Join Now
International Automotive Technicians Network

P0403 Diagnostic Trouble Code Discussion for October 2009

EGR Solenoid 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 P0403
Help Request Posted
2004 Mazda 6 S 3.0L Poor Idle Quality VIN: 1YVEP80CX4
P0403: EGR Valve Stepper Motor Circuit Malfunction. please help. i was dumb enough to take this job in.(customer begged). this veh. was at another shop cause engine was bad. other shop installed used engine and it was bad.the shop told customer to come get it unrepaired customer request a reman ENG install. ins...
October 14, 2009
2003 Mazda 6 S 3.0L No Start VIN: 1YVFP80D73
P0403: EGR Valve Stepper Motor Circuit Malfunction. Vehicle came in and would crank but not start when cold outside (under 40 degrees it seems), after you let it sit in shop for a couple hours it will start up fine. had no spark and no fuel when it wouldn't start, MIL was on with throttle actuator codes but sus...
October 21, 2009
2003 Mazda 6 S 3.0L No Start VIN: 1YVFP80D73
P0403: EGR Valve Stepper Motor Circuit Malfunction. Vehicle came in and would crank but not start when cold outside (under 40 degrees it seems), after you let it sit in shop for a couple hours it will start up fine. had no spark and no fuel when it wouldn't start, MIL was on with throttle actuator codes but sus...
October 22, 2009
2002 Saturn SC1 1.9L Hesitation, Cuts out, Stall VIN: 1G8ZP12862
P0403: egr solenoid control circuit. vehicle came in with above codes and egr valve connector disconnected. codes cleared. egr commanded % not matching actual egr %. egr replace with new a/c delco egr valve. vehicle test driven. idles perfect. under accel will kick and buck like a horse no matter...
October 27, 2009
2004 Mazda 6 S 3.0L Poor Idle Quality VIN: 1YVEP80CX4
P0403: EGR Valve Stepper Motor Circuit Malfunction. please help. i was dumb enough to take this job in.(customer begged). this veh. was at another shop cause engine was bad. other shop installed used engine and it was bad.the shop told customer to come get it unrepaired customer request a reman ENG install. ins...
October 14, 2009
2003 Mazda 6 S 3.0L No Start VIN: 1YVFP80D73
P0403: EGR Valve Stepper Motor Circuit Malfunction. Vehicle came in and would crank but not start when cold outside (under 40 degrees it seems), after you let it sit in shop for a couple hours it will start up fine. had no spark and no fuel when it wouldn't start, MIL was on with throttle actuator codes but sus...
October 21, 2009
2003 Mazda 6 S 3.0L No Start VIN: 1YVFP80D73
P0403: EGR Valve Stepper Motor Circuit Malfunction. Vehicle came in and would crank but not start when cold outside (under 40 degrees it seems), after you let it sit in shop for a couple hours it will start up fine. had no spark and no fuel when it wouldn't start, MIL was on with throttle actuator codes but sus...
October 22, 2009
2002 Saturn SC1 1.9L Hesitation, Cuts out, Stall VIN: 1G8ZP12862
P0403: egr solenoid control circuit. vehicle came in with above codes and egr valve connector disconnected. codes cleared. egr commanded % not matching actual egr %. egr replace with new a/c delco egr valve. vehicle test driven. idles perfect. under accel will kick and buck like a horse no matter...
October 27, 2009