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2005 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on
Posted to GM Driveability on 11/2/2010 4 Replies

back now with same problem. performed egr activation test and all % match des and acutual and maf drops dramatically. maf 48 no egr, 28gs with 10% egr, 3gs with 30%. performed amp test on 5vlt term a to b= .165. tested volt drop on b to grn .05volts. calculate...

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  Related Documents & Media  2005 Chevrolet Silverado 2500 HD

 
Message Closed w/FIX

car Vehicle Data

2005 Chevrolet Silverado 2500 HD

VIN 1GCHK23225
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
Misc.4X4 4Dr

Trouble Codes

P0401EGR System Insufficient Flow Detected
P0404EGR Control Circuit Range/Performance
P1404EGR Valve Stuck Closed Malfunction
Message Closed w/FIX

car Vehicle Data

2005 Chevrolet Silverado 2500 HD

VIN 1GCHK23225
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
Misc.4X4 4Dr

Trouble Codes

P0401EGR System Insufficient Flow Detected
P0404EGR Control Circuit Range/Performance
P1404EGR Valve Stuck Closed Malfunction