16v cabby problems

Im still in the process of getting my mk1 running it starts but will only run for a couple of seconds nomatter what the trottle setting its doing my head in im using a mk1 gti loom with a tsr conversion loom the car was a clipper but ive changed the tank uel pimps and lines big yellow billstiens on the front black billies on the rear disc rear conversion 280mm front brakes ashley manifold and full 2" stainless exhaust system anyone got any ideas what ive done wrong that it doesnt run right.The engine ran fine in the mk2 it is supposted to be a tsr 16v engine mildly tuned any ideas welcome ive bridged the fuel pump relay to see if it was a incorrect relay but still the same changed the ignition amplifier just run out of ideas short of finding someone close by that I could have a look at relay numbers and where the wires all go on the back of the fuse box any mk1 gti would do that one  ANY IDEAS ???

Where do you want to start?

Is there enough fuel in the tank to prime the pump? have you disconnected the fuel pipe to the metering unit and checked that fuel can pass through it and that the return line is unblocked?

Have you taken the rubber pipe off the top of the metering unit, popped out the injectors and lifted the metering plate to see that they are actually able to spray fuel? (You will need to swap a normal relay for the fuel pump one to get it to run without the engine running) it does sound like the cold start injector is able to supply enough to make the engine run for a few seconds but there is nothing from the main injectors.

Another thing it could be is a major air leak somewhere, have you checked all your vacuum hoses and checked that any extra holes that should have pipes in have got pipes in? The flexible pipes on the metering unit and throttle bodies can sometimes split with age so do take them off and look!

Hope that helps a bit ;-)

I had a quick look today but to cold to take injectors out figured something would break but the fuel relay keeps clicking in and out but if I tap the top of the metering unit it stops doing it hopefully it will be a bit warmer tomorrow -17 again last night how much would it be for a secondhand metering head unit for a 16v

It is probably worth getting a set of injector o-rings whilst you are at it, they are well cheap and once you pop the injectors out I am sure you would be glad of the new ones. Not sure what tapping the metering head would do to affect the fuel relay?!? as I said make sure you bypass the relay so you can rule out that as a problem, possibly check all the battery terminals are tight as they are right next to the metering head! Once you know your injectors are able to fire out fuel with a half sensible pattern you can at least start to rule out the metering head as they are really reliable unless someone has been silly with fuel filters ;-)

Battery is on the opposite side as its mk2 16v fitted into the cabriolet shell

what fuel pump did you fit?

I fitted a 8v lift pump and 8 v fuel pump all off a running car complete with the loom

was it a k-jet or digi car, as a digi pump wont supply enough fuel for a k-jet

I've puy a k jet lift pump and fuel pump on plus the whole wiring loom off the k jet off a car that was a runner im thinking maybe ive wired something up wrong at the fuse box but that wouldnt explain why it ran above 200revs with fuel pump on constant