 fiav |
 Apr 21 2010, 09:19 PM
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 Person of Wisdom  Group: Members Posts: 229 Joined: 8-July 09 From: mapleton Member No.: 18,894  |
Tell me what you know about them. Pros and cons of blocking off. Thanks
-------------------- 1991 GSX
1991 TSI AWD 1997 GST (wifes) 1995 Chevy k 2500 2005 Dodge Grand Caravan (chick magnet) |
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Apr 26 2010, 01:45 PM
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 DSMCentral Freak Group: Admin Posts: 490 Joined: 15-September 08 From: East Peoria, IL Member No.: 8,716 |
I could see the 2 part control causing issues, with the coolant driven and electronic driven. Idle surge is usually from the computer overcompensating for some other issue. While you can fix the surge by bypassing, you may have other issues that need addressed.
Not trying to contradict NCGalant by any means, he's way more of an expert than I am, and I don't know the inner workings on DSMs, so don't know if it'd have any major effect. Obviously if you have no means of tracking down what causes the surge, then that would be a good workaround. But I could see the issue lying more in the coolant driven side failing, or some other problem causing the computer to adjust erratically. Another thought would be, is there a electronic controlled FIAV you could swap on, that doesn't have the coolant controlled valve? -------------------- 1978 Mustang II King Cobra
89 5.0HO, Stock Short Block, Ford F303 cam, 1.7:1 Crane Roller Rockers, Holley 650 Doubler Pumper, MSD 6AL, Pocket Ported stock heads, Hedman Long Tube Headers 5 spd Manual Full roll cage, 9" full floater w/Currie trac lock/373 gears, RCI Fuel Cell Project Page: http://www.brandttuning.com/projects.htm |
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Apr 26 2010, 01:58 PM
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#3
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 Post Master Group: Members Posts: 908 Joined: 7-October 03 From: Chillicothe, IL Member No.: 182 |
QUOTE (dualdj1 @ Apr 26 2010, 02:45 PM)  I could see the 2 part control causing issues, with the coolant driven and electronic driven. Idle surge is usually from the computer overcompensating for some other issue. While you can fix the surge by bypassing, you may have other issues that need addressed. Not trying to contradict NCGalant by any means, he's way more of an expert than I am, and I don't know the inner workings on DSMs, so don't know if it'd have any major effect. Obviously if you have no means of tracking down what causes the surge, then that would be a good workaround. But I could see the issue lying more in the coolant driven side failing, or some other problem causing the computer to adjust erratically. Another thought would be, is there a electronic controlled FIAV you could swap on, that doesn't have the coolant controlled valve? I guess I've never been through it far enough to block off just the FAIV as it seems to cause the bulk of the problems from what I've found. A fully electronic solution or simply blocking off the FAIV would be a good solution to that problem and get rid of some coolant lines in the process. -------------------- GVR4 866/1000 = the perpetually broken car
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Posts in this topic
Patterson353 fiav Apr 21 2010, 09:19 PM
dualdj1 Computer controlled vehicles rely on idle air cont... Apr 22 2010, 10:35 AM dualdj1 Guess I should've read into it a little more f... Apr 22 2010, 10:42 AM ncgalant I have had very little good luck with any of mitsu... Apr 26 2010, 01:30 PM
dualdj1 I think I was mixing up my terms a bit, and see th... Apr 26 2010, 02:23 PM |
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