Discussion Starter · #1 ·
I need help! My sienna 2000 was leaking oil through the head gasket. After replacing the head gasket and driving about 5 miles, the engine light came on. Mechanic checked and said A/F sensors failed (P1130, P1135). Removed and reinstalled the fuse, the engine light went away but came back on after driving a few miles. Could both sensors failed or something else?