[marc1961]

i have a 5.0 v8 out of a 89 f150 in my mustang and it has started to slowly increase the idle as time goes on starts out at about 1500 and increases to about 2000 when it warms up shows a code for the idle air control and the throttle pos. sensor but they are both in limits no apparent vac. leaks either should i just start replacing sensors other than this it runs [email protected]