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P1406 Diagnostic Trouble Code Discussion for August 2004

EGR Valve Pintle Position Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1406
Help Request Posted
1996 Honda Passport LX 3.2L Poor Idle Quality, MIL Lamp on, high idle VIN: 4SGCK58V0T
P1406: EGR Valve Pintle Position Sensor Circuit Malfunction. I suspect voltage back feeding in ecm through the ground side, but really hate to condemn an ecm. I almost never work on the passports since I am primarily a Toyota shop and thir ecms don't fail. I am sure I am overlooking something obvious here. Also Alldata ...
August 06, 2004
1996 Honda Passport LX 3.2L Poor Idle Quality, MIL Lamp on, high idle VIN: 4SGCK58V0T
P1406: EGR Valve Pintle Position Sensor Circuit Malfunction. I suspect voltage back feeding in ecm through the ground side, but really hate to condemn an ecm. I almost never work on the passports since I am primarily a Toyota shop and thir ecms don't fail. I am sure I am overlooking something obvious here. Also Alldata ...
August 09, 2004
1994 Oldsmobile 88 Royale 3.8L MIL Lamp on VIN: 1G3HN52L8R
P1406: egr pintle position sensor ckt. ... being drove aprox 1000 miles. With the same codes in memory P0401 and P1406. I have cleaned the EGR ports and replaced the EGR valve twiced the second time was with a AC delco part and still getting the same code. I have test...
August 25, 2004
1995 Ford Windstar 3.8L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2FMDA51485
P1406: dpfe downstream hose off. Hi super techs, this vehicle we think needs a computer, but before we do, I'd like to rattle the cage. We find no ground signal to injector #6. Pin 99 out of computer not grounding. Customer states at times it drops other cylinders. Cleared codes and these, pl...
August 31, 2004