Re: 92 topaz idle
Replacing the sensor won't hurt. To have the vehicle idle that high isn't good as if it suges forward (sensor completely dies) you won't be able to keep the vehicle stopped via brakes when in gear. I had a similar problem with an old '92 Dodge Spirit of mine. Great car, but it nickled and dimed me so much that I sold it and bought a '93 lol.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!