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-   -   Pfc Idle Hunting (https://www.nopistons.com/ecu-discussions-23/pfc-idle-hunting-34858/)

toddp31 03-02-2004 05:09 PM

I can't get my car to stop idle hunting once warmed up and It is getting really old. The idle adjustment screw is all the way tight, I have let it idle for up to 1 hr to let it learn. It has to be something else https://www.nopistons.com/forums/pub...1047683561.gif Also I have no vaccum leaks and everything is connected. It is starting to drive me crazy

DeaconFrost 03-02-2004 06:46 PM

disconnect the idle control motor.

toddp31 03-02-2004 06:48 PM

sorry i forgot to say the idle motor is disco

toddp31 03-03-2004 10:36 PM

anyone, i know I am not the only one.

mazdaspeed7 03-03-2004 11:41 PM

Check the EGO correction at idle.

toddp31 03-04-2004 09:59 PM

EGO??? On the commander, if so what should it be?? Do you know what it does or what it stands for?

DeaconFrost 03-05-2004 01:29 AM

play around with the throttle screw...not the idle control screw. if you have already...disregard this. https://www.nopistons.com/forums/pub...IR#>/smile.png

mazdaspeed7 03-05-2004 05:07 PM


Originally Posted by toddp31' date='Mar 4 2004, 11:59 PM
EGO??? On the commander, if so what should it be?? Do you know what it does or what it stands for?

The O2 sensor. Is your car in open loop at idle?

toddp31 03-07-2004 04:09 PM

Open loop is when the O2 is disconnected right? Or is it the other way around? https://www.nopistons.com/forums/pub...1047683561.gif Currently the 02 is connected, but I turned the o2 sensor option off on the commander. I will try disconnecting it and see what happens.

mazdaspeed7 03-07-2004 04:51 PM


Originally Posted by toddp31' date='Mar 7 2004, 06:09 PM
Open loop is when the O2 is disconnected right? Or is it the other way around? https://www.nopistons.com/forums/pub...1047683561.gif Currently the 02 is connected, but I turned the o2 sensor option off on the commander. I will try disconnecting it and see what happens.

Excuse me, im an idiot, and I mixed them up. Closed loop is where the engine uses feedback from the O2.



If its off, it shouldnt be the problem.



Next idea. Are you using the pill in the boost sensor line? Fluctuations in vacuum from a ported engine could cause that.


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