What Does P2140 Mean?
The PCM detects that throttle position sensor E and accelerator pedal position sensor F voltage signals do not correlate properly. This indicates a mismatch between pedal input and throttle response that could affect engine control.
Safety Warning
Do not drive the vehicle. Throttle control may be unpredictable or limited to limp mode, creating dangerous conditions during acceleration or highway driving.
Common Causes
35%
Faulty accelerator pedal position sensor providing incorrect signal
30%
Throttle position sensor failure or drift out of calibration
18%
Wiring issues between sensors and PCM including resistance or shorts
10%
Throttle body mechanical binding or contamination affecting position
7%
PCM calibration issue or internal circuit failure
Diagnostic Steps
1
Step 1: Monitor throttle position and pedal position sensor voltages simultaneously with scan tool
2
Step 2: Slowly depress accelerator pedal and verify both sensors track smoothly without dropouts
3
Step 3: Measure voltage at each sensor connector and compare to specification ranges
4
Step 4: Inspect throttle body for carbon buildup or binding, clean if necessary
5
Step 5: Test wiring continuity and resistance between sensors and PCM
Estimated Repair Cost
$200 - $800
Parts + labor, varies by vehicle and location
The PCM detects that throttle position sensor E and accelerator pedal position sensor F voltage signals do not correlate properly. This indicates a mismatch between pedal input and throttle response that could affect engine control.
The most common cause of P2140 (Throttle/Pedal Pos Sensor/Switch E / F Voltage Correlation) is: Faulty accelerator pedal position sensor providing incorrect signal
Typical repair costs for P2140 range from $200 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Do not drive the vehicle. Throttle control may be unpredictable or limited to limp mode, creating dangerous conditions during acceleration or highway driving.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2140 to identify the root cause.
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Quick Info
Category
Powertrain
System
Engine Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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