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Home >> Land Rover >> 2015 >> Range Rover Autobiography >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Diagnostic Trouble Code Index V8 S/C 5.0L Petrol, DTC: Powertrain Control Module (Pcm) -- Range Rover/L405) >> Diagnostic Trouble Code Index V8 SC 5.0L Petrol, DTC Powertrain Control Module >> Description And Operation >> DTC P21A2-84: Cylinder 7 Air-Fuel Ratio Imbalance - Signal below allowable range >> Possible Causes

Possible Causes

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NOTE: Monitor description.  Inferred mixture strength (lambda) below threshold, (richer mixture). Monitors cylinder specific fuelling errors which may not be detected by the overall fuel system monitor
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