fuel pressure

Huw Powell audi at humanspeakers.com
Fri Aug 13 22:37:58 EDT 2004

> I don't have enough fuel pressure to open the fuel injector valves on
> my 88 5kt, I have a new fuel pump, and fuel filter,  What would cause
> low injector pressure.  I don't know what the actual pressure is I
> don't have the equipment to check.  I can attach the injectors to an
> air line and they will open at about 90 psi, so the injectors are
> o.k. I think

I thought they were supposed to open at about 50 psi?

Your air plate is lifting properly, right?  (no air leaks, etc)

Maybe your control pressure regulator (warm up reg) is not working right?

Unless it turns out to be something obvious, I don't think there is a 
way to trouble shoot this without a set of fuel pressure gauges and 

Huw Powell



More information about the quattro mailing list