obd 2 b18b converting to obd1
- Thread starter 97RedTeg
- Start date
DaddyBuiltRacing
Resident Asshole
No he doesn't need a jumper or conversion harness. You need t put your obd1 distriutor, injectors, wiring harness and alternator all put on your new motor. Its as simple as that.
So basically, pull old blown up motor, take alternator, distributor and injectors off of it. Put those items onto your new engine. Put new engine in car, hook everything up and drive it
So basically, pull old blown up motor, take alternator, distributor and injectors off of it. Put those items onto your new engine. Put new engine in car, hook everything up and drive it
Last edited:
DaddyBuiltRacing
Resident Asshole
Yes its as simple as that, why are you wondering about the distributor fitment, they are the same exact heads. Your obd1 motor was either stamped pr4 or p75, which is the same as the obd2 motors. Your distributor will bolt right up with no issues
hidenplanvew
New Member
Its the same motor basicly... You can put anything from your old motor to your new one... to simple
BrokenTalon27
W.F.O
No, you don't need it.what about wiring harness do i use same one or the obd 2 harness...so i dont need the jumper harness at all neither
Do just like Nerk said. He explained all you need to do above.
No Rice Riley
New Member
Yea i kinda have the same question but im putting a 98 gsr into my 93 which is obd1. my friend told me to buy a p28 ecu and wire the harness to the ecu myself. is it as easy as that? i hate wiringNo he doesn't need a jumper or conversion harness. You need t put your obd1 distriutor, injectors, wiring harness and alternator all put on your new motor. Its as simple as that.
So basically, pull old blown up motor, take alternator, distributor and injectors off of it. Put those items onto your new engine. Put new engine in car, hook everything up and drive it
DaddyBuiltRacing
Resident Asshole
Do you have a 93 LS or GSR? If its an LS the only wiring youll need to do is add vtec in. I wouldn't run a p28, they don't look for a knock sensor and they don't look for the secondary butterflies. Run an obd1 P72 (GSR ecu) or if you must run a p28 have it chipped to run like a stock GSR, xenocron and phearable.net both offer chipping services.
Samurai_Blue
Yolo Whippin'
ThisNo he doesn't need a jumper or conversion harness. You need t put your obd1 distriutor, injectors, wiring harness and alternator all put on your new motor. Its as simple as that.
So basically, pull old blown up motor, take alternator, distributor and injectors off of it. Put those items onto your new engine. Put new engine in car, hook everything up and drive it
BrokenTalon27
W.F.O
Even if he has the p28 chipped it wont operate the secondary butterflies. p72 is the only one that has the hardware to do it.Do you have a 93 LS or GSR? If its an LS the only wiring youll need to do is add vtec in. I wouldn't run a p28, they don't look for a knock sensor and they don't look for the secondary butterflies. Run an obd1 P72 (GSR ecu) or if you must run a p28 have it chipped to run like a stock GSR, xenocron and phearable.net both offer chipping services.
DaddyBuiltRacing
Resident Asshole
You mean Map sensor? You can use either one and just leave the other unplugged. I would use the one on the firewall. There is a company called KMS that sells MAP sensor block off plates to go on the throttle body. You take you the Map sensor off, bolt the block off plate on and it looks alot cleaner.
And yeah you are right about the p28 not having the secondaries either.
And yeah you are right about the p28 not having the secondaries either.