Surging Idle - Need some help
CL Community Team
Joined: Apr 2004
Posts: 17,318
Likes: 202
From: Miami, Florida
Actually, if the PCV system is working properly, the crankcase vapors are sucked into the intake manifold well downstream of the IACV and the throttle body. One way to tell if your PCV system is plugged is to look for oil deposits in the intake bellows where the breather hose connects from the front valve cover to the intake bellows. It should be clean in there. If you see oil deposits, that means the vapors are backing up and being injected there instead of getting sucked into the intake manifold like they're supposed to. This is a sure sign your PCV valve or hose is plugged.
Thread Starter
Driver School Candidate
Joined: Jul 2012
Posts: 13
Likes: 0
From: Jamaica
An update, albeit not a positive one.
So, after researching and troubleshooting I found that when I removed the connector on the rear OCV the idle smoothed out and stayed at 1000 rpm in all conditions I drove it in. There was no noticeable loss of power.
I changed the OCV today and .... same problem. Surging every 5 secs.
Any thoughts? Cam gear maybe?
So, after researching and troubleshooting I found that when I removed the connector on the rear OCV the idle smoothed out and stayed at 1000 rpm in all conditions I drove it in. There was no noticeable loss of power.
I changed the OCV today and .... same problem. Surging every 5 secs.
Any thoughts? Cam gear maybe?
Last edited by LexDread; Jul 2, 2013 at 03:16 PM. Reason: Added some info.
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