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2003 Cadillac DeVille
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397 Posts
Discussion Starter #1
Hey all,

My ISC motor died yesterday and I was just wondering - can I just adjust the screw on the piston to match the old ISC motor? I went through my haynes manual and found you had to get a tach, apply 12V to one of the terminals to retract it, etc. blah! Way too complicated and I don't want to spend like 70 bucks on a tach!

Is there an easier way to do this?
 

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6,471 Posts
It's called "min-air adjust" and if you don't do it, the idle and off-idle performance will be questionable at best. You may also see some check engine lights and codes. If you need the procedure, let me know.
 
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