What is code P170? on 1996 Toyota T100

I just bought a 1996 with 215,000 miles and the check engine light turned on. Auto parts store gave me code 170, and I'm wondering if others have experience with this and have recommendations?

Asked by for the 1996 Toyota T100
that code is not in all data recheck and post
1 more answer , 1 more comment
you probably mean...PO170
yes he does and thats not in all data as stated