Cabriolet Photo's

[black_cabbie]

The fuel pump relay is giving 12V for a few seconds to bult some pressure in the system. Then it stop until the engine is started. If you are wondering why it doesn't continue to pump gass, think of this. Imagine you have an accident and the engine is off but the key is in the ON position. Pump is still pumping like crazy. Small fuel leak somewhere and voila. You have Cabriolet flampe!

As for the pins on the relay. What exactly are you trying to check?

[AndyF]

The problem I have is when I turn the ignition to the on position the fuel pump doesnÂ’t make a sound i.e. doesnÂ’t pump.  But when I turn the car over the pump will pump and is flooding the car something cryonic.

So I’m trying to work out if the relay is up the shoot (£45 for a new one) or has something happened to wiring, or even have I upset something when I changed the fuel pump on the car.

Any suggestions

Whats Cabriolet flampe!

[gibby]

Andy, if it is the fuel pump relay, £45 seems a bit steep !  Is that from the main stealers ? Try ECP they should be able to do that cheaper and so would VW I'd have said. 

I think black_cabbie meant "flambe" as in, you'll cook your car ! 

[Flidster_uk]

go down a scrapyard and take one off a mk2 injected car same unit cost you a £1 then. my relay welded itself and burnt out. I used to have problems with the pump alot of it was down to the pump itself being blocked by rust in the tank. i replaced the fusebox cleaned all the contacts and plugged it all back in. If you can get to a yard take one off a MK2 they charge peanuts and you may find one already set up for you just a straight swop.

[black_cabbie]

Are you sure it floods the engine? As far as I know the fuel pressure regulator adjusts how many bars the fuel system is supposed to have (3 bars for Digi cars) and the rest of the fuel is sent back to the tank.
So maybe you have another problem. The relay is one thing. Does the engine run?
Btw, your car has two fuel pumps. The transfer pump in the tank and the main pump. The transfer can go bad after a few years, destroying the main pump as well. So If I were you, I would remove the rear seat, undo the black round cover, get the pump out, clean the little screen it has to filter the fuel and try if it pumps fuel. If all is well, put everything back together.

And cabriolet flampe is simply a cabriolet on fire 

[AndyF]

You’d be right Gibby main stealers (lol) £39.99 + vat to be precise.

Just got back from searching around breakers yards with no success, in total I have must have been to about 10.  I have looked in Polo’s, Jetta’s Golf’s (Mk 2 & 3s) Corrado’s and Vento’s and can not find one. 

The relay I need has No ‘62’ stamped on the top of it.

Like I say have replaced the fuel pump under the car, but not the one in the tank.  Does this one return fuel back to the car ? I will check it tonight or in the morning.

1.   If I leave the fuel relay (62) plugged in and try and start the car, the pump will only run when I turn the car over and defiantly fills the bores.  This way the car wonÂ’t start.
2.   After IÂ’ve don the above, if I remove the relay and turn it over for a while it will eventually start on the fuel in the bores.  It will run for about 5-10 secs, revs up and sounds lovely (Scorpion back box).  It will start and run a further 2 or 3 times.
3.   What I have tried is once itÂ’s running plugging in the relay, but no fuel pump comes on, floods it and stalls.

I think your right black cabbie not only is the problem with pump or relay, I think there is a problem with unwanted fuel getting back to the tank. :sad: 

Someone has also told me there is some kind of valve which controls fuel or air, located near the battery in the air box Apparently these stick if left for a while.  Am I able to check this or is it even likely it could be this ?

[black_cabbie]

First of all, you are supposed to have fuel returned back to tha tank. Just the excessive pressure.

As for the airbox, you are probably reffering to the warm air flap. its a little flap which is vacuum operated (small hose from the front of throttle body to the side of the airbox). This helps during the cold starts. It closes the inlet at the front the airbox and opens the rear which connect to a deflector on the back of the manifold. This way the idle is more stable and it helps warm up the engine quicker.

Then you have 2 more vacuum lines coming from the back of the throttle body going to the charcoal canister. These hoses dissapear in the fender near the battery and connect to a canister inside the fender. You can see it if you look in the arch. This is for emissions only and serves absolutely no purpose.

Something I didn't check. What year is your cab? Is it a digifant or a CIS? If its a CIS the charcoal canister thing is slightly different.

[AndyF]

Yes I realise unwanted fuel should be returned, but just wondered how this done.

I think itÂ’s a CIS, whatÂ’s an easy way to tell ?

Why do you think the fuel pump wonÂ’t pump when I turn the ignition on ?

[AndyF]

Urgent update, black cabbie & Gibby where are you !!!

Took the plunge today and ripped out £400Â’s worth of alarm and immobiliser and bought a relay from GSF. 

Now the fuel pump energises when I switch the ignition on ( YEEESSS ), but its still flooding and wont run with the relay in. 

Anyone any ideas, please !!!

[gibby]

Maybe's a daft suggestion, but is the relay in the right place ? 

By the way, I got jv to take a photo of my fuse box and relays yesterday at the Newark meet, do you still need to look at it ? If so let me know and I'll sort the pics out.