P1125moderate severityPowertrain
TP Sensor Intermittent
on 2011 Lincoln MKX 3.7L V6 · AWD
What this code means
The Throttle Position sensor signal is intermittent. The PCM detects signal dropouts or erratic voltage changes from the TP sensor.
Symptoms
- Check Engine Light
- Intermittent stumble
- Surging
- Erratic idle
- Stalling
Common causes
- Worn TP sensor with dead spots
- Loose TP sensor connector
- Damaged wiring
- Corroded connector pins
Diagnostic steps
- Monitor TP sensor voltage while slowly opening throttle — look for dropouts
- Wiggle test connector while monitoring
- Inspect connector pins
- Test wiring continuity
Repair notes
Replace TP sensor if it has dead spots. Repair wiring or connector.
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P0003
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P0004
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