Civic-EG.com Forum 3.3.1

- Tue Jun 08, 2010 3:54 am #199116 My sohc zc is acting up. In the morning when I start her up she idles at 2500-3000 then drops to 900-1100 and bounces. I had kinda the same problem when I first bought it. I took it to the honda dealer and they found the gasket between the throttle body and IM was almost gone. It cost me $100 for a $6 gasket. Anyway, shes at it again. I adjusted the little plastic screw inside the IVAC or whatever its called. Not sure if I did it right though. Anybody have any ideas on what it could be. Also when I turn on the a/c it drops to 600 rpms and bounces and shutters and has turned off twice.

HELP!!!

- Tue Jun 08, 2010 7:43 pm #199272 Anyone have any ideas on what might be the problem??

- Wed Jun 09, 2010 3:27 pm #199451 most likley a vaccum leak.

street machines > dyno queens
z6 turbo power FTW tuned on crome

- Wed Jun 09, 2010 8:00 pm #199515 Should I just change out all the vacuum lines? And which ones are they?

- Thu Jun 10, 2010 2:50 pm #199689 Im going to adjust the FIV and go from there. Anyone know where to get a full gasket kit to overhaul my sohc??

- Wed Jun 30, 2010 9:41 pm #202688 i had the same problem with my b7 and when i had the rear wheel hubs replaced i had them take a look at it and there was a pinhole leak coming from the back of the head to the bottom side of the IACV as soon as i replaced that hose ($5 bucks for the hose from just about any auto parts store) the idle stopped jumping.. have you noticed any loss of antifreeze/coolant? before i changed that hose i kep having to get coolant ever so often and couldnt figure out how( i figured i was burning up coolant) anyway... hope that helps

if it starts in the morning, you can drive it harder

- Fri Jul 02, 2010 2:13 am #202905 Beatdowncivic thanks for the info. I haven't lost any coolant. The idle is fine now after i adjusted the FITV. Now its sputtering when I take off in first gear or if I shift too early. It lags power but if I stay on the gas it goes away. Weird!! I took off my iacv today and cleaned it with carb cleaner. I'll post an update tomorrow and see if that fixed the problem.