P1986 Suzuki Alto Works OBD Code

OBD/2 P1986 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.

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.

P1986 Suzuki Alto Works Error Code Repair Process :

For exhaust gas recirculation sensor a circuit high 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. P1986 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 exhaust gas recirculation sensor a circuit high with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Suzuki Alto Works P1986 OBD2 Code

A common cause of code P1986 is the failure of Exhaust Gas Recirculation Sensor A Circuit High, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Exhaust gas leaks
Faulty Fuel injector
Ignition coils circuit poor electrical connection

P1986 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.

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

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P1986 Suzuki Alto Works OBD Code

P1986 Suzuki Alto Works Error Code Repair Process :

Common Causes of Suzuki Alto Works P1986 OBD2 Code

P1986 code for other Suzuki cars