I have been searching threads and Google for a few days now but can't answer this question.

I have a 97 civic not sure what trim model. Has the 5spd d16y7 motor.

I just got a y8 head, intake and everything. But when I got the set up it came with a p2p-a31 ecu. Which I believe is obd2a, my current ecu is a p28 and the plugs appear to be obd2b because it doesn't use the far right plug.

I thought 97 was obd2a? Does this mean I need to get a p2p obd2b ecu? Hoping to do the swap in a few weeks and want to make sure everything is correct.

 

sparky, you've got obd2a. the ecu is correct as long as its obd2a.

 

I was wrong, my current ecu uses all four plugs.

 

Are you really trying to modify an autotragic? Stop that. It doesn't work that way. Then go read the rules sticky.

 

4 plugs= automatic

 

Car was converted over to a manual but apparently still has the old ecu on it. I bought it that way.

That's what I couldn't figure out because all of the pictures of ecus only used three plugs. I'm learning alright, just be happy I'm getting rid of my eclipse and got a civic haha.

 

get rid of the a/t ecu. youll need a manual ecu and to do a 3 to 2 wire iacv conversion.

 

You might be able to remove resistors disabling the A/T for the ecu. I know the OBD1's are like that.

 

I'm getting ready to make her right
Just trying to make sure I have everything correct before I rip into it. I should, it's the 4 plugs on the ecu is what messed me up.