
2001 Chevrolet Blazer LS 4.3L Surge, MIL Lamp on
This Blazer will surge from 32 mph to 48 mph half throttle 2nd gear under load monitored data in graphing mode while vehicle is surging here is what I observed EGR bounces from .90v(closed) to 4.40v (wide open) MAF varies slightly O2 sensors are switching norm...
Summary posted 3/23/2004
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Message Closed w/Summary
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VIN | 1GNDT13W11 |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / CFI |
Emissions | OBD-II Compliant |
Symptoms | Surge, MIL Lamp On |
Occurs | Under Load |
Misc. | 4 Door 4WD |
Trouble Codes
P0101 | Mass Airflow Sensor Range/Performance |
P0404 | EGR Control Circuit Range/Performance |
Message Closed w/Summary
Vehicle Data
2001 Chevrolet Blazer LS
VIN | 1GNDT13W11 |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / CFI |
Emissions | OBD-II Compliant |
Symptoms | Surge, MIL Lamp On |
Occurs | Under Load |
Misc. | 4 Door 4WD |
Trouble Codes
P0101 | Mass Airflow Sensor Range/Performance |
P0404 | EGR Control Circuit Range/Performance |