P0956 Mazda Rx8 OBD Code

OBD/2 P0956 error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

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.

P0956 Mazda Rx8 Error Code Repair Process :

If your p0956 auto shift manual mode circuit range/performance check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P0956 and engine control unit are in charge of monitoring a bunch of different p0956 auto shift manual mode circuit range/performance, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mazda Rx8 P0956 OBD2 Code

A common cause of code P0956 is the failure of P0956 Auto Shift Manual Mode Circuit Range/Performance, but there are several other possible causes as well, such as ;

Exhaust tube
Faulty starter motor
Fuel injector leaks
Faulty oil control valve (OCV)

P0956 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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P0956 Mazda Rx8 OBD Code

P0956 Mazda Rx8 Error Code Repair Process :

Common Causes of Mazda Rx8 P0956 OBD2 Code

P0956 code for other Mazda cars