Team,

So when I'm on neutral or coasting my rpms go up and down below 1000 rpm. I recently switch the spark plugs, got new air filter and changed the oil, but for some reason it keeps doing it. Can someone let me know what the problem can be?

Thanks
-Lehi

 

Could you please let us know what type engine you have? and how many kms you have?

A random guess I would say the throttle body needs cleaning. Just a guess tho

 

2.4 super charged with 97k miles

I changed the spark plugs, changed air filter and did an oil change hoping it will help but still doing the same thing.today on the way home I was at a complete stop when my car started to roll the rpm again started to go up and down

Thanks for the responds !!!

 

Yep sounds like the throttle body needs a cleaning.

I am not sure if this works or if its beneficial on a supercharged model, But check out Powell racings oil/air separator to help avoid or at least get more miles/kms out of it before it needs a cleaning again.

Maybe let a supercharged guy chime in to see if the separator is beneficial for you or do some thread searching and see.

Hope this helps, Keep us posted

 

has it always done it since you supercharged or is it just now happening?

 

Welcome! Please post up pictures!

 

It's stock super charged from the manufacturer. It has never happen before. It just started acting up

 

@yelloweye Pic of my car

 

ah then you must have a 2.0 nvm then

 

idle hunting... check your throttle body.

more than likely it needs a cleaning.

 

Ah, so the Supercharged 2.0L LSJ. Sorry, thought you had supercharged the 2.4L LE5 that came on the lower model SS.

Is the check engine light on? Any codes?

 

No check engine lights or any codes.