Maybe nissans with screw adjuster IAC's do that, but guess what lots of "gasoline engines" are most certainly RPM+CTS linked for idle.
Originally Posted by
greenman100
NO.
Gasoline engine rpms are solely dependent on how much air is getting into the intake manifold.
High idle is ALWAYS a vac/intake manifold gasket leak and/or malfunctioning IACV. Period.
Not timing.
Not CTS.
Not TPS.
Your CTS is just there to richen the mixture when the engine is cold.
Thanks for playing.