i just swapped in a zc engine into my crx 6 days ago anyhow the problem is that when ever the car is on ilde it revs up and down by itself. it also effects my driving only at low rpms. it makes the car jerk forward and backwards when i drive from 1500 rpm to 3000 rpm. but when i go past 3000 rpm the car accelarates good. please help!!!

 

Check your coolant! Air bubbles in the coolant cause it to idle funny-up and down. Just bleed your coolant and it should be fine. i had the same problem after my swap.

 

make sure the vacuum line is on the FPR.

 

mine did the same thing......just adjust your idle......and check your vacuum lines, i gaurantee it has nothing to do with your coolant!

 

can anybody show me the proper diagram for vacuum hoses for my crx dx with a zc egine installed??? please help