I recently did some head work on my car and tryied to put a dx ecu on it (it is a cx by the way) but anyway when i put the ecu on it would run great until i drove it and then it runs like i have a vacum leak or something but put originaly ecu back on and it ran perfect wtf is up with it
Thanks
Civmochris

 

DX ecu uses a 4 wire 02 sensor while a CX uses a 1 wire 02 sensor

 

weird stuff. i guess my CX is the exception. I have a four wire o2 in it. Made in Canada, 1994 and white if it matters.

 

my CX has a DX motor, its OEM trim, thats because Canadian made Civics only came with 92, 102 and 125hp versions

 

well my car is a 'California car'. Weird stuff. but I do admit, it sure made it easier when I swapped my gs-r motor in.

 

that is not entirely accurate mine was a 93 hatch CX with 70 HP factory!

 

You dont live in Canada