that amount of tps voltage wont cause the problem...timing belt could possibly be the cause, but im shooting for the purge cutoff solenoid....rob the one from your sohc and find some place to mount it. it should still plug into your existing harness and buy a vacum "T" and split the vacum somewhere on the manifold if you dont have an extra spot for it. one line from purge goes to manifold(lower line) and the other goes to the charcoal canister... I forgot to hook this ish up on a b16 swap before and it ran like A$$