I have a JDM OBD1 H22a that I am putting into a 97'Civic which of coarse is OBD2. And I have someone that has USDM OBD2 H22 and he is putting it into a 95 Del Sol OBD1. OK the question is he wants to trade ECU's so they will just plug in with out the conversion harness but I was just wondering if this would hurt the performance of my engine any or should I do it.

Thanks
Chris

 

man, you guys should just trade motors str8 across, so both of you will have a plug n' play engine swap for both of your cars. The problem that you're going to have is if you run a US OBD2, its going to look for the oil pump (CKP) sensor, 2nd 02 which will not be on your OBD1 engine. To remedy this, either get those parts or run a OBD2-OBD1 ecu jumper + OBD1 Prelude VTEC ecu (P13).

As far as you two trading ecu's....thats questionable, after what I've just mentioned. It's almost contradictory to trade if you already own an OBD1 ecu.

See if he'll trade you engines straight up, w/ecu and all.....then it will all work prooperly if you went with an OBD2 ecu and OBD2 engine.