I have a 1990 GXL. It has a fuel pressure problem. I checked the fuel pump and it is working. It will run BUT only if my foot is in the gas. BUT even then it runs pretty bad. Do these have a Fuel pressure regulater? What else could it be?

 

Check for vacuum leaks, from the filter all the way to the engine.

 

vacuum leaks in general....
also, check the grommets and insulators on the injectors too, these went out on me before.

 

how do you do that? I don't smell gas like there is a leak. I put gasket sealer on the hose attaching into the fuel pump thinking it was there but that did not work.

 

thanks.....

 

How do you know that you have a fuel pressure problem? Have you verified fuel pressure with an external gauge?

More then likely, you have a vacuum leak. Check specifically around the large black intake tube that leads from the AFM to the throttle body (or turbo, if you have a TII).

 

I'll do that! thanks.