when i bought my ej1, i never found out if it still had a p28 ecu, im assuming it does since i dont get any CEL and has a d16z6.

but ever since i bought my car, these 2 plugs have been hanging out, unplugged.




there is a 2 pin and 3 pin plug,

the 2 pin has a blue connecter with brown and black wires (i use this to check my CEL

the 3 pin has a blue connector also with light blue, white/red or orange, and black/red wires

should these be plugged in somewhere? i havent pulled my carpet to see if they should be

 

no they should not be plugged into anything, they are service connectors, the 2 wire one is the one you jump to check for a CEL.

 

i used the 2 pin once to check CELs but i found it wierd that in the CEL thread...

it says EGs should have grey plugs and EKs have blue, like mine, i got a '94 EJ1,

is there a possibility i dont have a p28? (i dont feel or hear vtec either, but then again its an sohc)

 

that's not completely weird, my 92 EG8 had gray plugs, and my 95 EJ1 had blue, as well as my 00 EJ6 hatch.

what does the tag on your ECU say?


here is a quick pic i pulled off google to help you out a bit while you identify your ECU, the top line reads 37820-P28-XXX...that is how you can tell it's a P28 ecu.