33 Coupe Transmission 2        8/22/03

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. 
 

 

 

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?
 

 

 

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.
 

 

 

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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