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P0172
- abbottjames712
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3 years 8 months ago #54312
by abbottjames712
P0172 was created by abbottjames712
2010 Malibu 2.4L P0172: New MAF, O2 sensors, ECT sensor, thermostat.
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- Tyler
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- Full time HACK since 2012
3 years 8 months ago - 3 years 8 months ago #54316
by Tyler
Replied by Tyler on topic P0172
abbottjames712, I moved your thread to the Repair section. 
More likely to get assistance there.
Have you tried resetting your Fuel Alcohol Content %? That's a common source of rich conditions on that engine. Your scan data indicated 32%, which is enough to cause issues *IF* you haven't been buying E85.
If you reset the Fuel Alcohol Content and your fuel trims immediately improve, then you're on the right track. Check out TSB 10-06-04-004B for more info:
nanopdf.com/download/intermittent-illumi...dicator-lamp-mil_pdf
More likely to get assistance there.Have you tried resetting your Fuel Alcohol Content %? That's a common source of rich conditions on that engine. Your scan data indicated 32%, which is enough to cause issues *IF* you haven't been buying E85.
If you reset the Fuel Alcohol Content and your fuel trims immediately improve, then you're on the right track. Check out TSB 10-06-04-004B for more info:
nanopdf.com/download/intermittent-illumi...dicator-lamp-mil_pdf
Last edit: 3 years 8 months ago by Tyler.
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