Just checked the timing on my 4Runner. Weird thing. The idle was a little high (not much.. need to clean the butterfly think) and when I jumpered the diag box there was no drop in idle speed/retard in timing. I brought the idle down (butterfly close by hand) and then the jumper worked. I have never noticed this before with any of the numerous 22res I have had. Could the TPS be not functioning properly. PS. I have been trying to figur out why the engine performance is feeling somewhat sluggish. Anyone experience this?