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P1174 Diagnostic Trouble Code Discussion for November 2012

Fuel Trim Cylinder Balance

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Trouble Ticket Help Requests for DTC P1174
Help Request Posted
2006 Chevrolet Impala LT 3.5L MIL Lamp on VIN: 2G1WT58K76
P1174: Air Fuel Imbalance. ... that will set a p1174 cylinder imbalance code and will not pass emissions test. my info is very limited on the p1174. mitchell is vague on it. i have smoke tested intake with no leaks found. fuel pressure is 58psi running. o2 sensor is switching beautifull...
November 28, 2012