Re: Stalling Problem

[Nathan Malone <nmalone@sumagroup.com>]

Hello Andy,
I had the same problem on my Mk1, it will be fine and then your idle will
drop like a rock, and the car dies, not to mention the iratic idle
in the first place. This problem haunted me for a while untill
I hunted it down to the fuel pump relay, as did you. I replaced
the relay, the jumper from the relay to the fuse box, and the fuse box
itself, this plus a vacume leak check, aparently fixed the problem,
it hasent happened again.

Good luck,
Nathan

aholmes@chubb.com wrote:

> OK guys i need your help
>
> About two weeks ago the car cut out on me whilst driving. It would start and
> then die very quickly and everytime it started it misfired/backfired really bad
> before dying. I noticed that the rev counter would dive to zero before the
> engine cut.
> Anyway upon investigation i found that the fual pump relay had melted itself
> onto the fusebox
>
> I changed the fusebox and relay but still the car wouldn't start so i played
> arond with the TCI/Ignition amplifier and it started but the idle was very bad.
> So i changed the ignition amp/TCI unit and replaced the connector boot (remaking
> all the wiring conections) and it started just fine
>
> I also replaced the fuel filter, tested the fuel pump and replaced the throttle
> body with a bigger Passat IL5for better air flow(not connected i am sure). In
> addition i looked at the airflow meter plate which was fine. The car worked fine
> apart from a high idle due to the TB and this weekend just gone i sorted this
> out with a new gasket. I also replaced the alternator belt (not connected)
>
> However last night she started misfiring badly so i ended up doing the kangaroo
> (uncool to say the least) before cutting completley.The first thing to go was
> the rev counter. It wouldn't start at all for about ten minutes and then it
> started finally with an almighty backfire (bear in mind it was 11pm in a quiet
> S.London suburb) but thereafter the idle was rough for about five minutes
> whereupon it smoothed out. However now the idle keeps jumping up and down very
> suddenly by about 200rpm
> i.e. it will be idling at 900rpm and all of a sudden it will jump up, stay at
> 1100 for a few minutes and then jump back.
>
> I am pretty sure that it is an electrical problem as the rev counter dies first
> but my question is
>
> Has anyone got a clue what could be causing this as i don't?
>
> Thanks in anticipation
>
> Andy
> 1991 1781cc 8V Scala
> S.London England
>
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