Replace the fuel accumulator (near the fuel pump by the tank). The
accumulator holds pressure in the system and prevents vapor lock.

"SFC" > wrote in message
. ..
> Again a typical case of vapour lock. Fuel pressure drops off too quickly.
> The fuel system should hold the pressure (about 14psi) for at least
> 20..30min. Check for leaks and if it's a cis injection replace the o-rings
> of the fuel pressure regulator located in the fuel distributor.
>
> SFC
>
> "JH" > schreef in bericht
> oups.com...
>> Regarding my recently aquired 84 VW Rabbit GTI - manual trans - 8
>> valve.
>>
>> I have read posts regarding topics relating to hard, hot starts but
>> have some additional questions.
>>
>> The car starts fine when it's completely cold, but takes quite a lot of
>> cranking in order to get it to start when the engine is hot. I checked
>> the cold start injector and found that it is working as it should on a
>> cold start (sprays for about 8 seconds, then stops). However, the cold
>> start injector does not operate at all on a hot start. The car does a
>> "hot start" when I manually put 12 volts to the cold start injector for
>> a few seconds while a helper starts the car.
>>
>> The other posts suggest that the failure is in the "hot start relay".
>> I can not find a hot start relay on the car, or referenced as a part
>> for this car. The only thing close is the CIS/Lambda relay. Is that
>> it?
>>
>> I am about ready to add 12 volts directly to the cold start injector
>> via a switch or, timer relay.
>>
>> Any suggestions?
>>
>> Thank you in advance!
>>
>> Jeff
>>
>
>