This is on a 99 V6. The car will ocassionally run rough during idle and have some hesitation on accelerating from a stop. Sparks, wires, and timing are good. Any idea?

-Chris

 

try your tps i change mine and it fixed my idle problem i have the i-4 tho also try the distributer un less that is good along with ur splugs

 

im having the same problem with my 97 4cylinder 2.0. im just not sure what the tps is, or my car even has that. any info?

 

yes it has it ...it's the Throttle Positioning Sensor ...It can be monitored for smooth voltage with a voltmeter , since yours happens when it's hot I doubt thats your problem ...

 

Is it crank angle sensor season again, already?
There's a magnet on the crank angle sensor and as we all know, a magnets field weakens when heated.
Checking the distributor rotor and cap is a good idea too BlackVenge.