Hi i have a 1995 Chevrolet s 10 , engine 2.2
When you start the engine it runs very nice, and take it out from the garage, and give a littel throttel, it goes up to 22-2500 rpm, cold engine, and sometimes it holds the rpm, on hot engine 15-1800 rpm.
It come and go from day to day
Do anyone have any conclusion on this
Hope to hear from you , and get a littel help to this bad problem
Sincerely MB MOTOR