| 2003 Chevrolet Trailblazer LT 4.2L MIL Lamp on Hello every one, i have a chevy here that came to me from another shop. Owner said it had been misfiring so he had plugs changed and plug wires as it also had loss of power. I checked the basics such as filters, fuel and air and oil quality,all were good but t... 
                        
                            Summary posted 4/16/2013
                               
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 | Message Closed w/Summary 
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| VIN | 1GNES16S73 | 
| Engine | 4.2 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
| P0756 | Shift Solenoid Valve 'B' Stuck Off | 
| P1137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Low Voltage In Power Enrichment | 
| P1512 | Minimum Throttle Position Not Learned | 
| P1515 | Control Module Throttle Actuator Position Performance | 
| P1516 | Control Module Throttle Actuator Position Performance | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                2003 Chevrolet Trailblazer LT
| VIN | 1GNES16S73 | 
| Engine | 4.2 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0300 | Multiple Misfire Detected | 
| P0756 | Shift Solenoid Valve 'B' Stuck Off | 
| P1137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Low Voltage In Power Enrichment | 
| P1512 | Minimum Throttle Position Not Learned | 
| P1515 | Control Module Throttle Actuator Position Performance | 
| P1516 | Control Module Throttle Actuator Position Performance | 
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