TPS Sensor
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Joined: Sep 2004
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TPS Sensor
I have made a little progress. I spent the weekend looking for codes and specifics on my 88 F250 with the 351. When I short out the code reader the Check Engine light blinked 23. The only thing I can find for 1988 and code 23 is the TPS. Does anyone have the actual voltage readings that the TPS should have so I don't have to pay for another sensor that is not needed?
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Joined: Jun 2004
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From: Central NY
TPS Testing
Testing your TPS *
The TPS is available from you friendly neighborhood parts store for $29.00 to $34.00.
**To check the operation: switch igintion to ON (engine not running) and install probes of the volt-ohm meter into the ground and signal wire on the backside of the electrical connetor. Note: Be careful when back probing not to damage connector or wiring harness. Sensor should read 0.50 to 1.0 volts in idle position. Rotate the throttle to the full-open position and sensor should increase voltage to 4.0 to 5.0 volts. If TPS voltage readings are incorrect, replace. It is not difficult to replace if necessary.
** Reference source: Haynes Manual #36058, 3/22.
* Thanks to Tex94F250 for the original post
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The TPS is available from you friendly neighborhood parts store for $29.00 to $34.00.
**To check the operation: switch igintion to ON (engine not running) and install probes of the volt-ohm meter into the ground and signal wire on the backside of the electrical connetor. Note: Be careful when back probing not to damage connector or wiring harness. Sensor should read 0.50 to 1.0 volts in idle position. Rotate the throttle to the full-open position and sensor should increase voltage to 4.0 to 5.0 volts. If TPS voltage readings are incorrect, replace. It is not difficult to replace if necessary.
** Reference source: Haynes Manual #36058, 3/22.
* Thanks to Tex94F250 for the original post
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