What does code P1140 mean on Hyundai vehicles?
The ECU detects implausible signals from engine load monitoring based on MAF calculated pressure.
OBD-II Code Hyundai
P1140 — Hyundai — Engine Load Monitoring (MAFfrP) Signals Not Plausible
The ECU detects implausible signals from engine load monitoring based on MAF calculated pressure.
Common symptoms
- Irregular performance
- hesitation
Possible causes
- Faulty or contaminated MAF sensor
- wiring issue
Initial recommendation
Inspect and clean MAF sensor, verify wiring integrity.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Hyundai code P1140 with your vehicle's actual symptoms for more complete diagnostic guidance.
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