i think it is... at least when i did a google search for p75-a51, the results kept sayin 94-95 integra... full serial is 37820-p75-a51-831-100764. i was told the motor came out of a 98 gsr, but im not sure if this ecu is obd1 or 2. Thanks in advance!

 

According to the ECU numbers the P75 A03 A04 & A54's came in the 96-00 Integra and the P75 A01 A02 & A51's came in the 92-95's. with the exception of the A51's that went from 92-97.

Honda switched to OBD2 after 95 so if it is a square ECU 96-97 P75 A51 it is OBD2. The A51's were not used in the 98 A/T Integra.


Modified by GhostAccord at 10:27 AM 2/28/2008

 

so how do i know if its a obd2 or 1? arent the plugs diff? i looked at a couple of obd1 ecus, and the plugs look just like mine..

 

there should be a year stamped in blue ink near the s/s sticker.

 

i got a better look at the ecu today.. no date code whatsoever....

 

Out of the 7 ECU's I have on hand only 3 of them have a Month/Day/Year stamp on the outside.

That looks like an OBD1 ECU to me.

Look at the end where the harness connects. If it has 3 connector ports it is OBD1 if it has 4 (1 has no pins) it is OBD2

 

hum?ive had quite a few ecu with atleast the year it was made stamped in blue.can u get a pic of the inside of the ecu for us?that is obd1 doesnt really matter what it came from u can chip it and make it run like any computer u want.as long as it obd1 your good to go.

 

here's what the inside looks like.


only 3 plugs

 

im pretty sure is odb1 ls automatic ecu cuase mine is p75-a01

 

automatic?... am i gonna have to change it to run 5spd? how could you tell that just by looking at the inside?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kirbyman &raquo;</TD></TR><TR><TD CLASS="quote">automatic?... am i gonna have to change it to run 5spd? how could you tell that just by looking at the inside?</TD></TR></TABLE>


u dont have to convert it once u throw a 5 speed bin in there ull be fine.

 

what do you mean by 5 speed bin? and thank you for the help you've posted so far


Modified by kirbyman at 11:38 PM 3/3/2008