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scottfab · 07-19-2012

I believe you need to start at the secondary fuel pump (which others have said). I certainly would not jump to the injectors to start and I would think a problem with spark would be at low rpm and dissipate at higher rpm.
Attach fuel pressure gauge and tape to windshield. Go for a drive. At no time should the pressure go down to 45.

However, I am simply amazed it's not setting a code. Try driving to the miss and hold it there. See if you can force a code. The expected code would be a lean condition.

If fuel pressure ok.....plenum time. Left bank or right may be sticking. Ask me how I know.

07-19-2012	#6
scottfab Join Date: Jan 2009 Location: Portland Oregon metro area (Washington side) Posts: 3,193	Re: Missing at WOT with full power I believe you need to start at the secondary fuel pump (which others have said). I certainly would not jump to the injectors to start and I would think a problem with spark would be at low rpm and dissipate at higher rpm. Attach fuel pressure gauge and tape to windshield. Go for a drive. At no time should the pressure go down to 45. However, I am simply amazed it's not setting a code. Try driving to the miss and hold it there. See if you can force a code. The expected code would be a lean condition. If fuel pressure ok.....plenum time. Left bank or right may be sticking. Ask me how I know. __________________ Scott Vett owner since 1979._It's about the car and the people Last edited by scottfab; 07-20-2012 at 10:52 AM.