P29B4 Bugatti Type 18 OBD Code

OBD/2 P29B4 error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

P29B4 Bugatti Type 18 Error Code Repair Process :

If your vehicle failed a P29B4 test and the P29B4 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look : Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Difficulty Level (Easy)

Repair Time (20 Min.)

Cost Prediction : $ 20-50

Common Causes of Bugatti Type 18 P29B4 OBD2 Code

A common cause of code P29B4 is the failure of , but there are several other possible causes as well, such as ;

• Exhaust tube
• Faulty Crankshaft Position Sensor (POS)
• Fuel Injectors circuit poor electrical connection
• Starting system circuit Dead (Weak) battery

P29B4 is a kind of Powertrain Trouble Code Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

P29B4 code for other Bugatti cars

You can view according P29B4 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• P29B4 Bugatti Chiron
• P29B4 Bugatti Eb110
• P29B4 Bugatti Eb112
• P29B4 Bugatti Eb118
• P29B4 Bugatti Eb218
• P29B4 Bugatti Id 90
• P29B4 Bugatti Type 101
• P29B4 Bugatti Type 13
• P29B4 Bugatti Type 15
• P29B4 Bugatti Type 17
• P29B4 Bugatti Type 22
• P29B4 Bugatti Type 23
• P29B4 Bugatti Type 251
• P29B4 Bugatti Type 30
• P29B4 Bugatti Type 35
• P29B4 Bugatti Type 38
• P29B4 Bugatti Type 40
• P29B4 Bugatti Type 41
• P29B4 Bugatti Type 43
• P29B4 Bugatti Type 44
• P29B4 Bugatti Type 46
• P29B4 Bugatti Type 49
• P29B4 Bugatti Type 50
• P29B4 Bugatti Type 50b
• P29B4 Bugatti Type 55
• P29B4 Bugatti Type 57
• P29B4 Bugatti Type 64
• P29B4 Bugatti Type 68
• P29B4 Bugatti Type 73
• P29B4 Bugatti Veyron

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