I just got done going through about 15 pages of threads about wiring a b18a1 into a hatch thats already had the multipoint conversion.Some of them said its plug and play and some said there is more wiring to be done,but in all the links that were posted its only the dpfi to mpfi and no mention of the other wiring that needs to be done.So I'm just trying to get a definate answer.Like I said I have already searched and hated to ask this question but I am not clear on what all is involved.

Thanks,Bobby

 

if your car is already converted then it should be pretty much plug and play. an ls motor is basically a d series with an extra cam. all other sensors and everything else match up fine.

 

yea what he said. assuming your using an obd0 ecu and distributor.

 

So are u saying that I need to do some wiring for the extra cam or is the mpfi all I need?I appreciate the response but I'm kinda still in the same spot.If I'm being a dumbass and just not understanding I apologize.
And I am staying OBDO.

 

no extra wiring is needed.

 

if you are already MPFI, then you are fine. All you will have to do is swap on a plug for the alternator as the b series alternator plug is different. Myself, I used the D series alternator with a different pulley so that everything stayed plug and play.

 

Thank you very much.I appreciate all the replies

 

Wrong! All OBD0 plugs are the same. OBD1 alternator plugs are different. I used my oem harness which was a d series and plugged right into a b16 alternator. Trust me!

 

thats weird then cause my stock Si engine harness plugged right into an obd1 b18b1 alternator..