hi buddy.
no chock on these things. was that the IAC idle valve? or injector.
you are AOK , this puppy is free running. NO CAN HIT VALVES with pistons.
check engine lamp is it on key one, no start then out will running.?
next sensor, we can measure them, it is easy is
ECT.
new oxysen
lower 20s can be ok in town, 22-25 mpg range?
measure ECT sensor , hot with ohm meter, net 200 or so ohms. hot.
ECT has 2 pins , find it here.
how-to-find-EFI-parts
GREAT find, on the belt. bad timing stinks, huh ?