Would it be better to run a P2T (99-00 Si) ECU, or would a P73 from a 96-99 ITR work better?

This would only be for emissions purposes and would be used for short periods at at a time.

Is any one ECU better depending on the compression reached?

 

I would say type r, because it is a 1.8, and so is your lsv

 

Do you know if the USDM and the JDM ITR ECUs are the same as far as emissions output?

 

i would say a gsr because the lesser compression, i guess it all depends on the cams and compression your running....

9.1:1-10.5:1 go with gsr, anything higher go with type r

 

I'm not sure, but I believe the JDM ecus do not look for the same sensors as USDM ecus, and may not be compatible with emissions testing. If you have to do a sniffer test you could probaly pass, but if they plug into your ecu I think you are toast

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsleepercivic &raquo;</TD></TR><TR><TD CLASS="quote">I'm not sure, but I believe the JDM ecus do not look for the same sensors as USDM ecus, and may not be compatible with emissions testing. If you have to do a sniffer test you could probaly pass, but if they plug into your ecu I think you are toast</TD></TR></TABLE>


thats true!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coptzer &raquo;</TD></TR><TR><TD CLASS="quote">i would say a gsr because the lesser compression, i guess it all depends on the cams and compression your running....

9.1:1-10.5:1 go with gsr, anything higher go with type r</TD></TR></TABLE>

I am using a b16 head, wont a GSR ECU check for IACV/butterflies?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egsleepercivic &raquo;</TD></TR><TR><TD CLASS="quote">I'm not sure, but I believe the JDM ecus do not look for the same sensors as USDM ecus, and may not be compatible with emissions testing. If you have to do a sniffer test you could probaly pass, but if they plug into your ecu I think you are toast</TD></TR></TABLE>

I spoke with Katman, he confirmed this to be true. My state uses a scan tool to check on OBD2 vehicles.

 

anyone know if the GSR ECU will work on a b16/b18b LS/VTEC?

 

yeah it will work, won't get a code for not having the IAB hooked up