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Registered User
Join Date: Jan 2013
Posts: 4
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86 Carrera rough idle
Hi, I have a great "barn find" 86 cab but it has a rough idol. It starts up and fluctuates or just dies out. Any ideas would help ,thanks.
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08-17-2013, 03:31 AM
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Banned
Join Date: Aug 2011
Location: The Wet Side
Posts: 5,675
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All kinds of stuff could be wrong. From simple to catastrophic.
I'll start. No compression in one or more cylinders. |
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08-17-2013, 06:56 AM
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Registered
Join Date: Aug 2008
Location: sectors R&N, SE Pa
Posts: 3,117
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Any ideas as to how long since it has been since it was last run/started?
There is so much you may need to, but it isn't a really long list. Maybe clean/replace the plugs. Drain tank / flush the fuel. Replace fuel & Air filters. Replace vacuum lines to throttle body (TB) and check the others (to brake booster, charcoal canister, oil tank). Maybe clean the injectors & TB. more ideas will come or do a little search here. Post a pic too, and good luck.
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Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
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08-17-2013, 06:57 AM
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?
Join Date: Apr 2002
Posts: 30,533
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I'd start with the most probable first (and if the car hasn't been given a good 'ol Italian tuneup...do that FIRST)
 . Then...start by making sure your ICV (idle control valve) is functioning properly (search the archives...lots of info) and that you have no vacuum leaks. Both are common issues... ps: Use search topics like "ICV" and "hunting idle"....lots of us have BTDT. Good luck! |
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08-17-2013, 07:10 AM
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Member 911 Anonymous
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+1, everything these fine gentlemen stated.
General Location too, you may have some fellow Pelicans near by to take a peak for you :-D Welcome aboard 3.2 Jim
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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08-17-2013, 07:57 AM
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WUNDERWAFFE
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Don't forget cylinder head sensor.
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Charlie 1986 Carrera |
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08-17-2013, 02:53 PM
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Registered
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The cht was a problem I had with a cab I owned that sat for 8 years. As mentioned check the IAC.
Check for vac leaks also. Start with the easy stuff.
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John- 78 Slick Top 930 "Illegitimi non carborundum" |
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08-17-2013, 08:38 PM
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Marble Grey
1986 Porsche 911
