Hi guys I'm getting a swap done on my 01 accord and it's almost done. I was going to use the h22a4 5spd ecu that came with my motor but since I must get the honda dealer to reprogram the my keys with that prelude ECU which I really don't want to do unless I have to. I found a 96 OBD2 5spd P13 ecu local and wanted to know if I could run the h22a4 with it with out a problem since this ecu does not come with the immobilizer but still is OBD2.


My question is would the OBD 2 P13 ECU run the car right? I've heard that the Injectors are not the same with the H22A and H22A4 and that it could cause it to run right or rich, I've also heard it would be fine because the flow rate are the same. This is an exmaple below, if this is fine then I'm buying this ecu today so your help is very appreciated I really don't want to deal with the dealer with clearing my keys and reprogramming them so I hope this is a 96 P13 Ecu is works and what you guys would suggest


Also will I need to use some type of Conversion Harness to use the 96 OBD2 P13 ecu with the H22A4 motor or do both ecu's plug up the same way.

https://honda-tech.com/zerothread/1711409


Modified by dreman24 at 5:55 AM 8/10/2006

 

afaik you would need an obd2b to obd2a jumper, but I would wait for more info from otehrs on here.

as far as injectors, yes they are different. but that doesnt matter. the injectors in the a4 are 290cc when measured at full flow at 43psi, but the stock fpr runs them at closer to 50 psi, which allows the injectors to flow at around 310-320cc.
the 92-96 injectors flow at 345cc at 43psi. the fpr on those engines is more like 36-38 psi, which means they flow more like 310-320cc.

 

That's what I was thinking if I had to use that harness I guess once I can confrim this I might go ahead and buy the harness if I can get the ECU for a decent price local. If not I'll get the keys and immobilize reprogrammed at the dealer since that might be cheaper.

 

call teh dealer and get the price on the reprogram, usually the 96 p13s go for $200-300, plus a harness will be around $70-120 as well.

 

Very true I've heard the dealer will charge about $150 so I might just use the H22A4 ecu and get that done.