when ever i put the car in neutral to come to a stop the idle likes to stay up around 1400rpms. this is not a big deal but when i cruise with the rpms around this point and let off the gas the car will keep going instead of slowing down. that is what i don't like. i have messed with the tps and its set around 90 now. before it was 94 same thing. will the speed sensor have anything to do with this?? or what else can i look for???? it also take me to come to a complete stop and usually putting in neutral to get the idle down to normal. it just stays up at 1400 to long. idle is set at 900rpms.