Q: Engine light consistently on. Rat chewed wires. Electronic control module scan. on 2004 Toyota Tacoma

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Wires replaced.ECM cleared and reset. New air/fuel ratio sensor installed. 60k tune up done. 4 new fuel injectors installed. Toyota dealerstill stumped. A month and $2,000 has gone by since the rat bit my taco. Dealer is now consulting with the national techies. Ever heard of anything
remotely like this?
(4) Answers
(5) Comments
They may be stumped because the rats didn't tell them about ALL of the wires they chewed. AND I would never offer a rat a bite of my taco! If rodents and wires are involved , it will require patience , and yes yours is not the only situation like that unfortunatly.
Thanks ziptie; I've got over 30 days of patience under my belt. I'll post resolution hopefully in a couple of days...

I don't have that info. I'll see if I can find out from the dealer, however, you would think that their knowing that would have directed them to the problem. So far codes have detected: chewed wires, fuel sensor,
and fuel injectors in that order.