alright guys... well My freind just bought the same car that I have. Its a grey 1990 civic ex.... he is also gonna be doing a sohc zc swap like me...(mine will be done in a week) anyways... the thing is he is suppose to have a d16a6... but he has a D15B6 in it... which I believe is the hf motor.. 8 valves. 1.5... Its mpfi so he wotn need to change that... what ecu is he running though.. did sedans come factory with a D15B6 option... what ecu do they have... thanks guys..

 

stock ecu is PM6

 

No that motor was swapped into it. ex's and si's all came with a d16a6.

The stock ecu is the pm6, more than likely the car is running the hf ecu.

 

Okay I thought someone swapped that motor in.. kinda sucks that they did.... anyways the d15b6 would or should I say could run off the pm6 right.. becuz it runs shitty it runs rich... idles a bit higher... or how would the d15 run on the pm6

 

The d15 would run rich with the pm6.

Swap it out with a pm8.

 

yea I know it would run rich but Im saying... hes doing a sohc zc swap hes getting rid of the d15b6! I was just wondering nvm I get it. thanx

 

Alright.