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Schredder
Join Date: Dec 2008
Location: Huntington Beach
Posts: 2
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Lumpy idal 3.2
I have a 89 3.2 Carrera that has a rough idal at 800rpm. It sings like a Porsche should at 2000rpm. Any ideas ? A dirty throttle body ? It has 62k and I did all the required maintnence at 60k about a year ago.
One more......... When it is cold it feels like it is pulsing, like it needs fuel. I put in a new fuel filter but under load I still feel the pulse. 
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12-02-2008, 11:39 PM
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?
Join Date: Apr 2002
Posts: 30,662
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Welcome aboard Rick...nice car
 ! Use the search feature above, to search the 911 forum only with "hunting idle", "idle control valve" (ICV), etc. and you'll find lots of threads and tips in the archives. You'll want to check your ICV, possible vacuum leaks, etc. to track it down. BTDT, and my idle is perfect now...good luck!
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12-03-2008, 03:19 AM
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THE IRONMAN
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+ 1 on the ICV....remove-clean-re-install....if the problem still there, buy a can of ether and spray it gently over the vaccum lines...any leak will cause a surge in RPM....Ho...very nice 911....and welcome aboard.
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1984 911 CARRERA RUBY RED TARGA SW CHIPPED-BURSCH CATBYPASS MONTY FREE FLOW EXHAUST <IN GAS WE TRUST> |
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12-03-2008, 04:10 AM
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I'm with Bill
Join Date: Jun 2005
Location: Scottsville Va
Posts: 24,186
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Welcome aboard. The above suggestions are a very good place to start.
I just gotta jump in here and go wow. 1 Name: Rick 2 car: same color 3 Wheels: same. too weird  Welcome to the forum.
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Electrical problems on a pick-up will do that to a guy- 1990C4S |
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12-03-2008, 04:39 AM
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Registered
Join Date: Jul 2007
Location: Halifax, Canada
Posts: 1,216
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When was the last tune up? Plugs, cap, rotor, valves, possibly ignition wires...etc. These may explain a rough idle, not a hunting one.
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12-03-2008, 05:31 AM
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Schredder
Join Date: Dec 2008
Location: Huntington Beach
Posts: 2
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Thanks for the fast reply. I think i will look around for the ICV and clean it out.
I did the plugs , cap & rotor, wires ( the wires were breaking off stuck to the plugs ) last year. |
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12-03-2008, 06:39 AM
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Registered
Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
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I left my Oil cap off once and the idle seems rough for some reasion.
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12-03-2008, 08:18 AM
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Porsche 914
Porsche 911 Carrera
THE ROADSTER
