Engine-Codes - Ford - P0068 2002 FORD F150

P0068 2002 FORD F150 - Manifold Absolute Pressure/Mass Air Flow Sensor - Throttle Position Correlation

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P0068 2002 FORD F150 Possible Causes

  • Faulty Mass Air Flow (MAF) sensor
  • Large vacuum leak
  • Leaking air duct system
  • Mass Air Flow (MAF) poor electrical connection
  • Manifold Absolute Pressure (MAP) poor electrical connection
  • Faulty Manifold Absolute Pressure (MAP) sensor
  • TP sensor not seated properly
  • Faulty Throttle Position (TP) sensor

How is the P0068 2002 FORD F150 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

Drive vehicle and exercise throttle and TP sensor in all gears. A TPNS PID less than 4.82% (0.24 volt) with a LOAD PID greater than 55% or a TPB V PID greater than 49.06% (2.44 volts) with a LOAD PID less than 30% indicates a hard fault

What is the cost to diagnose the P0068 2002 FORD F150 code

Labor: 1.0

The cost to diagnose the P0068 2002 FORD F150 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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When is the code detected?

The Powertrain Control Module (PCM) monitors operation rationality check by comparing sensed throttle position to mass air flow readings

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of power
  • Engine rough idle

P0068 2002 FORD F150 Meaning

The Powertrain Control Module (PCM) monitors a vehicle operation rationality check by comparing Throttle Position (TP) to Mass Air Flow (MAF) readings. If, during a self-test, the comparison of the TP sensor and MAF sensor readings are not consistent with the calibrated load values, the test fails and a diagnostic trouble code is stored in continuous memory.

More Information

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