Oxygen Sensor Returns
Pulling the pipes off the car was the right
decision as the final cost was only $20 with the results shown below.
Quality welding is an art-form of sorts and this guy was good.
Welding Job by a Local Garage - Picture on left shows approximate
Throttle Position Sensor (TPS
Rick provides a GM TPS that's installed in a
custom mounting bracket. You see those two Allen socket screws...well they are
stainless steel 8-32x1/2" Socket Head Cap Screws. I'm telling you this because
you will drop them many times during the installation and later fine tuning of
the TPS module. And at least one of the screws you drop will land somewhere on
you starter never to be seen again. Go spend $2 and buy 4 extra screws, washers
and lock nuts. It's not worth the aggravation not to! Ask me how I know :-)
Houston....we have a problem.....I can't get the
@#*&ing TPS to fit over the adapter because the Air Injection pipe is in the
way. After studying the problem and wondering how Rick could fix it.....I
decided to flex a little muscle and see if I could carefully bend the pipe away
from the carb.
|Pipe was straight up
(Red Line) leaving no room
for TPS to be mounted, so I bent the pipe
to the pictured location
|Now the TPS fits just
|Adapter & Bracket in
||Adapter was finger
tightened to wave washer and the slot lined up to mate with the TPS.
Then it's locked to throttle shaft with hex nut
The TPS mounting bracket is a perfect fit and
mates to the carb/manifold bolts. DO NOT tighten the bolts until you fit the TPS
unit into the bracket. When you insert your TPS into the bracket, you have to
pre-load it. In other words, if the driver slot is in the correct orientation,
it will match with the corresponding slot in the TPS BUT you'll have to rotate
the TPS slightly to get it to fit in the bracket. If the TPS and driver slots
align AND the TPS slides into the bracket without being rotated a little, you'll
end up getting a trouble code when you first start your engine. This will make
sense later. Trust me.