I have a motor (b18b) and dont know what year it is.

 

Your motor debuted in 1994 and was used through 2001. If it was either 1994 or 1995, it would be an OBD1, anything after 1995 is OBD2. As far as the ECU is concerned, there were two varients OBD2A & OBD2B which indicates whether or not your ECU was equipped with an immobilizer.

I think:
1996 - 1999 (OBD2A) = no immobilizer
2000 - 2001 (OBD2B) = immobilizer present

I drive a 1999 GSR and I don't have that green light on the cluster that shows my car is equipped with an immobilizer.

 

The quick way to tell by looking at the actual motor is check at the crank pulley to see if there is a harness/plug coming out from under the timing cover...if so then it is OBD2, if not it's OBD1. That is the crank fluctuation sensor found on all OBD2 Hondas.

 

the year is also in your VIN

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xteg95 &raquo;</TD></TR><TR><TD CLASS="quote">the year is also in your VIN </TD></TR></TABLE>

He has the motor only rocket scientist.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by klungemonger &raquo;</TD></TR><TR><TD CLASS="quote">The quick way to tell by looking at the actual motor is check at the crank pulley to see if there is a harness/plug coming out from under the timing cover...if so then it is OBD2, if not it's OBD1. That is the crank fluctuation sensor found on all OBD2 Hondas.</TD></TR></TABLE>

X2

 

96-01 obd-2 b18b 94 95 b18b is obd-1

 

cool thanks guys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PLAGUED_DB7 &raquo;</TD></TR><TR><TD CLASS="quote">

He has the motor only rocket scientist.

X2</TD></TR></TABLE>

umm motors (blocks) have the VIN stamped on them fellow genuis.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xteg95 &raquo;</TD></TR><TR><TD CLASS="quote">umm motors (blocks) have the VIN stamped on them fellow genuis.</TD></TR></TABLE>
But if he doesn't know how to interpret the VIN it doesn't help him...seriously, he didn't know the difference between the OBD's...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by klungemonger &raquo;</TD></TR><TR><TD CLASS="quote">
But if he doesn't know how to interpret the VIN it doesn't help him...seriously, he didn't know the difference between the OBD's...</TD></TR></TABLE>

I think looking at a VIN and looking for a series of numbers that end in 94,95,96, ect is easier that figuring out the difference between OBD's to some