Adjustable FP Regulator Not Working, WTF ???
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Joined: Jul 2002
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From: NW Ohio
Car: '91 RS
Engine: LO3, For now...
Transmission: 700R4
Adjustable FP Regulator Not Working, WTF ???
Lets see if anyone has seen this before:
I just did the Ultimate TBI adjustable fuel pressure regulator, only to find that it was already adjustable. It has a knurled **** on a threaded shaft protruding down out of the regulator cup. It turns easily, but after several tries, I find that the pressure doesn't seem to change no matter which way I go. I haven't tried to disassemble it further because the **** prevents removing the injector pod from the base that it sits on.
Also, after installing headers, 3" cat and catback, I find that according to my digital volt meter reading off the O2 sensor, I have a rich mixture, instead of lean. This is with a new O2 sensor, plugs and wires.
I hope I made everything clear enough.
Thanks in advance for any replies.
:hail:
I just did the Ultimate TBI adjustable fuel pressure regulator, only to find that it was already adjustable. It has a knurled **** on a threaded shaft protruding down out of the regulator cup. It turns easily, but after several tries, I find that the pressure doesn't seem to change no matter which way I go. I haven't tried to disassemble it further because the **** prevents removing the injector pod from the base that it sits on.
Also, after installing headers, 3" cat and catback, I find that according to my digital volt meter reading off the O2 sensor, I have a rich mixture, instead of lean. This is with a new O2 sensor, plugs and wires.
I hope I made everything clear enough.
Thanks in advance for any replies.
:hail:
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