Purdone

My sister has a 2002 WS6. It is idling very low, and I'm just looking for someone who can bump up the idle. Shouldn't take long at all. Can anyone help? The car has a Lid and a K&N, otherwise stock.

Since someone will probably ask, here's a pic of my sister:

quadd2244

iTrader: (13)

How low is the idle on her car? Mine is set from speed inc around 850 or so and its a A4

Purdone

Last time I was in it I think it was down around 500, and it is an A4.

twizted_creations

iTrader: (4)

Dude. Being stock, all you should have to do is pull the leads off the battery for a good 15 minutes. Reset the computer. Should be that easy... If not, then there is some other issue.

quadd2244

iTrader: (13)

Yeah thats way to low. Im sure someone local might have a tuner that can bump up the timing or call Speed inc or FLP or straightline...

quadd2244

iTrader: (13)

Maybe someone messed with the throttle body at 1 point? I know there is a small idle screw on it but I would not touch it if its never been touched

VFNAndrew

iTrader: (1)

my mustang was idle low so i just adjusted it with the set screw on the TB been fine since that sorry about the mustang i know its a chevy site but i figured it would help.

Purdone

I didn't know there was an idle screw on the LS1 throttle body. I'll look into this.

quadd2244

iTrader: (13)

Yeah I would get a few more opinions first since it should not ide that low. The screw we are talking about if your looking at the TB is on the left side you might need to take the TB part way off and if you do turn it just give it a 1/4 1/2 turn at the most. It will open or close the TB blade but I think you have another problem besides that so id wait for more responses

ibanez7

iTrader: (7)

the things to check are

Idle screw on Thottlebody

IAC and throttle position sensor.

more then likely it will just be the screw

quadd2244

iTrader: (13)

But if nothing eas ever touched why al of a sudden would it idle way down?

Purdone

She's had the car about 3 years. I've always thought it idled low. She had to take it in today because the battery cable was shot, and the car would lose all power. I bet it was fun when she was driving down the road and all the idiot lights came on. The mechanics must have said something about the idle.

quadd2244

iTrader: (13)

Yeah id take a look at the TB idle screw if I were you. 500rpms is way to low it should be around 800 or so.

twizted_creations

iTrader: (4)

Yeah and at 500 I bet she wasnt charging all that well anyways...

I almost forgot about that screw. I have a scanner to check if its running where its supposed to, but cant change it other than that screw.

Tuner@Straightline

A stock car's idle table is set to about 650rpm if I remember correctly, if the tach is off by a "hair" it would look like it's idling just above 500rpm. If you'd like to play with it, you can set the idle screw, but the adaptive learning will bring it back over time to what ever it's set at (desired Idle speed, and g/sec of airflow past the IAC), plus the computer allows +-8 degrees of timing for idle rpm control.

quadd2244

iTrader: (13)

WOW I didnt know stock idle is that low. So yeah if the tach is off a little bit it will look real low