One is a 37820-PR4-L10.
the other is a 37820-P2N-L31.
I need to no what motors theses go too. I no one is for an ls Integra but i need to no what year and what OBD it is. THanks a lot guys.
chris

 

pr4 is manual pre-obd (obd-0) ls integra
p2n is 96+ obd2 civic hx

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sanimalp &raquo;</TD></TR><TR><TD CLASS="quote">pr4 is manual pre-obd (obd-0) ls integra
p2n is 96+ obd2 civic hx</TD></TR></TABLE>

Depends on the date of manufacture on the ecu as there were two pr4's , 90-91 pr4 is obd-0...92-93 pr4 is obd-1.

 

How can i find out if the pr4 is obd 0 or 1

 

If it has grey ECU plugs, OBD-I. If they are white and milky, OBD-O. It should also have a date on the case.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. S &raquo;</TD></TR><TR><TD CLASS="quote">If it has grey ECU plugs, OBD-I. If they are white and milky, OBD-O. It should also have a date on the case.</TD></TR></TABLE>

thats for the harness side, he only has the ECU's, I say just examine the Dates stamped on them in ink.

90-91 PR4 is pre-OBD and 92-93 is OBD-1
BUT if it has a stamp like nov-Dec from 91 its more than likely a OBD-1 model made for the 92 in late 91.

 

if the pr4 has a black plug and a green plug OBD0. if one plug of gray then obd1

 

oh yeah.. forgot that minor obd0/1 detail

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kryogen &raquo;</TD></TR><TR><TD CLASS="quote">
thats for the harness side, he only has the ECU's, I say just examine the Dates stamped on them in ink.
</TD></TR></TABLE>


Wrong. The colour differences apply on the ECU's themselves too.