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Sep 12, 2005 | 01:33 AM

dhag911

Thread Starter

Laughing Gas

Joined: Jul 2003

Posts: 893

Likes: 8

From: Lincoln, Nebraska

new code

I went on a 600 mile trip and the check engine light comes on and off then stays on after driving about 10 minutes on the highway never does it in town.

i pulled the codes and it said lack of heated oxygen indicating a lean condition bank one. once in a while when the weather starts turning to hot or cold in while get a running rich code. The air pump is NOT connected. which is the reason i think i am getting the codes. the truck ran its best on the trip then it has ever before. i have replaced the oxygen sensor about 9 months to a year ago. if you guys have any other input or just to varify that i am right let me

thanks