tryin to figure out what i need to do to get my car back into shape. looking to purchase a swap which i think is jdm. i plan to take my current obd1 turbo setup out and put in a stock motor, ecu, stock everything. the car NEEDS to be able to pass emissions, it needs to be obd2. can i run a usdm ecu and harness on a jdm motor? are jdm ecu's obd2?

im doing this for two reasons. NY now requires you to have a valid inspection within the past 12 months in order to renew your registration. my car hasnt been legally inspected in like 4 yrs and would never pass. plus i want to the car to be more reliable for expo.

 

what exactly about your car makes it illegal besides maybe not running a catalytic converter? It is just a visual inspection?

As for the harness, I would assume you can because how many people have come in here with their 'JDM swaps' asking for advice. I think it woulda come up by now if you couldn't.....just my .02

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">

im doing this for two reasons. NY now requires you to have a valid inspection within the past 12 months in order to renew your registration. my car hasnt been legally inspected in like 4 yrs and would never pass. plus i want to the car to be more reliable for expo. </TD></TR></TABLE> can NY proove its not valid ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">my car hasnt been legally inspected in like 4 yrs and would never pass. </TD></TR></TABLE>

scofflaw

 

from what i understand inspections are now stored on file with dmv. if dmv doesnt have a valid inspection on file you cant renew your registration. i just tested it online with my beater. it checks to see if you have an inspection before allowing you to register. i think what happens now is when you get inspected, the inspection number/date is reported to dmv to put on file with your registration.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by totsie7944 &raquo;</TD></TR><TR><TD CLASS="quote">what exactly about your car makes it illegal besides maybe not running a catalytic converter? It is just a visual inspection?

As for the harness, I would assume you can because how many people have come in here with their 'JDM swaps' asking for advice. I think it woulda come up by now if you couldn't.....just my .02</TD></TR></TABLE>

NY emissions testing. car needs to be obd2 and communicate with DMV/code readers

and from what i have heard so far i can use my usdm ecu and harness with no problems.

 

Ryan it's definitely feasible, we made my stock Si harness work with my jdm ecu and motor years ago. I know there was some rewiring involved, but couldn't tell you the specifics. It has been over 5 years since the swap was done.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">from what i understand inspections are now stored on file with dmv. if dmv doesnt have a valid inspection on file you cant renew your registration. i just tested it online with my beater. it checks to see if you have an inspection before allowing you to register. i think what happens now is when you get inspected, the inspection number/date is reported to dmv to put on file with your registration.</TD></TR></TABLE>

yeah ryan , i was in florida with ny tags for 2 yars , my last inspection legit or not was in 05

im still legally registered

i dunno tho , my dad did it for me online i kno

 

You can def run a usdm harness with a jdm motor. Check your emission standards in NY, ours recently changed to obd2 cars only get plugged in to check for any recent codes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">

NY emissions testing. car needs to be obd2 and communicate with DMV/code readers

and from what i have heard so far i can use my usdm ecu and harness with no problems. </TD></TR></TABLE>


hmm well is there some sort of fine print where if you spend a certain amount of money and it still will not communicate that they will just write you a waiver? Just a thought because I just kinda went through this and I just showed them my receipt for my RC 1000cc injectors and called it a day lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by totsie7944 &raquo;</TD></TR><TR><TD CLASS="quote">


hmm well is there some sort of fine print where if you spend a certain amount of money and it still will not communicate that they will just write you a waiver? Just a thought because I just kinda went through this and I just showed them my receipt for my RC 1000cc injectors and called it a day lol</TD></TR></TABLE>

If Ryan converts his car back to stock, he wont have a problem passing emissions, whether it be the sniff test or just the computer hook-up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by totsie7944 &raquo;</TD></TR><TR><TD CLASS="quote">


hmm well is there some sort of fine print where if you spend a certain amount of money and it still will not communicate that they will just write you a waiver? Just a thought because I just kinda went through this and I just showed them my receipt for my RC 1000cc injectors and called it a day lol</TD></TR></TABLE>

yeah this is an option, but ive had enough with the headaches. ive got a hatch ready to get the turbo setup and just want the R back to as close to normal as possible.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">

yeah this is an option, but ive had enough with the headaches. ive got a hatch ready to get the turbo setup and just want the R back to as close to normal as possible.</TD></TR></TABLE>

Yea that's probably smart then. Good luck with the project.

