Can anyone confirm this?

I have a P75 ECU and I'm trying to determine if it's OBDI or OBDII.

It has a total of 3 plug ports.

 

OBD2 ECU's have four plug sockets but only use 3 of them at one time... 96-98 OBD2a uses the first 2 and the farthest right one (A,B,D) 99+ OBD2b uses (A,B,C). All you have to do to know if the ECU is OBD1 or OBD2 is look at the pins in the female sockets on the ECU. If they are stacked 3 high then you have an OBD2 ECU if they only have two stacks then it's non OBD or OBD1. Hope this helps

 

man thanks a TONNNNN

this is exactly what I was looking for!!!!

Thanks SO much

 

OBDIIa (96-98 civic, 96-99 integra) uses plugs A, C, D

OBDIIb (99-00 civic, 00-01 integra) uses plugs A, B, C

 

Unless the ecu is a automatic tranny ecu, then they use all four plugs.

 

Correct. But who drives an auto?

 

i got a question what ecu has 4 plug

 

i have a ek civic b20 motor but auto and i need an ecu with 4 plugs car will not shift when driving