P1174 Diagnostic Trouble Code Discussion for September 2016
Fuel Trim Cylinder Balance
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| Help Request | Posted | |
| 2007 Chevrolet Uplander LS 3.9L MIL Lamp on VIN: 1GNDV23W37 P1174: Air Fuel Imbalance. ... light on. Found code p1174. Checked data stream and all pids appear to be in range. Long term fuel trim -4, short term between 2 and -3 at idle. Vacuum correct for my area, 02 switching fine between 82 and 820. MAF reading a little higher than what I norma... |
September 08, 2016 |
