Filip_93si

So I just bought a 93 si that has an f22a1 not h23. The car runs pretty rich. from what I can see the car was turbo at one point. I think the ecu had to be tuned while it was turbocharged for more power. has anyone had a similar problem or know how I can check if the ecu is what's actually causing it to run rich or if its something else. any helpful info would be great. Thanks

TypeT

get the stock ecu first

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Honda Prelude 1997 2.2 VTI

Filip_93si

I found a 94 type s with the f22 at a junkyard if I take the exit out of that will I be able to just swap my current one with that?