2006 GMC Sierra 3500 "egr code po403" Questions

...code read po403 egr valve , warrenty covered new part and approx 600km down the road light came on again reading code po678 This code is a cylinder number 8 glow plug failure. These can be read using ...

...code po403 , po406? PO403 is a bad egr circuit & 406 is a bad egr valve. 403 may be triggering 406. Make sure the wiring is in tact with good voltage & ground connectors first. repair 406, ...

...code po403/po404 Rac recovered my driver from a breakdown he cleaned the egr valve and then driver drove home on limp mode.... diagnosed with po403/po404 so i have replaced the egr valve and now the ...

...PO403= EGR flow circuit malfunction. I have replaced the battery and EGR with new ones. Can someone tell me what needs to be replace or repaired? I thank you in advance for you consideration. :-) If ...

...ACTIVITY CONDITIONS. CODE PO403 - EGR SOLENOID CONTROL CIRCUIT MALFUNCTION. CODE PO405 - EGR POSITION SENSOR CIRCUIT LOW INPUT CONDITIONS. PROBLEM COULD BE THE EGR SOLENOID OR EGR POSITION

...code: PO403, EGR circuit malfunction, where should I be looking? Thanks. egr valve is located near exhaust manifold...exhaust gas recirculation or egr valve ports some exhaust fumes back to the inlet ...

...code p 0403 refers to EGR --circuit malfunction===causes --wiring---EGR solenoid --ECM replacing the valve probably not the problem as there is a separate solenoid to work the valve and that is what ...

...EGR POSISTION SENSOR,OR IS UNPLUGGED(po403) if this is the 6.0 then the first code p0128 is for a coolant temp not reaching operating temp. (bad temp sensor) now on the second one p0403 i can't find ...

...code EGR flow malfuntion. Have replaced EGR valve, have check wiring from egr to engine control can't find any problems, but code keeps coming on after cleared, engine dies, but restart fine. Have ...

...code on 2002 PT Cruiser PO403. How do I fix this? IF IT IS THE CHECK ENGINE LIGHT YOU CAN GO TO AUTO ZONE OR WHAT EVER YOU HAVE LIKE IT IN YOU AREA AND THEY WILL DIAGNOSE IT FOR FREE AND SOME TIMES ...