P1404 Diagnostic Trouble Code Discussion for January 2006
EGR Position Sensor Rationality Closed
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| Help Request | Posted | |
| 2001 Buick Century Custom 3.1L MIL Lamp on VIN: 2G3WS52J01 P1404: EGR Valve Closed Position Performance. Hello all this buick was handed to me after failing emission test for state ins. Ran flow chart for code and came up with bad egr valve.Replaced valve with a/c delco same prob. Ecm shows zero comand and sensor sig. shows 12% the learned minimum shows 0.47 and ... |
January 06, 2006 |
