Quote:
|
Originally Posted by leadalto
I hooked up the fuel pressure guage and by using the key-on, ign-off or connecting the fuel pump pigtail connector direct to the + battery terminal, I get 60 psi which holds "forever". I cannot see any signs of gas leakage (pin hole or otherwise) on either side of the plenum (regulator or nut kit side). What gives? Shouldn't there be gas spilling into the plenum or a strong odor of gas if I have a leak? I'm looking right into the open plenum!
I pulled the plugs and they are not fouled but all were just sooty, as they would be from running a very rich mixture as I reported (black smoke in exhaust). The plugs on the left and right banks look the same.
I'm very reluctant to pony up to $350 - $450 in parts to fix a leak that I'm not seeing or smelling.
I cleaned the EGR a few days ago because I had an EGR code. That did not fix the problem. I'll do it again because it's so easy to do with the upper manifold removed. As a matter of fact, it's so easy to remove the upper manifold and the gasket is relatively inexpensive that it may be worth it (to service the distributor or even the EGR unit), to avoid needless aggravation.
I'm anxious to solve the problem but not to throw money at it.
|
A lot of times the leakage happens when underload, not always when you just prime it... That said, the regulator is only $40 bux and the nut kit runs about 60.00