Idle Rpms Of 1998 Ls400

[frankster]

Does anyone know the "correct" rpms for a cold and warm engine?

My cold idle is 12.5-1300 and seems a little fast.

My warm idle is 500.

Thanks,

Frankster

[nc211]

That's actually right about spot-on. The idle is higher when cold per an EPA request to reduce pollution. A warmed up engine pollutes less. All cars have been doing this since the early 90's. My old 95' LS400 did it too, same idle points. No worries.