× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P1406 Diagnostic Trouble Code Discussion for August 2007

EGR Valve Pintle Position Circuit Malfunction

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1406
Help Request Posted
2004 Ford Mustang GT 4.6L MIL Lamp on VIN: 1FAFP42X54
P1406: Diesel particulate filter EGR- downstream hose off /plugged. This car came in with a P1406. Cust request a tune up and we recomment a motor vac to decarbon engine, guess did'nt work. MIL is back on for same reason. Any Ideas?? Thanks Mirza.
August 09, 2007
1996 Chevrolet S10 4.3L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GC1S67X9T
P1406: EGR Valve Pintle Position Circuit Malfunction. Just fixed a wierd one. Above codes and no 5 volt refernce from VCM to TPS or MAP. At times it had 1-2 volts on 5 volt reference wire. This truck had a Dealer install a VCM and no fix- they said it spiked all the sensors and needed them all replaced. Sounded l...
August 24, 2007