P0172 Diagnostic Trouble Code Discussion for May 2022
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2012 Toyota Highlander 3.5L Poor Fuel Economy VIN: 5TDBK3EH3C ... highlander that runs great but has codes p0172 and p0175. The Short term fuel trim for for bank 1 and 2 when first started are -21% and remain like that for about 20 min and then they drop down to /- 10 and the LTFT1 is 6.25 and LTFT2 is 3.125. The MAF... |
May 18, 2022 |
