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2008 GMC W3500 Forward W3S042 6.0L MIL Lamp on
Posted to GM Driveability on 10/16/2012 4 Replies

Hello all and thank you in advance for any help. This truck has been in for these same problems once before. The customer had it at a dealer in Joliet and they declined replacement of the MAF sensor. I have checked Cat. back pressure and it was less than 2 psi...

4 Replies Received (View Replies)

  Related Documents & Media  2008 GMC W3500 Forward W3S042

 
Message Closed w/FIX

car Vehicle Data

2008 GMC W3500 Forward W3S042

VIN [No VIN Available]
Engine6.0 L / 8 cyl / GAS
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/FIX

car Vehicle Data

2008 GMC W3500 Forward W3S042

VIN [No VIN Available]
Engine6.0 L / 8 cyl / GAS
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)