phoxking

quick question just to get some reassurance,

does the JDM P72 GSR ecu work pretty much the same for a usdm gsr?
-planning to run obd2a chassis obd2a 98b18c1 with jumper harness obd2a-obd1. I just need the ecu left!
-just got a comeup on a really good deal for this ecu like dirt cheap..

Anyone HT!?

Deetz

I can tell you the tune will be slightly different but should work. The engine in Japan has higher compression (10.6:1 if i remember right), just like the usdm type R

phoxking

besides though dumb question..but it should well here's the situation my obd2a gsr right now is giving me a code for charcoal canister sensor and rear o2 sensor..but if i go obd1 those problems don't exist for the obd1 gsr right? since obd1 doesn't use rear o2 and for sure i checked doesn't have a charcoal canister top sensor that goes to the ecu.. and i'm already planning to tune my car in the future so this route is much easier as well.

phoxking

anyone else? i trust you deetz just wanna make sure before i bid on it aha i'm tired of the CEL's due to emission related stuff..

rhymeshark916

Why don't you run a obd2a usdm p72 and ref it? People doing swaps in Cali as there DD and not have it Bar, why waste time and money?

MiNDTRiP03

The JDM P72 also has a speed limiter at like 115-120MPH

If interested, I have a Virgin OBD2A P72 USDM GSR ECU for $100 Shipped.

phoxking

been looking on ht and no one has the top vapor sensor for the obd2a gsr one. so i have to have a shop make it(idk anything about wiring..) and get a rear o2 sensor+catalytic converter all that is for sure over 140$ just to bar the damn thing, idk..yeah i know i wouldn't mind having bar'd so i don't have to worry and it's good for resale, but i rather go obd1 for the option to tune later..and while i'm on obd1 i shouldn't have to deal with any bull emissions cels..but if i do plan to go legit later, i'll just save up the parts i need left to pass ref and put them on the car and take out the obd1 ecu and jumper harness and put back in the obd2 ecu lol

phoxking

yeah i don't plan on hitting 115mph anytime soon aha. i wanna get this car to adams track asap!
thanks, but i'm already running a p72 obd2 ecu atm..need p72 obd1 usdm/jdm.

snaponkid123

confusing stuff.. i have questions about what wire need to be run to use obd2a gsr ecu with ex harness and 2000 b18c1

phoxking

i'd say your jacking my OP, but its cool ahahah

first of all..what's the spec of your car?

rhymeshark916

Pay now or more later. Just my .02 cents. Why are you worrying about converting to obd1 when you can run a stock ecu perfectly fine as it is? You're going to definitely have to deal with emissions no matter how you look at it. $250 for illegal smog? or $8.50 to be legit?

rhymeshark916

I actually have a USDM obd2a 96-98 P72. If you want I can ship it to even quicker as we're just a few hours away. And it won't be $100 shipped. That *** is out of his dumb mind. You can source these all day like Pho Noodles!

snaponkid123

my motor is a gsr and the car is a civic cx hatch but im using a different harness out of an 99ex

0HAMOTORSPORTS

The JDM OBD1 P72 will run nearly the same as the USDM P72. It has slightly different fuel/ignition/idle maps, but will run without troubles. Just remember, since you plan on tuning it you will need to have it socketed by someone who does the JDM ECU's (they use different components to socket than USDM ECU's).

phoxking

specs as in what's the year of the chassis, motor, and harness your using. hard to help we don't know all of the models of what your using.

snaponkid123

sorry if im jacking your thread but hard to find somone with same problems haha its a 2000 b18c1 gsr.. 2000 civic cx.. 99 ex harness.. im looking at a obd2a p72-a02 you know of wires i have to run? im in the middle of converting my harness to the gsr but have a few extra plugs on the motor and harness that are worrying me it just dosnt look good lol sorry for jacking but its starting to frustrate me lol