LWF Help!!!
#16
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try depressing the clutch much later when coming to a stop. Much like at the last second when the revs are near idle. I am a little shocked that you are having this trouble..
#17
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Originally Posted by JasonAndreas
If your idle is around 500 then something is wrong. Try Monique's suggestion before you mask the real problem by adjusting the ISV. On the PelicanBBS it seems a lot of 3.6 transplants have a similar problem as well as a few regular 993 owners and the problem always pops up after their mechanic has the car and no one has figured out (or posted) a diagnosis (until Monique just did).
HERE are the ISV mod instructions from Tom.
HERE are the ISV mod instructions from Tom.
#18
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I have a MY96 with the LWF, and when coming to a stop, clutch in, right foot on the brake pedal, the car will automatically rev when the R's drop. It sounds kind of cool, like I'm doing it on purpose, but it happens automatically. Just a slight rev, to keep it from stalling I presume. Does you car do this?
#20
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I cleaned my ISV last night and all seems good so far. I saw the epoxy covering the three areas but didn't bother with any of it until I saw what it's like with a good cleaning.
Thanks for the advice guys.
Now it's time for my LWF...
Thanks for the advice guys.
Now it's time for my LWF...
#21
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Originally Posted by chris walrod
try depressing the clutch much later when coming to a stop. Much like at the last second when the revs are near idle. I am a little shocked that you are having this trouble..
Your idle revs are too low but by the way you drive you can prevent stalling issues.
#22
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Alon
Was this the first time you have cleaned you ISV, was it easy, did you follow p-car thread.....what is the bit about the epoxy??? I plan to have a go at mine this w/e just to clean it as it seems a lot of people do this as a routine job .... how often should it be done?
Was this the first time you have cleaned you ISV, was it easy, did you follow p-car thread.....what is the bit about the epoxy??? I plan to have a go at mine this w/e just to clean it as it seems a lot of people do this as a routine job .... how often should it be done?
#23
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Hey guys, not sure if this help in diagnosis but when i unplugged the ISV is idled up to about 850-900. where it should be. Though is was surging, would this problem then be related to Vacum or the ISV.
#24
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Originally Posted by dhicks
Alon
Was this the first time you have cleaned you ISV, was it easy, did you follow p-car thread.....what is the bit about the epoxy??? I plan to have a go at mine this w/e just to clean it as it seems a lot of people do this as a routine job .... how often should it be done?
Was this the first time you have cleaned you ISV, was it easy, did you follow p-car thread.....what is the bit about the epoxy??? I plan to have a go at mine this w/e just to clean it as it seems a lot of people do this as a routine job .... how often should it be done?
#27
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The ISV mod is simple, just dremel the center of the epoxy, break up what's left w/ a pick. 3 x4.5mm hex bolts are then exposed. Rotate the inner core clockwise to inc. idle
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Dirty ISV valves are typically slow to react, which become out of phase with air demand to maintain and quickly adjust for specified idle speed. I would think periodic cleaning will help.
#30
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i had all the problems you guys mentioned, but had the MAF changed and most of the problems disappeared if not for the occasional stalling, i did not have the ISV adjusted and am not prepared to do it, the idling rev of my 94/95 euro 993 remains approx 750rpm. Before i changed out the defective MAF, it remained about 1200 rpm