🚗 Classic Fault — Ford (1982–1993)
Sierra EFI throttle position sensor fault
💰 Estimated Repair Cost
$20 – $80 GBP
Parts and labour estimate
🔧 Tools Required
Multimeter
📋 Overview
The throttle position sensor on injected 2.0 models drifts out of calibration or fails, causing hesitation.
🩺 Symptoms
- Hesitation on acceleration from idle
- surging at part throttle
- poor economy
- cutting out on deceleration
🔍 Possible Causes
- Failed or mis-adjusted TPS
- dirty injectors
- vacuum leak
🛠️ Diagnosis Steps
Check TPS voltage with ignition on — should read 0.4-0.5V at idle, rising smoothly to 4.5V at full throttle
✅ Most Confirmed Fix
TPS replacement and calibration
80% of users confirm this fix worked (19 reports)
🩺 Related Symptoms
🔗 Other Ford Faults
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