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P1406 Diagnostic Trouble Code Discussion for October 2004

EGR Valve Pintle Position Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1406
Help Request Posted
1997 GMC Savana 1500 5.7L No Start, MIL Lamp on, pings VIN: 1GKFG15R3V
P1406: EGR Valve Pintle Position Circuit Malfunction. Customer brought the van pinging badly on acceleration, enough that it made me wince to drive it. Checked codes, MAF code, EGR pintle, and a freeze frame code for TPS in memory. Checked datastream, the baro reading is at 53 kpa, only about half of what it shou...
October 09, 2004
1997 GMC Savana 1500 5.7L No Start, MIL Lamp on, pings VIN: 1GKFG15R3V
P1406: EGR Valve Pintle Position Circuit Malfunction. Customer brought the van pinging badly on acceleration, enough that it made me wince to drive it. Checked codes, MAF code, EGR pintle, and a freeze frame code for TPS in memory. Checked datastream, the baro reading is at 53 kpa, only about half of what it shou...
October 09, 2004