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Air to gas ratio problems 2002 V8 5.4L Ford F150
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Maddie0944
Novice
Dec 27, 2014, 5:35 PM
Post #1 of 7
(1916 views)
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Air to gas ratio problems 2002 V8 5.4L Ford F150
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So my truck is a 2002 V8 5.4L Ford Lariat F150 Truck with about 150,000 miles, it used to be supercharged before we had this problem, but we had to sell the supercharger for the labor the mechanic put into trying to find this seemingly unsolvable problem. The air to gas ratio has seems to be the biggest issue, the truck struggles to get up to speed and during its struggle the truck spits gas causing an unwanted surge forward until it gets to about 40 MPH and is all around shaky. Recently the catalytic converters burnt out so we sawed them off and ran straight pipes while reconnecting the co2 sensors to the new pipes. We have checked the coil packs, replaced the fuel filter and pump three times, and checked all the fuses, vacuums, and any wiring we can reach... I would hate to let this thing go, it would just break my heart... any suggestions or answers would be appreciated, Thanks!
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 27, 2014, 5:38 PM
Post #2 of 7
(1914 views)
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Re: Air to gas ratio problems 2002 V8 5.4L Ford F150
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UNBELIEVABLE! You traded your supercharger to a mechanic that couldn't fix your problem.
What are the code NUMBERS being set in the computer.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Maddie0944
Novice
Dec 27, 2014, 5:44 PM
Post #3 of 7
(1909 views)
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Re: Air to gas ratio problems 2002 V8 5.4L Ford F150
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Yeah we had no other choice... Lean Bank 1 and Lean Bank 2, EVA, EGR, HTR, PO174.. those are just some of the codes it read.
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 27, 2014, 6:10 PM
Post #4 of 7
(1897 views)
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Re: Air to gas ratio problems 2002 V8 5.4L Ford F150
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What's the fuel pressure?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Maddie0944
Novice
Dec 27, 2014, 6:50 PM
Post #5 of 7
(1889 views)
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Re: Air to gas ratio problems 2002 V8 5.4L Ford F150
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I don't have a fuel pressure gauge to check it.
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 27, 2014, 7:29 PM
Post #6 of 7
(1882 views)
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Re: Air to gas ratio problems 2002 V8 5.4L Ford F150
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You can't expect us to magically tell you what the problem is with no info.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Maddie0944
Novice
Dec 27, 2014, 7:50 PM
Post #7 of 7
(1880 views)
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Re: Air to gas ratio problems 2002 V8 5.4L Ford F150
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Okay well I'm sorry, people with no money have limited options but thanks...
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