fault code for the fuel pump.

[Edited on 6/5/2005 by pete wood]

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

junkyardoval Casual Dubber

44 posts · joined Oct 2003 · 6 May 2005, 11:54 pm

#351847

It clicks quickly. I will pass this info along. I need him to get this fixed so he can do my harness.

Ernie

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 7 May 2005, 9:48 am

#351934

If none of that worked try this.

Definitely do a diagnostic check with the black plugs. That should help you know if theres a problem.

First check everything is hooked up properly on the motor and the wiring is good. If that's all good but the motor is showing more than say three or four fault codes, you probably have a power supply issue with the computer. That can be caused by the main ECU relay. Apparently these can be a pain, and I should know, mine was stuffed last week and the motor wouldn't fire.

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

junkyardoval Casual Dubber

44 posts · joined Oct 2003 · 8 May 2005, 10:41 pm

#352696

Thanks guys. He found the problem. A ground wire on the plug for the diagnostic hookup. Runs fine now. My car is going to his house on the 27th. He will weld the new roof on and build and install the wiring harness. Maybe after almost four years I will hear the engine run again. Now I have to hurry and get the front firewall installed and the fuel tank finished.

Ernie

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 · 11 May 2005, 6:02 pm

#354369

love to see some pics of his car 😉

"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

exwrx Learner Dubber

16 posts · joined May 2004 · 11 May 2005, 6:20 pm

#354387

In fact, pics of both cars would be great 🙂

72RSbug Officially Full-On Dubber

266 posts · joined Jan 2005 · 11 May 2005, 6:28 pm

#354400

@ junkyardoval, you also have an EJ20 twin turbo, correct? I'm in the middle of my TT conversion and have some isses you may already have worked out on your bug.

junkyardoval Casual Dubber

44 posts · joined Oct 2003 · 12 May 2005, 10:19 pm

#355243

I will get photos of his conversion and try to post. Any question about mine just drop me an email or post here. Will help if I can.

Ernie

eacothern@excite.com