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B1721 Bugatti Type 41 Diagnostic Trouble Code

B1721 Bugatti Type 41 code definition:
B1721 is a kind of OBD-II Diagnostic B-Body Diagnostic Trouble Code for Bugatti Type 41.

B1721 Bugatti Type 41 is defined as Ignition Coil B Primary/Secondary Circuit Malfunction.This code is a generic trouble code, meaning it applies to all vehicles equipped with OBD-II tool, or vehicles made since 1996 up to present. As you drive and when specific conditions are slowly met, the vapors will gradually purge from the charcoal canister and will get burned within your engine.

Symptoms

Symptoms of a B1721 Bugatti Type 41 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.

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)

Common Misdiagnoses

1. IC Circuit High Voltage Problem
2. Control Module Throttle Actuator Position Performance Problem
3. Air Conditioning (A/C) Clutch Feedback Circuit High Voltage Problem
4. Cruise Vehicle Speed/Set Speed Difference Too High Problem
5. PCM Stack Overrun Problem

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs.

Process Tips

Diagnostic trouble code B1721 Bugatti Type 41 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 B1721 Bugatti Type 41.

Fortunately, B1721 Bugatti Type 41 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

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