P04B8 Trouble Code

View P04B8 obd/2 error code description and symptoms. P04B8 engine photo

The Camshaft Position sensor will signal the Engine Control Module when the #1 cylinder is ready for the spark plug to fire (top-dead-center on compression stroke). The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P04B8 Error Code Repair Process :

For a/c refrigerant temperature circuit range/performance check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. P04B8 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks a/c refrigerant temperature circuit range/performance with your car's computers to find out exactly what's prompting the light to turn on.

P04B8 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.

Common Causes of P04B8

A common cause of code P04B8 is the failure of A/C Refrigerant Temperature Circuit Range/Performance, but there are several other possible causes as well, such as ;

Clogged or faulty fuel injector (s)
Damaged ECM
Fuel tank leaking
Ignition coils circuit poor electrical connection

P04B8 code for all cars

You can view according P04B8 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P04B8 Lancia Alpha

+P04B8 Holden Caprice

+P04B8 Jowett Javelin

+P04B8 Nissan Nv400

+P04B8 Honda Acura Cl

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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