My friend says he has an ob1 pr3 ecu, which ive never seen before,nor worked with. I was wandering if anybody new how to wire the vtec oil pressure, and solenoid. It is in a 94 civic lx. So if anybody could give me a link to a site, or share some info which wires goe where. There are only three wires, one of them which is the ground. Just need know where the 2 vtec wires go on the ecu.
thanx
chazz

 

pr3's are non obd... it's the one you get with Sir swaps

 

Yea the PR3 is non OBD... If you still need the pinouts this is what they are.... The pin for the VTEC solenoid is A8, B5 for the VTEC pressure, B19 for the KS, and C8 for the secondary oxygen sensor.... To run that ECU you'll need the nonOBD-OBD1 harness converter, injector resistor box, and the non OBD distributor... I would really just look into running a chipped P28 or P30 tho.... These are both OBD1 ECU's.... Latez

 

There is a OBD 1 Pr3. I know cause i'm running it. It's from a 92-93 JDM integra XSi with the obd1 B16. It is the same as a p30.

 

Really i didn't know the Xsi used a PR3... my bad... I guess you learn something new everyday... Latez

 

 

i am running an Xsi PR3 ECU, i think it is non-OBD type from 1991...

is this right?

anyways - here is the complete pin-outs for it,

http://www.geocities.com/b16aprelude/hondaengines.html

HTH,

t..

 

There is a obd 0 pr3 found on the pre-obd teg XSi's and in 92 they went obd-1 and the xsi went with a obd-1 pr3 ecu.

 

thanks, that is what i had supposed

t..

 

well i'll be dammed, i figured they woulda changed the code when they went obd1, looks like i'm wrong, it happens alot