I am doing a mpfi swap on my 88 civic lx 4 door. I have the intake manifold, throttle body, distributor, and fuel rail along with the resistor box and all wiring, also the ecu. These all came from a 88 crx si. I have everything installed onto the d15b2 and wired to go. The problem I am having is with the vaccum connections. On the 88 si models there are 2 solenoid control valves mounted on the firewall near the map sensor line. On the 89-91 si models there is only 1 solenoid control valve on the firewall. The one that is missing in my 88 lx is the dashpot control solenoid valve which I believe is used to control the fast idle. Also on the 88 si throttle body there is 2 vaccum ports instead of 1 like the 89-91 si models. Can any body help me with this problem?All help and assistance is greatly appreciated.

 

someone has to know what I need to do to get this working right.

 

no one knows anything about this???? I really need to get this car mobile again.

 

hmmm...well that extra plug thats hanging and not plugged into anything you can just leave it there cuz it doesn't throw any codes. as for the two vacuum lines, the red braided hose that comes from the charcoal canister goes to one of them and the other one comes from the manifold itself.

have you tried starting it yet?

 

hey i had the same question...

so you have 1 missing solenoid and an extra vacume nipple? i dont think you need the solenoid cuz most of the pics ive seen on here dont have the extra one, i dont

just plug up the extra one

 

Just satarted the car up and it is idling fine.I plugged the extra vac nipple on the dashpot diaphram. It didn't engage the cold fast idle though. Could my eacv be stuck?


[Modified by CrowerRex, 12:40 PM 2/12/2003]