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Discussion Starter · #1 ·
Hello Everyone!

My integra got stolen while I was in class, so I decided to buy a 2010 Corolla at an auto auction.

It had a super screwed up motor and it needs to be replaced. so I have a question about it.
In Honda engines, I could put a b20 and run it off a b18 Ecu and random stuff like that.

My Corolla has a 'U' in the 5th Digit. Can I use a motor with a 'J' in the 5th digit?

Does it make any difference? they look the same, I don't want to need to change out the ECu to run the motor, cause all the key stuff could be a problem


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