I have a b16a obd0 motor in my 1990 integra. Will the pr3 chip work?

 

If its the PR3 ECU, then it should work. But I've never heard of a PR3 chip before. Tell us more about your PR3 chip. Where did you get it anyways?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMCivicEF9 &raquo;</TD></TR><TR><TD CLASS="quote">If its the PR3 ECU, then it should work. But I've never heard of a PR3 chip before. Tell us more about your PR3 chip. Where did you get it anyways?</TD></TR></TABLE>

lol, yeah sounds fishy to me too. for your B16a use PWO or PR3 ECU.

 

If you're asking if you can put a PR3 chips in your stock Integra computer to run the B16a, the answer is no. You need a PR3 or PW0 computer.

 

Oh its my mistake for calling it a pr3 chip, I meant the whole ecu. Thanks for the info guys

 

Will the pr3 ecu plug in directly to my stock wiring harness, or do I have to make any alterations to the harness for it to work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HybridIntegra &raquo;</TD></TR><TR><TD CLASS="quote">Will the pr3 ecu plug in directly to my stock wiring harness, or do I have to make any alterations to the harness for it to work?</TD></TR></TABLE>

Yes, The PR3 or PW0 is a non-OBD (or OBD0) Vtec ECU. It is plug and play!

 

Thanks a lot, you guys have been alot of help.

 

you have to plug in the ecu and then run you vtec wires. for pr3 there should be 4 wires. solenoid, pressure, ground, knock sensor. if it is pw0 there is no knock sensor. so if you did the swap and are thinking you can just put the pr3 ecu in and youll get vtec. you wont. but in a sense it is plug and play.

 

So what would I need to do to hook up the vtec if I swaped the ecu? What does running the vtec wires consist of?

 

Vtec solenoid is A8, Vtec pressure switch is B5 (then the other wire is ground), Knock sensor is B19.