My 97 crv's tranny is starting to go so i searched and found that i can get a jdm b20b complete swap with awd auto tranny for the same price as the junkyard wants for the tranny alone. Before i buy the jdm swap i want to make sure the tranny will work. Does anyone know? YES i did search first but didn't find anything conclusive.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DelsoldS &raquo;</TD></TR><TR><TD CLASS="quote">My 97 crv's tranny is starting to go so i searched and found that i can get a jdm b20b complete swap with awd auto tranny for the same price as the junkyard wants for the tranny alone. Before i buy the jdm swap i want to make sure the tranny will work. Does anyone know? YES i did search first but didn't find anything conclusive.</TD></TR></TABLE>

I dont think so.. jdm and usdm motor look like same but jdm and usdm is little different....

 

I'm almost positive they are the same. I don't know if any differences, but I could be wrong. But reguardless, ANY B series tranny will bolt up to ANY B series block as far as I understand. I don't know how you could get a whole B20 swap with tranny for less than a trans at the junk yard. It sounds like your junk yard is ripping you off.

 

the junk yard wants 1200 for the trans with 90k miles and every jdm importer wants 1400 or less for the complete swap shipped. i know the trans will bolt up but im more worried about the electronics and **** with the transmission being the same.

 

They should be the same fitment and all, should work just fine. Just make sure its the same year as your old one so you dont run into wiring problems.

 

yea thats gonna be your only problem (wiring) make sure there the same year!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DelsoldS &raquo;</TD></TR><TR><TD CLASS="quote">the junk yard wants 1200 for the trans with 90k miles and every jdm importer wants 1400 or less for the complete swap shipped. i know the trans will bolt up but im more worried about the electronics and **** with the transmission being the same.</TD></TR></TABLE>

WOW that sounds like a LOT for a B20 tranny, especially for one with 90k miles!

 

the gear ratios are completely diff. the JDM ones are really geared low. like you can do 60 and in 5th gear and the RPMS will be a lot higher. the USDM is more highway friendly

 

I just called an importer that I deal with all the time to confirm what I thought.

There are two different types of trannies - one with a kick down cable, and one without.

The kick down cable attaches to the throttle body and literally tells the tranny to down shift if you go over a certain throttle position.

Make sure that if you CR-V has it that you get a JDM tranny that also has it, because it comes both ways from Japan.

As far as gearing differences goes I'm not aware of any. My shop has done a few of these over the years and never had any complaints, or any noticable rpm changes in the highway gear, etc.

Also there should not be any wiring issues, unless of course you try and run the JDM ENGINE too since it will lack a CKF sensor. You either swap oil pumps and add a USDM oil pump with CKF sensor to the JDM engine, or you perform a wiring trick at the ECU to loop the CYP sensor signal into the CKF input also to trick your USDM ECU that the JDM engine also has the CKF sensor when it in fact, doesn't.

Am I thoroughly confusing anyone here?

 

Do i get a cookie for not getting lost?

 

could i just use the jdm ecu instead of changing the wiring?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DelsoldS &raquo;</TD></TR><TR><TD CLASS="quote">could i just use the jdm ecu instead of changing the wiring?</TD></TR></TABLE>

Not if you have any emissions requirements, and not if you ever want to be able to have a shop scan for OBD2 check engine codes.

The JDM ECU will have the "OBD2" plugs, but they are basically an OBD1 program that doesn't look for the CKF sensor, EVAP system, secondary o2 sensor, or catayst efficiency - they also will not communicate with OBD2 scan tools to aid in diagnostics or allow the car to pass state emission test requiring the use of an OBD2 scan tool.