B2691 Skoda Scala Diagnostic Trouble Code
B2691 Skoda Scala code definition:
B2691 is a kind of OBD-II Diagnostic B-Body Diagnostic Trouble Code for Skoda Scala.
B2691 Skoda Scala is triggered when the bank 1 camshaft position sensor doesn't match the signal from the crankshaft position sensor. The PCM then uses this data to provide the right strategies for the fuel delivery and ignition timing of the engine.
Symptoms
Symptoms of a B2691 Skoda Scala diagnostic trouble code may include:
- Vacuum leak on the engine
- Reduction in engine performance, especially at low RPM levels
- Engine surge
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
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Possible Causes :
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
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Common Misdiagnoses
- Crankshaft Position Sensor Circuit Performance Problem
- TP Sensor Learn Not Complete Problem
- Low Coolant Circuit Problem
- Cruise Control System - Vehicle Accel Too High Problem
- Kick-Down Switch Failed Short Problem
Repair Processes :
Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.
If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.
Process Tips
Diagnostic trouble code B2691 Skoda Scala is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.
Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before B2691 Skoda Scala.
Fortunately, B2691 Skoda Scala is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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