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Home >> Jaguar >> 2016 >> XJR L >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Diagnostic Trouble Code Index DTC: Engine Control Module (ECM) V6 S/C 3.0L Petrol -- XJ/X351) >> DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: V6 S/C 3.0L Petrol, Engine Control Module (ECM) >> Description And Operation >> Powertrain Control Module (Pcm) - 3.0L Petrol >> P0191-21 - Fuel Rail Pressure Sensor Circuit Range/Performance Bank 1 - Signal amplitude < minimum >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jaguar XJ, 2016 Jaguar XJ, 2015 Jaguar XJ, 2014 Jaguar XJ, and 2013 Jaguar XJ. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: This DTC is set when the powertrain control module has measured a signal voltage below a specified range but not necessarily a short circuit to ground, gain too low.
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