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Discussion Starter #1
I got my Prelude 2001 engine swap last year from a mechanic. Looking at the block, it is H22a4 head on H22a block [I think the bottom is from a Honda Accord SIR]. When I started driving last year, the engine light came on.

This year I brought it back because I need an emission test. He could not fix it and said something is wrong with the EVAP.

Brought it to the dealership and after two days of checking, they said it's the ecu.

Did this swap ruined my ecu? What ecu should I get? HELP
 

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I doubt your ECU is bad. Sounds more like something isn't plugged in quite right. What Check Engine code is it throwing?
 
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