hey guys i have a question if you can answer it great, i have an 89 crx hf and im building and ls vtec for it i have a b16a2 head i want to switch over to obd1 to run a p28 do i have to change the entire wiring harness in the engine bay or do i only have to buy a jumper harness for the ecu?

 

No..Dont change the entire wire harness..

Just get a obd0-obd1 conversion harness,obd1 ecu,dizzy and 4 wire o2..

 

if the block is OBD-0 then just a jumper and some plugs for the VTEC stuff,dizzy, and O2

check here >> http://WWW.RYWIRE.COM for custom wiring and jumpers

 

thanks alot man.

 

you also have to make a dizzy wiring harness to convert the pics

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow90hatch &raquo;</TD></TR><TR><TD CLASS="quote">you also have to make a dizzy wiring harness to convert the pics</TD></TR></TABLE>

You can either get the distributor jumper harness or just repin the distributor plugs. Basically all you are trying to do is have two mating plugs. Just different routes to get there.

And for the post, use your stock engine harness, conversion harness and add plugs where required.

Jason
http://www.JKobd.com

 

do not run a p28 that's for sohc vtec
use a gsr ecu its p70something

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16vtecx &raquo;</TD></TR><TR><TD CLASS="quote">do not run a p28 that's for sohc vtec
use a gsr ecu its p70something</TD></TR></TABLE>

I am sure he is going to chip it.

 

"do not run a p28 that's for sohc vtec
use a gsr ecu its p70something"......

are U serious?????? man you are missing the whole point??
flash a dohc program via a 29c256 eeprom chip and no need. ****, if you wanted to, you could run an h22a with that ecu, just need a different program.