P1406 Diagnostic Trouble Code Discussion for March 2004
EGR Valve Pintle Position Circuit Malfunction
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| Help Request | Posted | |
| 1996 Pontiac Grand Am GT 3.1L Poor Idle Quality, MIL Lamp on VIN: 1G2NW52M9T P1406: EGR Valve Position Sensor Performance. this one has got me baffled. aftrer replacing pcm and egr we stiil have the same problem. at idle, the egr valve is open 20%. the pcm is not commanding it open, and we ran it with the exhaust removed with same results.what could be causing the valve to open? w... |
March 02, 2004 | |
| 2001 Ford E-150 Econoline 4.2L MIL Lamp on VIN: 1FTRE14291 P1406: DPF EGR sensor upstream hose off or plugged. Hope everyone out there has plenty of work. Our shop has a 2001 ford E150 with a 4.2l that has a code 1406. We have serviced many work vans for air express with same code and fixed them with small dpfe sensors. The last ones we fixed we also replaced egr solen... |
March 03, 2004 |
