I have the same problem and changed tpc and it didn,t do anything . iam going to change the throttle actuator tomorrow, we,ll see what happens .
Fuel and Air Metering and Auxiliary Emission Controls
P2104 Throttle Actuator Control System - Forced Idle
P2112 Throttle Actuator Control System - Stuck Closed
If it's not the pedal, it has to be throttle body, senor or harness related.
Check your throttle position sensor connector and wiring harness for solid connections and/or damage. These codes are telling you the control loop is open and the ECU has no idea where the throttle blades are. So to be safe but still allow some movement your ECU is running the throttle body in an "open loop" mode which to be safe and prevent engine runaway limits throttle blade movement to some miniscule angle. Try to find a throttle position sensor in a bone yard or borrow one from another S197GT. It's a 5 minute test and you will know in a second if it works or not.
From what I had read and can recall from the Ford factory shop manuals for the S197GT, the drive by wire system is directly controled by the ECU which determines throttle blade position based on what it reads from a position sensor in the throttle pedal assembly. The ECU sends a control signal to the throttle body motor and the position of the throttle blades is read in degrees by the TPS and returned to the ECU which then comands any corrections or new blade position signals which are then read by the TPS and back through our loop over and over. There are no other active componets in the drive by wire system because all other engine and environmental sensors are in essence feed to the ECU which determines what throttle position to command based on the data it has and the ECU's programing. Everything else is just a connector or a piece of wire.
Without a multimeter you can attempt a quick-fix by taking an allen wrench and adjusting the plunger that stops the throttle plate. Turn it about 1 full turn, try to start it, and it revvv up a little (may go into into limp mode). 1 more full turn, cycle the ignition key 4 or 5 times to reset it, and ?vroom?. You still need a multimeter to make sure your'e in the correct parameters. This does make sense though. The computer re-learns where the TB plate is every time you start the car. The TPS is just a variable resistor. If the Throttle plate starts in the worng position, the TPS will read the wrong voltage.
Hope this points you in the right direction.
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SOURCE: Check engine light on
the last two codes you rote have somthing to do with the electronic throttle control. the gas control is no longer controlled by a gas cable but is now all controlled electrical. so this is not a self fixer. must be checked by dealer or someone that knows what thay are doing.
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My 2006 fod Fusion check engine light along with the symbol of a tool (wrench?) popped on this morning. The tool symbol went back off but the engine symbol is still on.
Where is the plunger located and what are the correct parameters? I think I have the same problem but I cannot get the codes with my pre-CAN OBD-II scanner.
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