What does code P1121 mean on Jaguar vehicles?
The ECU detects implausible correlation between throttle position and MAF sensor signals.
OBD-II Code Jaguar
P1121 — Jaguar — Throttle Position and MAF Sensor Implausible Signal
The ECU detects implausible correlation between throttle position and MAF sensor signals.
Common symptoms
- Erratic acceleration
Possible causes
- Faulty TP sensor
- faulty MAF sensor
- wiring issues
Initial recommendation
Perform intake and throttle system diagnostics to identify mismatched sensor signals.
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 Jaguar code P1121 with your vehicle's actual symptoms for more complete diagnostic guidance.
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