Rep Power: 737

recently i swaped the engine in one of my crx's with a zc d16, the cars an si with the 1.6 SOHC, dose the dohc require an ecu swap as well?
Marko

 
Rep Power: 818

nope the ecu your running is what a lot of people run with a dohc zc

 
Rep Power: 737

then what would explain the shakey rpm im geating.. it will bog until it almost shuts off,then back up to about 3000 or so, then repeats.
thanks for any help!
Marko

 
Rep Power: 802

the ecus used for dohc zc engine swaps are the civic si ecu, the 2nd gen integra ecus and obviously the original zc ecu.
does that situation only happen at idle or is it happening when driving it bogs out?

 
Rep Power: 737

just at idle.
Marko

 
Rep Power: 0

this may sound too simple but check your coolant... its probably really low.

 
Rep Power: 786

if it has the DOHC ZC then you can get an ECU from a 1st gen integra if it's the SOHC ZC then i dunno what you can use. a civic guy should be able to help you with that.

like forcefedsi said check the coolant make sure it's topped up.

 
Rep Power: 0

yes the best ecu would be pm7 dohc zc the rest are worthless also look into your iacv

 
Rep Power: 802

alright this has nothing to do with your ecu as this is a common problem on hondas. Undo your raditor cap and run your engine while topping up your coolant. If problem persists i would then check your iavc (idle air control valve). I would remove it and clean it out and check to see how dirty it really is. This is a start to your problem. If problem continues post back here and we can help you further.

 
Rep Power: 737

I think your right on the ball buddy!
i did any engine swap, started the engine for a few seconds with no coolent in it. so most likely this is the issue. i will also clean out the IVAC . car is in the body shop now geating painted and all, so i'll deal with it when it gets here!
thanks for support guys!
Marko