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My engine d17a1 lx 2003 blew on me a few months ago and replaced it with a d17a2 ex 2005. I am having trouble finding out whare the other 02 sensor plugs in. the one in front the cat plugs in to the connecter on the harness but the one further back has no place to plug in. Whats up with that. Can anyone me out. I need to pass inspection. cant keep dodgeing cops forever.

 
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Did you ever figure this out? I need the same information.

 
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hey guys I had the same problem and no one would help me out but it's your luckyday i have all the info you need let me check my stuff and i'll post it for ya

 
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do you have EX or LX ECU

 
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I need to know what ECU you are running on

 
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I made some pretty lengthy posts about this. Try searching for my username and you'll find the answer.