idle problems after a new tps? anybody got some input?

[Cracker]

ok, well my car idled very shitty. 2000rpm constant all the time, so i put a new tps in. car dropped idle down to 750-1000 rpm with adjusting the biss screw. well i thought awesome, works now. so im driving and now the check engine light is coming on and the idling will be grgeat sometimes and terrible others. usually up near 2500 to 750 rpm back and forth. it never stays where its suppossed to. im thinking maybe the isc? anybody else got any idea's?

 

[94LsrRSNT]

I just fixed my idle problem by cleaning out the chamber the ISC sits in, mainly where it seats. You will need to reset the BISS back to where you had it if the works. Good Luck.