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Registered
Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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idle stabilizing valve - shorted b and c - idles perfect.
To refresh your memory........ my cars idle was fluctuating up and down....and some times would go as low as to want to stall.
When I short b&c in the test plug it disables the idle valve and the idle stays ~900 rpm............. if I pull the short out the 700-1100 rpm bouncing returns! Question: 1. Can the car be run with b&c shorted? 2. If disabled the idle valve and my idle is perfect. The assumption must be a faulty idle valve?.......... any other possibilities? I don't want to replace the valve to only find out the problem was else where? Thanks!!
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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07-29-2003, 02:02 PM
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Which car is this?
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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07-29-2003, 03:06 PM
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Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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oh.... the 951.
Sorry. I have a new MAF and turbo and injectors and other goodies.... I was having cold start issues and now I am having this wandering idle that is cured with b and c shorted. 
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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07-29-2003, 05:49 PM
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vott does ziss do?
Join Date: May 2003
Location: Seattle
Posts: 6,676
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faulty idle valve?????? that's my guess.
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07-29-2003, 06:12 PM
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vott does ziss do?
Join Date: May 2003
Location: Seattle
Posts: 6,676
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oh wait, you said that
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07-29-2003, 06:12 PM
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Join Date: Feb 2001
Location: Viera FL
Posts: 5,642
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Sounds like a crapped up valve
Clean it out and try again before you replace Many times they can be salvaged AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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07-30-2003, 02:03 PM
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Registered
Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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I'll try to clean it up.....
Is it just a mechanical valve? brake cleaner............blow it out.....and away I go?
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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07-30-2003, 02:41 PM
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It's mechanical, but cleaning is USUALLY a temporary solution, if at all.
Also, disabling the unit stabilizes idle, and that's cool but regardless of what's going on w/the idle stabilizer, idle should never get as low to the point of almost stalling. Does this problem usually occur when the engine is cold, or all the time? Ahmet
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Cheers! |
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07-30-2003, 04:44 PM
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1983 Porsche 944 2.5 liter
1984 Porsche 944 2.5 liter, 8 valve 
