JDM FZJ, terrible idle, everything tried (SOLVED) (1 Viewer)

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So I know that in the first post you have replaced your O2, so I did not mention what happened to my truck when my O2's went bad. But I had very similar symptoms imo.
 
So I know that in the first post you have replaced your O2, so I did not mention what happened to my truck when my O2's went bad. But I had very similar symptoms imo.
Odd thing is I never had an o2 related code. All that came up was the ecu side temp sensor. Once I swapped that and reset the ecu, only THEN did the 21 code pop up.

hopefully this is my issue and someone with a similar head-scratcher can find this thread and prove use.
 
Update all. The o2 replacement solved the problem completely. I’m happy I got everything sorted out though!
Can you update the title with "SOLVED" as the prefix. That way someone searching the forums for a similar issue will see there is a fix provided.
 
Can you update the title with "SOLVED" as the prefix. That way someone searching the forums for a similar issue will see there is a fix provided.
Of course! Good call.
 
I call this thread:

ULTIMATE PARTS CANNON!
 

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