
2007 Chevrolet Silverado 2500 HD WT 6.0L Hesitation, MIL Lamp on, Reduced power
Recurring code P0641 (5 volt ref circuit 1).Have seen the voltage drop out for a split second,down to .75volts. Have not been able to duplicate in the [...] wiggle tests of the sensors on that [...] wiring best as possible without ripping into it too [...] com...
FIX posted 6/28/2012
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Message Closed w/FIX
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VIN | 1GCHK24K27 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Hesitation, MIL Lamp on, Reduced Power |
Occurs | Intermittently |
Trouble Codes
P0641 | PCM Sensor Reference Voltage 'A' Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
2007 Chevrolet Silverado 2500 HD WT
VIN | 1GCHK24K27 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Hesitation, MIL Lamp on, Reduced Power |
Occurs | Intermittently |
Trouble Codes
P0641 | PCM Sensor Reference Voltage 'A' Circuit Malfunction |