Throttle Position Sensor (TPS)
While I had my Throttle body out I decided to check the TPS. Please refer to a shop manual for what I may have missed. There is also another way to check it by rigging up wires and turning the key on to check the voltage. My pictures did not turn out well and decided to exclude them.
Also, this needs to be done while the Throttle Body is out of the car due to the fact the fuel rail blocks the lower screw to adjust it.
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Hook up some jumper wires (Alligator clips) to the TPS. The POS+ to the Number 1 terminal and the NEG - to the number 4. The terminals are: 4, 2 and 1 There is a space for #3 but there is nothing there.
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Measuring the resistance, set meter to Ohms. It should read 5K Ohms. This is the resistance in the closed throttle position. |
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Now, move the POS + jumper wire to the number 2 terminal. Leave NEG - on number 4.
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With the throttle closed it should read .9K
Ohms (Changed per Data logger). Pic shows 1.1K Ohms.
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Open the throttle all the way open and the meter needle should move while opening and stop at 5K Ohms. |
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Loosen the two screws (Phillips screwdriver) and rotate it to set the closed resistance to .9K Ohms (Haynes say 1.1 Ohms but Datalogger rebukes that). The pin resistance will remain about the same (5K).
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