Hello, I am swapping an euro-r h22a into my 94 accord lx and I am trying to figure out my ecu options. I have an ecu from a 93(?) prelude with an vtec h22 in it but i was told that will not work and other than that I have the ecu that came in the accord. I was told my only option is to find a p72 or a p28 have it chipped and tuned but cant i find a stock ecu and run it, stock? the engine is stock with an intake and header. any help would be great.

Thanks in advance!!

 

the euro r is obd2. You will want to get a obd2 to obd1 conversion harness a chipped p72 ecu with h22 base map and have it tuned (preferably on a dyno if you want to get all your power out of it)

 

i have an obd-1 harness, obd-1 chassis, obd-2 engine, can i use an obd-1 ecu?

 

yes the p72 ecu is what you need...its obd1. Running a p13 I don't think will run your engine all that well. B/c of the cam's and the higher compression. So it will have a different tune (air fuel ratio).

But you will need a obd2 to obd1 conversion harness since the engine is obd2 and your chassis is obd1. There are sensors that obd2 uses that obd1 doesn’t.

So you will need...

-obd2 to obd1 conversion harness

-chipped p72 ecu

-Good tune

 

where would the conversion harness convert? would it attach to the engine and then the accord/prelude harness attach to that? I dont like working with electricity as it often times confuses me and gets frustrating. So please explain what conversion harness I am looking for, thanks a million in advance. and would a p28 chipped ecu work?

 

**Official**DIY: OBD2 to OBD1 Conversion

* * OBD1 B-series engine into OBD2a/OBD2b civic/integra * * - Honda-Tech

Read thos and if you have more questions just ask

 

you can run a p28 but it won’t run your IAB's. The p72 WILL run your IABs....humm I have to think about this I donno if the euro-r runs IABs in the manifold...I get back to you on that.