B0171 Mazda 929 OBD Code

OBD/2 B0171 error code description and symptoms.

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

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.

B0171 Mazda 929 Error Code Repair Process :

For timing reference high resolution signal a too many pulses 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. B0171 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 timing reference high resolution signal a too many pulses with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Mazda 929 B0171 OBD2 Code

A common cause of code B0171 is the failure of Timing Reference High Resolution Signal A Too Many Pulses, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Damaged ECM
Faulty starter motor
Open VPWR circuit

B0171 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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B0171 Mazda 929 OBD Code

B0171 Mazda 929 Error Code Repair Process :

Common Causes of Mazda 929 B0171 OBD2 Code

B0171 code for other Mazda cars