 

From what I have been told is USDM ecu with USDM motor and JDM with JDM. Sucks that you will be slower at Expo this year... but maybe you won't over heat.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Comp97GSR &raquo;</TD></TR><TR><TD CLASS="quote">From what I have been told is USDM ecu with USDM motor and JDM with JDM. Sucks that you will be slower at Expo this year... but maybe you won't over heat. </TD></TR></TABLE>

why were you told that? ie, what was the reasoning.. as long as you run the USDM vtec solenoid, distributer, oil pump housing and CKF sensor, it should run fine.. the half point compression bump shouldn't change THAT much.. the oem ecu runs pretty rich as it is..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mstewar &raquo;</TD></TR><TR><TD CLASS="quote">

why were you told that? ie, what was the reasoning.. as long as you run the USDM vtec solenoid, distributer, oil pump housing and CKF sensor, it should run fine.. the half point compression bump shouldn't change THAT much.. the oem ecu runs pretty rich as it is.. </TD></TR></TABLE>
Right! I was able to pass CA emissions with a JDM 99 motor and stock USDM 98 ECU. I ran the USDM exhaust manifold and cat with 2nd O2. I was able to bypass everything else. The vtec pressure switch I jumped with the vtec solenoid pin. The CKF sensor has to be jumped to the CKP sensor. There is an excellent how-to here:

http://technet.ff-squad.com/ckftrick.htm

Other than that, just make sure you hook the EVAP Purge Solenoid correctly and run the Charcoal Canister. I went as far as buying a USDM ITR intake manifold because they're slightly different for the EVAP nipple.

 

That is true, many people do not swap all that out and wonder why their vtak doesn't pop. With this particular stunna, I am sure he could swing swapping out the vtak solenoid with his ported version.

What about the differences in calibration for higher octane in Japan... or is that a myth? In a street car I would not be concerned but something seeing track duty it may... OR may not be and issue.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Comp97GSR &raquo;</TD></TR><TR><TD CLASS="quote">That is true, many people do not swap all that out and wonder why their vtak doesn't pop. With this particular stunna, I am sure he could swing swapping out the vtak solenoid with his ported version.

What about the differences in calibration for higher octane in Japan... or is that a myth? In a street car I would not be concerned but something seeing track duty it may... OR may not be and issue. </TD></TR></TABLE>
I've been using the JDM ITR ecu for years with 91 octane and have no problems. I think it would be the perfect ecu if not for their speed limiter. However, I have never hit the limiter, even on big tracks like Willow Springs.

 

yeah.. when I first fired up the old ITR racecar, I borrowed a JDM ECU from Smitdog for awhile until I got an ECU of my own.. ran fine for a couple months and a couple thousand miles! I really don't think there's much of an issue intermingling the ecu's and engines as long as you either bypass or swap out the few differing parts to use the USDM ecu..

 

Ryan Im not sure how it goes in NY, but in MA(ive got my insection licence)if the sticker machine doesnt communicate with the car it automaticaly fails. also i think you should be fine running the JDM motor on the stock harness, all the sensors should be the same. and if it needs to communicate with the ecu then you need a usdm ecu.


if you need any help lemme know, i dont think your too far from me

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jackson &raquo;</TD></TR><TR><TD CLASS="quote">
I've been using the JDM ITR ecu for years with 91 octane and have no problems. I think it would be the perfect ecu if not for their speed limiter. However, I have never hit the limiter, even on big tracks like Willow Springs. </TD></TR></TABLE>

If you come to VIR, you will hit it.

 

thanks for all joor help i guess i gotta do a bit more research to see what needs to be rewired.

why cant you use the jdm vtack solenoid and distributor? different connectors or something?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jackson &raquo;</TD></TR><TR><TD CLASS="quote">
Right! I was able to pass CA emissions with a JDM 99 motor and stock USDM 98 ECU. I ran the USDM exhaust manifold and cat with 2nd O2. I was able to bypass everything else. The vtec pressure switch I jumped with the vtec solenoid pin. The CKF sensor has to be jumped to the CKP sensor. There is an excellent how-to here:

http://technet.ff-squad.com/ckftrick.htm

Other than that, just make sure you hook the EVAP Purge Solenoid correctly and run the Charcoal Canister. I went as far as buying a USDM ITR intake manifold because they're slightly different for the EVAP nipple.</TD></TR></TABLE>

thanks man. i assume 00 usdm itr ecu is obd2b right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">thanks for all joor help i guess i gotta do a bit more research to see what needs to be rewired.

why cant you use the jdm vtack solenoid and distributor? different connectors or something?</TD></TR></TABLE>

the distributor is fine, the jdm vtec selenoid is missing the oil pressure switch.

 

I just took my spool valve apart and drilled and taped were the oil pressure sensor goes, works ****.