MS Newb Questions Regarding AFM and Idle Droop

Reply Subscribe

Thread Tools

Search this Thread

12-31-2007, 10:57 PM

kenzo42

Elite Member

Thread Starter

iTrader: (6)

Join Date: Sep 2007

Location: CA

Posts: 2,016

Total Cats: 13

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.

12-31-2007, 11:11 PM

Stealth97

Elite Member

iTrader: (5)

Join Date: Oct 2007

Location: Canton, Ga

Posts: 2,156

Total Cats: 66

Quote:

Originally Posted by kenzo42

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

01-01-2008, 09:36 AM

hustler

Tour de Franzia

iTrader: (6)

Join Date: Jun 2006

Location: Republic of Dallas

Posts: 29,085

Total Cats: 375

Quote:

Originally Posted by kenzo42

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.

01-01-2008, 05:59 PM

kenzo42

Elite Member

Thread Starter

iTrader: (6)

Join Date: Sep 2007

Location: CA

Posts: 2,016

Total Cats: 13

Do all 1.6 squirters have a droppy idle and AC stalls when running in parallel?

01-01-2008, 06:18 PM

Braineack

Boost Czar

iTrader: (62)

Join Date: May 2005

Location: Chantilly, VA

Posts: 79,490

Total Cats: 4,079

not at all. My idle (was) perfect, A/C or not.

01-01-2008, 06:31 PM

hustler

Tour de Franzia

iTrader: (6)

Join Date: Jun 2006

Location: Republic of Dallas

Posts: 29,085

Total Cats: 375

my diy built pnp is fine with or without the ac on.

01-01-2008, 06:37 PM

cjernigan

Elite Member

iTrader: (13)

Join Date: Oct 2006

Location: Atlanta, GA

Posts: 8,091

Total Cats: 7

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.