Tacowhip
NAXJA Forum User
- Location
- New Jersey
I recently had a check engine light come on, and the idle would drop like it was going to stall, then bounce right back to normal. It does this time to time with no light, but now it threw a light. I checked the blink codes with the 2x key switch cycle procedure, and got a 12, a 21, and a 55 indicating end of codes. In that order. I'm assuming it's my o2 sensor (code 21) since I disconnected my battery recently (code 12).
The engine has always had very intermittent strange idle symptoms. Recently upon startup on a cold engine, the rpms would be high, and only come down when I bump the accelerator pedal. I cleaned the throttle body and replaced the tps and iac valve a few months ago. But, I'm wondering if since my o2 sensor was going south, it ran rich and gummed up the iac valve and throttle body again? Thoughts?? Another clean out?
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The engine has always had very intermittent strange idle symptoms. Recently upon startup on a cold engine, the rpms would be high, and only come down when I bump the accelerator pedal. I cleaned the throttle body and replaced the tps and iac valve a few months ago. But, I'm wondering if since my o2 sensor was going south, it ran rich and gummed up the iac valve and throttle body again? Thoughts?? Another clean out?
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