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Registered User
Join Date: Feb 2020
Location: TX
Posts: 1
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HVAC/Idle/Stalling Issue (1995)
Hi Pelican People,
I’ve already bothered other forums about this, but I’m trying to cast a wide net here. I live in Texas and we’re getting into those scorching summer months. My 1995 Porsche 911’s idle stays around 750 RPM, but it will drop to <500 RPM when the AC is turned on. Sometimes it’ll even die/stall when coming to a stop, but only when the AC is turned on. The previous owner installed some Fabspeed mods; removed the cats (O2 sensor still installed), Fabspeed exhaust, Fabspeed airbox cover, Cyntex performance chip. The car has a dual mass flywheel. What could cause this? What’s the most cost effective way to approach this problem? |
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05-21-2020, 08:12 AM
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My 95 did the same thing a few years ago. I too have a fabspeed setup but with a Steve Wong chip. Took the ISV out and cleaned it. That cured my problem. Good place to start if you haven’t done it yet.
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05-28-2020, 05:43 AM
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Registered
Join Date: Apr 2006
Location: Ellicott City, MD
Posts: 448
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I would thoroughly clean the ISV (very easy) and then try to get your hands on a stock chip.
Andreas
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1995 993 Coupe, Polar Silver / Black 2014 Audi A4, Monsoon Gray / Black 2002 Toyota 4Runner, Dorado Gold 2001 Toyota 4Runner, Dorado Gold, 604,XXX 1-owner miles 1998 Toyota 4Runner, Oxidized, 5-speed |
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05-29-2020, 03:46 PM
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Registered
Join Date: Apr 2011
Location: mpls
Posts: 9
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06-03-2020, 08:21 AM
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Porsche 993 x2
