LEMON Manuals: Even more car manuals for everyone
Home >> Jaguar >> 2011 >> XJ Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Diagnostic Trouble Code Index DTC: Engine Control Module (ECM) V8 5.0L Petrol/V8 S/C 5.0L Petrol -- XJ/X351 >> DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: V8 5.0L Petrol/V8 S/C 5.0L Petrol, Powertrain Control Module (PCM) >> Description And Operation >> Powertrain Control Module (Pcm) - 5.0L Petrol >> P21A1-85 Cylinder 6 Air-Fuel Ratio Imbalance - Signal above allowable range >> Possible Causes

Possible Causes

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