I bought a p2p off of a guy on cl the other day, and i have no clue if its an a/t ecu or m/t ecu. I have looked up and it said if its A01 its m/t and if its A51 its a/t. but the one i got says 37820-p2p-A31. Anyone know if its a m/t or a/t?

 

5 speed according to this thread https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/how-can-you-tell-if-ecu-automatic-standard-i-have-p30-1082468/

 

sweet thanks, now i just need to know if its obd2a or obd2b....

 

Should be a date stamp in black next to the label, if you cant read it, post a pic of the ecu. My OBD2B ecu is the square and almost the same size as the JDM square ecu case, while OBD2A ecu's are rectangle like OBD1 usdm ECU's.

 

 

Do you have a pic of the whole ecu case? Like a pic from the top?

Is the case square or rectangle?

 

nope, thats the only one i have, thats a pic the guy im buyin it from sent me

 

So you dont have the ecu yet? When you get it, if the case is square it's obd2B. If it's rectangle it's obd2a. At least mine were like that anyways. Don't know if theres any other way to tell. Typing that P/N into google, it comes up as 99-00 Civic EX D16Y8 5spd, but that is from google, so should be taken at face value.

 

nope, ill be getting it around wed. but thanks for the help!