Description Chrysler OBD-II Trouble Code Description for P1491 Alfa Romeo Rad Fan Control Relay Circuit OBD-II Trouble Code Description for P1491 Alfa Romeo Secondary Switch Solenoid Circuit Malfunction OBD-II Trouble Code Description for P1491 Alfa Romeo EGR Valve Lift Insufficient Detected OBD-II Trouble Code Description for P1491 Alfa Romeo EGR Valve Lift Insufficient Detected OBD-II…
Tag: P1491
P1491 Acura Rad Fan Control Relay Circuit
Description Chrysler OBD-II Trouble Code Description for P1491 Acura Rad Fan Control Relay Circuit OBD-II Trouble Code Description for P1491 Acura Secondary Switch Solenoid Circuit Malfunction OBD-II Trouble Code Description for P1491 Acura EGR Valve Lift Insufficient Detected OBD-II Trouble Code Description for P1491 Acura EGR Valve Lift Insufficient Detected OBD-II Trouble Code Description for…
P1491 NISSAN SENTRA Secondary Switch Solenoid Circuit Malfunction
Possible causes – Vacuum cut valve bypass valve– Vacuum cut valve– Bypass hoses for clogging– EVAP control system pressure sensor and circuit– EVAP canister vent control valve– Hose between fuel tank and vacuum cut valve clogged– Hose between vacuum cut valve and EVAP canister clogged– EVAP purge port of fuel tank for clogging Tech description…
P1491 NISSAN Vacuum Cut Valve Bypass Valve
Possible causes – Vacuum cut valve bypass valve– Vacuum cut valve– Bypass hoses for clogging– EVAP control system pressure sensor and circuit– EVAP canister vent control valve– Hose between fuel tank and vacuum cut valve clogged– Hose between vacuum cut valve and EVAP canister clogged– EVAP purge port of fuel tank for clogging Tech description…
P1491 INFINITI Vacuum Cut Valve Bypass Valve
Possible causes – Vacuum cut valve bypass valve– Vacuum cut valve– Bypass hoses for clogging– EVAP control system pressure sensor and circuit– EVAP canister vent control valve– Hose between fuel tank and vacuum cut valve clogged– Hose between vacuum cut valve and EVAP canister clogged– EVAP purge port of fuel tank for clogging When is…
P1491 HONDA Exhaust Gas Recirculation Valve Insufficient Lift
Possible causes – Exhaust Gas Recirculation Valve harness is open or shorted– Exhaust Gas Recirculation Valve circuit poor electrical connection– Faulty Exhaust Gas Recirculation Valve– Exhaust Gas Recirculation Valve clogged– Exhaust gas leaks Tech description In some 1999
P1491 DODGE Eva Leak Monitor Pinched Hose Found
P1491 DODGE Eva Leak Monitor Pinched Hose Found
P1491 ACURA Exhaust Gas Recirculation Valve Insufficient Lift
Possible causes – Exhaust Gas Recirculation Valve harness is open or shorted– Exhaust Gas Recirculation Valve circuit poor electrical connection– Faulty Exhaust Gas Recirculation Valve– Exhaust Gas Recirculation Valve clogged– Exhaust gas leaks Tech description EGR flow malfunction could be caused by a clogged EGR valve or EGR tube. Before replacing any parts try cleaning…