Mk2 gti 8v need some help!

also thought could it be a bad fuel pressure regulator?

 

I did suggest that.

 

is there a way to test that and know??

 

You'll need a fuel pressure gauge really.
Or swap the reg. for another known good item.

 

There is a removable screw in the nearside end of the fuel injector rail. A fuel pressure gauge kit such as this can be used to cobble together to fit on the end of the injector rail to measure the pressure at ignition on, and while the engine is running.

https://www.ebay.co.uk/itm/353511853295?hash=item524ef2ccef:g:B~wAAOSwFopign~M

 

if i disconect the vac line for the fuel pressure reg it just blows fuel out of it (that means it is bad right )

 

Yes!

 

It also means raw fuel is getting into your intake manifold from that vacuum pipe.

 

word we are replacing a fpr

 

What?

 

i am replacing the fuel pressure regulator and gonna see if that fixxes it up !

 

Ah yes. I understand you now. Hopefully that works

 

i do too i will keep you updated