× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2007 Chevrolet Express 3500 4.8L MIL Lamp on
Posted to GM Driveability on 1/7/2011 9 Replies

I have this 2007 Chevy Van 4.9L that has a P0430 that keeps comming back. The Cat has been replaced twice but with factory GM products. The Up Stream Oxygen Sensor was also repalced. At first it was showing misfires on back 2 with excessive back pressure and h...

9 Replies Received (View Replies)

  Related Documents & Media  2007 Chevrolet Express 3500

 
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Express 3500

VIN 1GCHG39V47
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Express 3500

VIN 1GCHG39V47
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0430Catalyst Efficiency Below Threshold (Bank 2)