DTC U1161 Buick
Boost Pressure Control Valve Short to B+
Boost Pressure Control Valve Short to B+
Description
Engine started, battery voltage at least 11.5v, all electrical components off, ground connections between engine and chassis well connected, coolant temperature at least 80-degrees Celicius. The ECM detected an short in the boost pressure control valve.
Cause and Solution
Charge air pressure sensor is faulty Voltage supply to the charge air pressure sensor is open or shorted Check the charge air system for leaks Recirculating valve for turbocharger is faulty Turbocharging system is damaged or not functioning properly Turbocharger recirculating valve is faulty Vacuum diaphragm for turbocharger is out of adjustment Wastegate bypass regulator valve is faulty Boost sensor has failed ECM has failed
Video Guide
Diagnostic Info
- DTC Code: U1161
- Brand: Buick