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Here is what the system looks like.
The red piece is the computer, wiring harness's, a bag full of hardware
and the programmer. Let's go through each piece one at a time.
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This is where two of the wires go from
the harness. The large round one plugs into the computer and the angled
black one goes to the throttle position sensor. The computer has to
talk to the transmission and in turn, the computer gathers in the
information and then tells the transmission what to do. It all depends
on throttle position. That's right....it has to know how far the gas
pedal is being pushed down and then the computer tells the transmission
what to do. How does it do that?
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This is how it knows where the
position is. It does it with a unit called
Acculink
which is a "Throttle Position Sensor" or TPS. This unit bolts
on the carburetors linkage and moves along when the throttle is being
pushed. There is a sensor inside the black piece (like a rheostat) that
relays information back to the computer through three wires. The
computer has to know where the throttle position is to be able to
up-shift, down-shift along with a host of other things which we'll get
into later.
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This is where the plug goes that has
the three wires. The linkage attaches to the round steel piece and is
adjustable. Now all this is very small and goes under the air filter,
next to the carburetor. I guess this is a brand new system that they
came out with in March of this year. The old way used a cable that went
to a box that does the same basic thing. Compushift gives you the old
setup just in case you want to use it. Let's take a look at it.
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