I know this will be a very straight forward swap, but what difference in wiring should I expect to encounter. I'm replacing the B18A1 in my 1991 GS with a B18A1 from my 1992 GS. Would it be easier to convert the '91 to OBD1 or keep it OBD0? Will all of the plugs on the stock harness plug into the 92 engine?

 

Just use the wire harness and change distributors!

 

If you want, I can trade you the parts need to go back to OBD0 and make it an easy swap. Let me know as i have all the parts needed.

Deetz

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Brian_92GSR &raquo;</TD></TR><TR><TD CLASS="quote">I know this will be a very straight forward swap, but what difference in wiring should I expect to encounter. I'm replacing the B18A1 in my 1991 GS with a B18A1 from my 1992 GS. Would it be easier to convert the '91 to OBD1 or keep it OBD0? Will all of the plugs on the stock harness plug into the 92 engine?</TD></TR></TABLE>

i did the same swap on my old 91 gs about a year ago. everything obd-0 on the old block was switched over to the 92 block. it was that simple. like the distributor, intake manifold, exhuast mani, and so on. it was fairly straight foward, but i think the obd-1 has an extra sensor on the back. i dont remember fully. if i remember correctly i just left it out. also i encountered a problem with the cooling fan switch. so i just wired the cooling fans to a toggle switch on my console. it worked great.

hope that helps