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Hey guys, so I did an engine swap from a early 2000s tundra to a 2001 sequoia, I confirmed before the swap the engine was running. Now I'm getting all kinda of miss fire codes, 02 sensors seem to be reading okay double checked all the harness connections there all good. The only notable difference was the throttle body the doner had a cable style throttle, where this one is fly by wire so I had to swap them out.
I'm at a bit of loss like I said it was running before the swap now its rough, only codes are for miss fires.
 

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FWIW, all my problems regardless of codes have been due to a dirty MAF sensor, though had to 'eat' the cost of new O2 sensors to learn it. :(
 
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