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2004 chevy trailblazer_lt
5 Posts
Discussion Starter · #1 · (Edited)
I hope I'm posting in the right place, it's my first time. So I changed my spark plugs today and started up the truck and no SES light. I decided to clean the TB since I was having a rough idle issue. I followed the instructions in the DIY section and they were very helpful. Anyway, after I was done and started it up I got the SES light on. Called ONSTAR and they gave me the codes P0122 and P0223. However.... the truck is running perfectly and sounds great. As instructed, I pulled the two PCM fuses out for 15 minutes before starting it. What do you think is going on? thanks.

Update- Solved
Waited about another half hour.... Restarted.... SES light and codes are gone. Drove for an hour on the freeway. purrrfect!
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