CEL code 45 too lean/rich
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New User
Joined: Aug 2001
Posts: 254
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From: Burnaby, BC, Canada
CEL code 45 too lean/rich
Hi,
I have a code 45 after installing an exhaust. Running too rich/lean. I reset but the light comes on after a short drive. Could an exhaust leak after the cat cause the o2 sensor to give a false reading? I don't think I'm running lean. I have itr cams, cam gears advanced intake cam 2 deg, aem cai, and an exhaust.
TIA
I have a code 45 after installing an exhaust. Running too rich/lean. I reset but the light comes on after a short drive. Could an exhaust leak after the cat cause the o2 sensor to give a false reading? I don't think I'm running lean. I have itr cams, cam gears advanced intake cam 2 deg, aem cai, and an exhaust.
TIA
Honda-Tech Member
Joined: Mar 2000
Posts: 1,690
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From: Formerly of SF moved to DFW and now back in SF, CA, USA
Re: CEL code 45 too lean/rich (Eeepers)
I was getting the same CEL when I had the CTR cams installed. Turns out my timing was waaayyy advanced. After I put it back to 16 degrees the CEL never came back on. After a while I advanced the timing to 18degrees and still no problem. I'd check timing first. Good luck!
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