ok i just picked up a 90 crx si... it has a d16y8 in it but the motor is running the obd0 set up i believe that came on the si, so the whole harness is untouched and car runs awesome just need help with the whole vtec thing cuz he had it with a normal switch... so is the best thing to do wire the vtec to an rpm switch.. a vtec controller or is there a way i can through a p28 in it? any help will be great thanks

 

Yes, go obd1.

boomslang.us. makes great conversion harrnesses. There are tons of how to in the FAQ.

Also this is a great how to video
http://www.youtube.com/watch?v=YQ4j-MBnLQo

 

so pretty much buy the harness install it and throw a p28 and im good. sounds fair ay other way for a meanwhile install

 

with the conversion harness u will need the obd1 dizzy, a 4 wire o2 sensor, and the p28. a vtec controller is a cheaper method, but the od1 conversion is supposed to run smoother. i didnt find that to be true when i converted mine over, if it wasnt for the fact that i need to bar mine i would go back to obd0 and sell off this obd1 stuff. but thats just my opinion since i couldnt tell a difference between the 2, i guess results may vary.

 

QUOTE=SoCal B18b 4dr]with the conversion harness u will need the obd1 dizzy, a 4 wire o2 sensor, and the p28. a vtec controller is a cheaper method, but the od1 conversion is supposed to run smoother. i didnt find that to be true when i converted mine over, if it wasnt for the fact that i need to bar mine i would go back to obd0 and sell off this obd1 stuff. but thats just my opinion since i couldnt tell a difference between the 2, i guess results may vary.[/QUOTE]
so wat would you recomend using the both of them obd0 and run a vtec controller?[

 

i cant teall u which one is better, it depends on ur state smog laws and mostly on ur pocket book. the vtec controller is the cheaper of the choices.

 

florida = no smog so now can you tell me

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redb16coupe &raquo;</TD></TR><TR><TD CLASS="quote">florida = no smog so now can you tell me</TD></TR></TABLE>

Dont half *** it, do it right.

Less problems later.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ***$nyper &raquo;</TD></TR><TR><TD CLASS="quote">Yes, go obd1.

Also this is a great how to video
http://www.youtube.com/watch?v=YQ4j-MBnLQo


</TD></TR></TABLE>

Wat?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIred91 &raquo;</TD></TR><TR><TD CLASS="quote">

Dont half *** it, do it right.

Less problems later.</TD></TR></TABLE>so wat jumper harness and p28? or pr3?

 

u wont get a deffinate answer on which way u should do it, some are going to say do the obd1 conversion and others will say use a vtec controller and call it a day....

 

Use a stock p28 and harness.