I have been working on this 1988 16V Scirocco for way to long, trying to get the car preped for ITA. When I had the time I didn't have the money and the money with no time to work on it. Well this summer I had a running car and took it to a HPDE to get some track time prior to a W-to-W drivers school. The car make 2 laps and barley make it back to the pit lane on the second.
Determined the fuel pump wasn't running, checked the relay and a few other items. Tried starting the car and it fried right up. Drove it to pitlane to go back out and it dies when I give it some gas in second gear. Car will not restart. Check thing out and find no power to fuel pump. Load it on trailer and go home.
I check over the car over the following weeks trying to get it ready for the drivers school in mid July. One day I drive the car around the block and it drives fine until I get on the gas hard in 2nd gear. The car sputters & dies. After a few minutes it restarts. Now the problem may be there in 1st, 3rd, & 4th but I never got the chance to try it.
The last time this happened was on Friday the day I was to leave for the school. Needless to say I didn't go, so now I will have to wait until next year to attend a school.
Since then I have discovered a way to duplicate the problem but I'm not sure why.
There are 3 wires coming from the throttle body. They are from the "Full Throttle & Closed Throttle" switches. If I move them with the engine runnig it will stumble, move them some more and the engine dies. Turn the key off and try to restart and you hear no fuel pump relay click or pump run. Move the wires again and try to restart and it does. This is where I'm at. I'm not in a big hurry to dig into it but i think that it may be a broken wire or bad connection at the plug on the throttle body. I will be getting a parts car next week so i plan on cutting that part of the harnes from that car and splice it into mine. I have used 2 different relays and checked the keyed ignition switch and both check out fine. I also replaced the fuel pump before I found this out so it's not the problem either.
Anyone with CIS-E experience who can tell me why this happens? Or how the throttle switches effect the power to the fuel pump relay?
Determined the fuel pump wasn't running, checked the relay and a few other items. Tried starting the car and it fried right up. Drove it to pitlane to go back out and it dies when I give it some gas in second gear. Car will not restart. Check thing out and find no power to fuel pump. Load it on trailer and go home.
I check over the car over the following weeks trying to get it ready for the drivers school in mid July. One day I drive the car around the block and it drives fine until I get on the gas hard in 2nd gear. The car sputters & dies. After a few minutes it restarts. Now the problem may be there in 1st, 3rd, & 4th but I never got the chance to try it.
The last time this happened was on Friday the day I was to leave for the school. Needless to say I didn't go, so now I will have to wait until next year to attend a school.
Since then I have discovered a way to duplicate the problem but I'm not sure why.
There are 3 wires coming from the throttle body. They are from the "Full Throttle & Closed Throttle" switches. If I move them with the engine runnig it will stumble, move them some more and the engine dies. Turn the key off and try to restart and you hear no fuel pump relay click or pump run. Move the wires again and try to restart and it does. This is where I'm at. I'm not in a big hurry to dig into it but i think that it may be a broken wire or bad connection at the plug on the throttle body. I will be getting a parts car next week so i plan on cutting that part of the harnes from that car and splice it into mine. I have used 2 different relays and checked the keyed ignition switch and both check out fine. I also replaced the fuel pump before I found this out so it's not the problem either.
Anyone with CIS-E experience who can tell me why this happens? Or how the throttle switches effect the power to the fuel pump relay?