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P1404 Diagnostic Trouble Code Discussion for September 2009

EGR Position Sensor Rationality Closed


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Trouble Ticket Help Requests for DTC P1404
Help Request Posted
1998 Chevrolet C1500 Silverado 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge VIN: 1GCEC14W9W
P1404: EGR Valve Closed Position Performance. thanks in advance guys.this has been a good one.SITTING STILL AT IDLE THE ENGINE RUNS PRETTY SMOOTH.WHILE DRIVING AT ABOUT 1500 TO 2000 RPM THE ENGINE STARTS TO BUCK AND SPARK KNOCK "REALY BAD".AT FULL THROTTLE IT SMOOTHS BACK UP AND RUNS GREAT.ALL FUE...
September 29, 2009
1998 Chevrolet C1500 Silverado 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge VIN: 1GCEC14W9W
P1404: EGR Valve Closed Position Performance. thanks in advance guys.this has been a good one.SITTING STILL AT IDLE THE ENGINE RUNS PRETTY SMOOTH.WHILE DRIVING AT ABOUT 1500 TO 2000 RPM THE ENGINE STARTS TO BUCK AND SPARK KNOCK "REALY BAD".AT FULL THROTTLE IT SMOOTHS BACK UP AND RUNS GREAT.ALL FUE...
September 30, 2009