2007 Apex attak with PC3

[Yamaha4life1990]

Hey guys. Installed a hauk exhaust, air box mod, power commander 3 and a wideband afr gauge. Installed everything runs absolutely awesome and snappy as hell. Problem is my idle is at 1500 rpm and wont go lower
I played with the adjusting knob on the left side of the throttle bodies but doesn't change anything.
Any advice ?? Thank you

 

[sideshowBob]

Hey guys. Installed a hauk exhaust, air box mod, power commander 3 and a wideband afr gauge. Installed everything runs absolutely awesome and snappy as hell. Problem is my idle is at 1500 rpm and wont go lower
I played with the adjusting knob on the left side of the throttle bodies but doesn't change anything.
Any advice ?? Thank you

What is the AFR gage saying at idle?

 

[Yamaha4life1990]

What is the AFR gage saying at idle?

Aft is reading between 12.0 and 12.5 at idle

 

[sideshowBob]

I thought you might be lean at idle but your AFRs are good. You may need to calibrate your TPS to sync up with your PC3 I know it was a necessary step when installing a PC5.

 

[Macheater]

Sounds like the IAC is stuck or defective.

 

[Yamaha4life1990]

I thought you might be lean at idle but your AFRs are good. You may need to calibrate your TPS to sync up with your PC3 I know it was a necessary step when installing a PC5.

Figured it out, the previous owner had that mixture screw cranked way in, got it idling at 1400 now which from what I've read is perfect.

 

[74Nitro]

Figured it out, the previous owner had that mixture screw cranked way in, got it idling at 1400 now which from what I've read is perfect.

What mixture screw is that?

 

[Yamaha4life1990]

What mixture screw is that?

Sorry not the mixture screw. The idle screw on the theft side of the throttle body pack. The one with the black knurled end on it.

 

[Macheater]

Sorry not the mixture screw. The idle screw on the theft side of the throttle body pack. The one with the black knurled end on it.

Isn't that what you said didn't have any effect in your first post???

 

[Yamaha4life1990]

Isn't that what you said didn't have any effect in your first post???

Yes, I didnt realize the guy had it wound all the way in so i only backed it off maybe 3/4 a turn and nothing happend so I thought maybe a I had a different problem. But when I turned it back a bit more my idle finally dropped. I figured it would be really sensitive moving that screw and thought 1/2 turn or so would show a difference hence the post. Thanks everyone