i picked up a 92 integra from a guy a little while ago. it has a b18b1 engine in it. and it has a pr3 ecu. everything i found when searched is that the pr3 ecu is a obd0, but ppl i talked to say that 92+ tegs are obd1. which one is it?

i picked up a b18c1 long block that i will be droping in. thats from a obd2 car. i shouldnt have a problem using it since im using the existing wiring harness on the car now + vtec dizzy.

one last question, how would the pr3 be when it comes to tunning on neptune when boosted? most of the builds i see ppll using p28's

 

ECU Identification
http://www.hondata.com/techecuid.html

there are both obd0 and obd1 versions of the pr3.

 

one thing id recommend to learn is how to read ECU codes. if you know how to do this youll never have a problem knowing what OBD it is lol. But to make it easier OBD0 has a circle led display on the front whereas an OBD1 ecu does not.

 

are you refering to reading the serial number or pulling the check engine codes? either way how does that tell you which OBD the ecu is?

 

Except the early cb7 accord.. they have the older style obd0 ecu with the led window, yet are obd1

 

ok thanks for all the input guys. i still have questions about turboing using the pr3, will that ecu cause any limitaions down the road?

 

if its obd1 then you can chip/tune just like any other obd1 ecu