running issues!

hello .Ive got a running prob with my gti it has been a a non starter for a while i have fitted a new fuel pump and a new metering head  it wouldnt start for ages i think thiere was an air lock in the fuel system i cracked off the fuel inlet bolts while cranking and she started! it ran nice and stable when cold, problem now is when it starts to get up to temp the reves will be come very erratic/unstable when pushing accellerator and the engine revs will drop off if left to idle. any ideas would be much appreciated thanks. (1.6 gti 1981 k-jetronic).

Sounds like a fuel delivery issue to me. Search for Prowlers injector Test. Give that a go & report back…

ok, looks like im gonna need a little help from a mate for that one  thanks .just to add i have recently found that by taking off the petrol filler cap it will start no problem every time what does this mean?, then the same as before occurs the revs die off etc. thanks again.

Hi i have a VW golf mk 1 sportline 1993 , and i am having problems starting it in the morning when its cold !! and also it judders at times when driving! like its struggling to get going and kangaroos for a bit then its ok again... Any ideas of what it could be?? or what i could do??? many thanks Lee

my first port of call would be to check the distributer cap. check its not letting in moisture and the contacts are clean.(i think new ones are about ?5)

when were the ht leads last changed, pull them off and have a look at your plugs, check they aren't black.

this would be the first things to check cause they pretty simple to diagnose.

if they're ok it will be a pressure, problem or an air leak. hth

that last post was for wilkie3 didn't realise that there were posts above that!!!

I had a similar problem with my 1.8 gti. It would start fine but after a while you wouldnt be able to drive above about 3000 revs. If you put your foot down on the acclerator it would slow down.

A mechanic diagnosed it as my fuel metering head, so i changed it and it didnt make any difference. I ended up changing my pump, accumulator filter none of this helped. untill eventualy i changed the injectors and it went like a rocket.
Basicly i think it could be any part of your fuel injection system.
Having said that i would check your spark leads dizzy cap and rotor first cos its cheap. like lakesk8 said

hello just a update of what i have tried i have changed fuel pump, fuel accumulator, metering head ,plugs ,leads dist/cap ,timing/cambelt done alternator, capacitor, fuel filter ,vacuum hoses and still the same problem the garage was no help what so ever so im going to put it on a trailor and take her to the nearest vw specialist, i think its time to get someone who knows what their doing on this one lol, if anyone has any ideas atall on what this could be im guessing its going to be the injectors but ill keep you posted thanks for all the posts.

Whereabouts are you located? It sounds very solvable.

stroud/gloucestershire area .thanks

woZa said

Sounds like a fuel delivery issue to me. Search for Prowlers injector Test. Give that a go & report back…

If you had done this test at the start then you could have saved yourself a lot of time, effort & money…

vwgolfm1 said

hello just a update of what i have tried i have changed fuel pump, fuel accumulator, metering head ,plugs ,leads dist/cap ,timing/cambelt done alternator, capacitor, fuel filter ,vacuum hoses and still the same problem the garage was no help what so ever so im going to put it on a trailor and take her to the nearest vw specialist, i think its time to get someone who knows what their doing on this one lol, if anyone has any ideas atall on what this could be im guessing its going to be the injectors but ill keep you posted thanks for all the posts.

woZa said

woZa said

Sounds like a fuel delivery issue to me. Search for Prowlers injector Test. Give that a go & report back…

If you had done this test at the start then you could have saved yourself a lot of time, effort & money…

vwgolfm1 said

hello just a update of what i have tried i have changed fuel pump, fuel accumulator, metering head ,plugs ,leads dist/cap ,timing/cambelt done alternator, capacitor, fuel filter ,vacuum hoses and still the same problem the garage was no help what so ever so im going to put it on a trailor and take her to the nearest vw specialist, i think its time to get someone who knows what their doing on this one lol, if anyone has any ideas atall on what this could be im guessing its going to be the injectors but ill keep you posted thanks for all the posts.

x2

Looking back though, its been to a garage - I'm sorry if this is another moan but it really narks me off, that there are garages out there, taking money off people, who basically mess around and can't troubleshoot/fix cars any more! K-Jet, yes its mechanical, but in the era so were half the fuel injected cars out there so its not exactly a rare or weird setup!!!!!!! I'd be tempted to take a large fish with you and ask to see the mechanic who worked on your car in person……