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Can anyone shed any light on what is likely to be a familiar problem for storm or gti/gli owners. Here goes. I have a 1981 storm with engine code EG. Bought the car two years ago and have had problems getting it tuned. The car came with the original engine on 130,000 miles and one of the previous owners had the fuel system overhauled in 2001, with new filler neck, injectors and flushed out tank etc. The owner provided a reconditioned metering head, the rest was done by the VW garage based in Kent.
I had a lot of work to do on the car in terms of bodywork, suspension etc to get it through its MOT and left the running issues until afterwards. The first thing that was worked on was the fuel pump which failed a couple of times, and resulted in a quick fix by installing an inline filter between the tank and pump to stop any possible bits fouling up the sensitive pump. This worked and stopped the car cutting out unexpectedly. The running issues continued and these have been basically poor starting, in terms of the engine fires up ok but then the revs fall and the idle drops below 900 rpm and stalls unless the accelerator is pressed. The car would also idle roughly when warmed up, and then would not start properly if switched off and restarted again if left for any period longer than a minute or so.
As a result of these issues and problems with the cylinders, the engine was swapped for an identical unit, but from a car that had only done 46,000 miles, and the engine ran well before being taken out of the donor vehicle. After the installation of the new engine, the running issues continued and I referred the matter to my local VW dealer. Needless to say they were not able to solve the problem and if anything made it worse by not noticing that the filter had been leaking before they tried to set up the timing and mixture.
The latest attempt to sort out the problem has been carried out by a local garage and auto electrician, and so far they have been the only ones to make some progress. The accumulator was found to be badly corroded and did not appear to be maintaining pressure in the system. So that unit has been replaced together with the fuel feed from the pump, not cheap. I had thought that this may have cured the issues, but no, the car still starts badly, fails to idle at 900-950 rpm when warm, and refuses to re-start when hot.
My thoughts, apart from running down the M1 screaming, is could it be a duff metering head ? The cold start, warm up reg and thermo switches appear to be okay........any ideas or am I missing something that is very obvious?
Any help or ideas would be greatly appreciated to help maintain my sanity and get this good car back on the road so that I can blast around Derbyshire and Sheffield without breaking down!
Thanks
Mikeki
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