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2001 Chevrolet Blazer LS 4.3L Surge, MIL Lamp on
Posted to GM Driveability on 3/9/2004 11 Replies

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...

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  Related Documents & Media  2001 Chevrolet Blazer LS

 
Message Closed w/Summary

car Vehicle Data

2001 Chevrolet Blazer LS

VIN 1GNDT13W11
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CFI
EmissionsOBD-II Compliant
SymptomsSurge, MIL Lamp On
OccursUnder Load
Misc.4 Door 4WD

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0404EGR Control Circuit Range/Performance
Message Closed w/Summary

car Vehicle Data

2001 Chevrolet Blazer LS

VIN 1GNDT13W11
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CFI
EmissionsOBD-II Compliant
SymptomsSurge, MIL Lamp On
OccursUnder Load
Misc.4 Door 4WD

Trouble Codes

P0101Mass Airflow Sensor Range/Performance
P0404EGR Control Circuit Range/Performance