B0148 Trouble Code

View B0148 obd/2 error code description and symptoms. B0148 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.

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.

B0148 Error Code Repair Process :

The rule of B0148 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of knock sensor 2 circuit low input (bank 2). Likewise, overriding the OBD B0148 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

B0148 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Common Causes of B0148

A common cause of code B0148 is the failure of Knock Sensor 2 Circuit Low Input (Bank 2), but there are several other possible causes as well, such as ;

Clogged or faulty fuel injector (s)
Damaged VCT phaser
Exhaust gas leaks
Faulty front heated oxygen sensor

B0148 code for all cars

You can view according B0148 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B0148 Lancia Ypsilon

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

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