96 f250 P0171&P0174 need help passes all vac test

Asked by Miller0888 Mar 19, 2016 at 04:02 PM about the 1999 Ford F-250 Super Duty XL LB

Question type: Maintenance & Repair

Don't see anything visually don't see anything wrong with live data passed all
vacuum test

3 Answers

Miller0888 answered 8 years ago

Mac passed mode 6 test how about a restriction like low flow injector but that shouldn't give me a lean condition in both banks a weak fuel psi regulator I'm leaning too

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