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2003 Pontiac Grand Am SE 3.4L Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 9/3/2008 10 Replies

a brief thanks to all. first i have ran into this problem dont know where to start. customer came in one day about needing a tune up . just plugs ..request by customer. replaced plugs cust. takes car home a week later car gets tow in, fuel pump went out replac...

10 Replies Received (View Replies)

  Related Documents & Media  2003 Pontiac Grand Am SE

 
Message Closed w/FIX

car Vehicle Data

2003 Pontiac Grand Am SE

VIN 1GNNF52E63
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

2003 Pontiac Grand Am SE

VIN 1GNNF52E63
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)