Teddy952

Here is my previous thread..

https://rennlist.com/forums/944-turbo-and-turbo-s-forum/283258-starting-issue.html

I have adjusted the idle screw on the top of the throttle body and it did nothing to solve my starting issue. I have checked and double checked vacuum hoses. I have been driving the car for days with no issues what so ever. But everytime I try to start it, it will catch then immediatly die.

I still have to press the throttle while cranking in order for it to start. The idle is steady after I start it and I don't have to keep the throttle pressed to keep it idleing. It reminds me of the way you would pump the carburator while cranking to get older cars to start.

streckfu's

Have you looked at the fuel check valve? If it fails, the fuel rail will lose pressure making starts difficult.

If you have access to a fuel rail pressure gauge install it, start the car, the shut it off. If the fuel pressure bleeds down over a period of time, this could the reason.

Teddy952

I don't have a fuel rail gauge.

How do I check the fuel check valve and where is it?

THX

streckfu's

You'll need to buy/borrow a gauge. The run about $40. The check valve is near the fuel pump near the right rear wheel well.

dougoh

maybe your DME...is there someone you can swap with

Teddy952

Nobody is nearby for a quick DME swap.

Once I get to the fuel check valve what is the proceedure for checking it?