B0177 Nissan Alpha OBD Code

OBD/2 B0177 error code description and symptoms.

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 the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

B0177 Nissan Alpha Error Code Repair Process :

OBD B0177 code and tailpipe testing are two different approaches to identify vehicles in need of repair. The OBD system looks for broken or malfunctioning emissions control components and timing reference high resolution signal b too few pulses, while tailpipe tests sample a vehicle's exhaust to see if it is above or below certain prescribed limits. Given the robust nature of today's emissions control components, it is entirely possible for an individual component to B0177 malfunction without leading to an immediate increase in emissions at the tailpipe. In such cases, other components (like the catalyst) can temporarily compensate for the part that is broken however, these other components can only do double duty for so long before they, too, begin to malfunction. In addition, OBD also monitors for B0177 and other malfunctions in the fuel system problems that traditional tailpipe tests were not designed to identify. Most state and local areas also include a gas cap pressure test as part of an emission inspection.

Common Causes of Nissan Alpha B0177 OBD2 Code

A common cause of code B0177 is the failure of Timing Reference High Resolution Signal B Too Few Pulses, but there are several other possible causes as well, such as ;

Clogged or faulty fuel injector (s)
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Ignition coils harness is open or shorted
Faulty TCM or TCM programming

B0177 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.

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

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B0177 Nissan Alpha OBD Code

B0177 Nissan Alpha Error Code Repair Process :

Common Causes of Nissan Alpha B0177 OBD2 Code

B0177 code for other Nissan cars