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SportTrac Discussion
Engine & Drivetrain
05 SPORT TRAC - E85 with P1072 & P1075 EMMISSION CODES
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<blockquote data-quote="STEVE SCHEUMAN 2" data-source="post: 1031112" data-attributes="member: 73678"><p>UPDATE -- No vacuum leak detected and no parts had to be replaced. Yesterday, I had my friend hook up his Tech 1 scan tool and clear the P1072 and P1075 codes again. Then he used the same scan tool to recalibrate the fuel trim levels in the engine's computer. That tank full of E85 fuel made the trim levels go out of control, which made the O2 sensors throw the codes for Bank 1 and Bank 2 being too rich. The computer could not compensate for the amount of trim needed to get the air fuel ratio back to the normal range. that is why the codes kept returning after being cleared previously. No explanation as to why this problem happened, since my truck is a Flex-Fuel vehicle. Anyways, the engine light has not come back on and my friend was fairly confident he made the right fix to the problem. I will keep you posted if the problem returns. Thanks for the participation in this matter.</p></blockquote><p></p>
[QUOTE="STEVE SCHEUMAN 2, post: 1031112, member: 73678"] UPDATE -- No vacuum leak detected and no parts had to be replaced. Yesterday, I had my friend hook up his Tech 1 scan tool and clear the P1072 and P1075 codes again. Then he used the same scan tool to recalibrate the fuel trim levels in the engine's computer. That tank full of E85 fuel made the trim levels go out of control, which made the O2 sensors throw the codes for Bank 1 and Bank 2 being too rich. The computer could not compensate for the amount of trim needed to get the air fuel ratio back to the normal range. that is why the codes kept returning after being cleared previously. No explanation as to why this problem happened, since my truck is a Flex-Fuel vehicle. Anyways, the engine light has not come back on and my friend was fairly confident he made the right fix to the problem. I will keep you posted if the problem returns. Thanks for the participation in this matter. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
05 SPORT TRAC - E85 with P1072 & P1075 EMMISSION CODES
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