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Old 12-31-2007, 11:57 PM   #1
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Default MS Newb Questions Regarding AFM and Idle Droop

1) Why remove the AFM if you're running a recirculated BOV w/ MS in parallel? Doesn't sound like it restricts flow much.

2) Is there any way to avoid the idle droop/AC stall other than getting a variable TPS? I have a 1.6, btw.

Thanks.
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Old 01-01-2008, 12:11 AM   #2
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Quote:
Originally Posted by kenzo42 View Post
1) Why remove the AFM if you're running a recirculated BOV w/ MS in parallel? Doesn't sound like it restricts flow much.

Thanks.
Well actually it does... My 97 has a less restrictive AFM than yours and removing it was worth 5hp. It will also simplfy your intake plubing. I cant think of one reason why you'd want to keep it, given the chance you have to easily remove it.

As far as your idle droop, hopefully a 1.6'er can chime in
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Old 01-01-2008, 10:36 AM   #3
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Quote:
Originally Posted by kenzo42 View Post
1) Why remove the AFM if you're running a recirculated BOV w/ MS in parallel? Doesn't sound like it restricts flow much.

2) Is there any way to avoid the idle droop/AC stall other than getting a variable TPS? I have a 1.6, btw.

Thanks.
Ya know how it feels like the motor is sleepy under4200rpm...that's because the AFM sucks.


and no. Its too easy not to install.
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Old 01-01-2008, 06:59 PM   #4
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Do all 1.6 squirters have a droppy idle and AC stalls when running in parallel?
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Old 01-01-2008, 07:18 PM   #5
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not at all. My idle (was) perfect, A/C or not.
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Old 01-01-2008, 07:31 PM   #6
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my diy built pnp is fine with or without the ac on.
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Old 01-01-2008, 07:37 PM   #7
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Sounds like you might need to clean your IAC valve. Take the throttlebody off and clean that all out to including the idle adjustment hole and all that mess.
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Old 01-03-2008, 04:21 PM   #8
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So there are NO advantages in keeping the AFM?
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Old 01-03-2008, 04:23 PM   #9
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why would there be.

you already take 2 out of three functions away from it.

It's just a big hunk of metal.
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