Hi guys,

I recently purchased a 2002 Z28 and have question regarding the enigne idle speed. It seems after the engine has completely warmed up, the engine idle speed is at around 1000rpm. Isn't that a bit high? All the other cars I experanced with usually have a idle speed of around 650 to 800 rpm. I'm wondering why the LS1 enigne has such high idle, or is it just my car.

Thanks,

Walter

 

nope, mine idles somewhere between 700 and 900.

 

Mine idles about 900-950 or 1K, but you should know that our tachs are inaccurate as hell !

 

I take it you have an M6? My 2002 M6 Z28 idles at slightly under 800 while in N and slightly over 800 when in gear after being fully warmed up. So, the 750-850 range seems to be what I've heard from other M6 LS1 owners.

Mike

 

thats normal.. depending on year your tach reads different. just ignore it.

 

I think my car usually idles around ~750rpm when in Park or Neutral, and around 600rpm when I'm stopped but with the car left in gear. Like others have said, I wouldn't really worry about it unless it sounds too high.

 

i know this isn't an LS1, but my dad's 2000 silverado with the 5.3 engine(which is ls1 based) idles at 1k-1100 when it's first started, but after that it idles around 500-600 when warmed up.

 

I have a 99 TA and I have a very low idle around 500 or 600 in gear but it goes up to about 700 when in neutral I know this isn't normal but don't know how to fix it with out a programer is there a way and help will be appriciated....

 

You must have a M6 tranny.


My '01 Z28 A4 would idle around 600 or less, but the first thing I noticed when I got the '01 WS6 M6 is that the idle speed is around 900 - 1000.

It's normal (if you have the M6)

 

These information has been very helpful to me. After knowing the tachometer might not be reading correctly on some of the Camaros, I went and check the idle speed with the autotap scanning tool. The idle is reading at around 800~850 RPM on my laptop. Guess the tech just wasn't calibrated correctly from the factory.

Walter