P0174 Diagnostic Trouble Code Discussion for November 2024
Fuel System Lean (Bank 2)
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| Help Request | Posted | |
| 2012 Chevrolet Impala LT 3.6L Check engine light VIN: 2G1WB5E32C P0174: System to lean bank two. I have codes P0171 and P0174. 38% positive fuel trim at idle and around 25% positive cruising and WOT. I blocked off purge, blocked off pcv, smoke tested intake, inspected intake tube, used propane around intake with no change in fuel trim, smoke tested ex... |
November 22, 2024 | |
| 2012 Chevrolet Impala LT 3.6L Check engine light VIN: 2G1WB5E32C P0174: System to lean bank two. I have codes P0171 and P0174. 38% positive fuel trim at idle and around 25% positive cruising and WOT. I blocked off purge, blocked off pcv, smoke tested intake, inspected intake tube, used propane around intake with no change in fuel trim, smoke tested ex... |
November 23, 2024 |
