Hello, I have a 93 for escort, when I start the car cold then idle is fine,
but if the motor is warm, then the car starts rpm goes to 1000 like normal
and then drops down to below 100 and sometimes stalls, then goes back to
normal.

Also lately it started getting worce were idle while on park goes up and
down constantly but not always. If I have the car in drive then it's fine.

I had post on here in the past and was told it may be the throttle body
that needed cleaning, I tried this and it did not fix the problem.

Any help would be good!

Thanks
Michel Belanger