ECU hell

I need some ideas please! I'll try to be brief: Was having rando codes for over a year, almost went broke replacing parts that weren't really bad. Clearing the codes with my $50 scanner worked for a few weeks at a time. Codes got more frequent, bought a used ecm on ebay, did the youtube paper clip reprogramming/reset trick, truck cranks but no start (immobilizer?). All kinds of codes and flashing icons. Put the old ecm back in, same thing. Now I have a giant paperweight in my driveway

 

Btw, its a 2008 5.7L

 

Any hack to sync the vin without calling a towtruck? Thanks

 

Also why wont the old ecu work if its just vin locked?

 

Thanks for the reply. Could a toyota dealer reprogram the ecu and vin if i just take them the ecu (without the truck attached)?

 

Possibly, but they probably won't. It should be a 1 hour diagnostic fee to have them reprogram the VIN for you. Orrrrr, you go down the path of techstream.

You can search this forum for ECU recovery and it'll get you sorted. You're not the first.

Regarding the old one not working, if it was already on its way out, the power loss could have just sealed its fate.

 

Thank you

 

My search criteria wasnt as good as I would have preferred. Here you go:

https://www.tundras.com/threads/how-to-recover-replace-ecu-thread.141787/#post-3566064