P1781 Diagnostic Trouble Code Discussion for April 2015
O/D Pressure Switch Sense 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 P1781
| Help Request | Posted | |
| 2004 Chevrolet Aveo 1.6L MIL Lamp on VIN: KL1TD52654 P1781: Engine Speed Signal Malfunction. these 3 codes p0300 p0700 91781 keep coming back as soon as you get to 20 mph we did the valve bulliten 05-06-01-030d and all where replaced with new seals. runs fine also speedo only reads half of speed going installed new speed sensor and did not change than... |
April 09, 2015 | |
| 2004 Chevrolet Aveo 1.6L MIL Lamp on VIN: KL1TD52654 P1781: Engine Speed Signal Malfunction. these 3 codes p0300 p0700 91781 keep coming back as soon as you get to 20 mph we did the valve bulliten 05-06-01-030d and all where replaced with new seals. runs fine also speedo only reads half of speed going installed new speed sensor and did not change than... |
April 13, 2015 |
