Fault Code 23-TBI


Notes:  For throttle body injected (N/A) models only

Description: Throttle body temperature sensor signal out of range
Power loss light:  On
Limp-in mode:  Throttle body temperature of 70^F is assumed

Possible Causes

Throttle body temperature sensor failure - The sensor should measure 9,120 ohms to 10,880 ohms at 77^F.  This sensor is located on the side of the throttle body, below the throttle plate.

Bad connection or wiring - Check the wiring and connections between the sensor and the logic module (or SMEC).  Clean and regrease any corroded connectors with dielectric grease.

Diagnostic Method

Trigger Parameters

- Sensor output less than 0.06V or greater than 4.98V

Results If Component Fails

Fault code 23 is stored, the power loss light is turned on, and the logic module will enter limp-in mode, assuming a throttle body temperature of 70^F.
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This page is maintained by Russell W. Knize and was last updated 08/28/98. Comments? Questions? Send email.

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