P0836 Diagnostic Trouble Code

P0836 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P0836 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
Hesitation upon acceleration

Possible Causes :

Some aftermarket accessories and performance modifications
A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code P0836 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P0836.

Fortunately, P0836 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0836 Trouble Code For Specific Cars

P0836 Renault Twingo HO2S Heater Control Circuit High (Bank 2 Sensor 2)
P0836 Kaiser Darrin Seat Headrest Motor Stalled
P0836 Ferrari 553 Intake Manifold Runner Control Circuit Malfunction
P0836 Suzuki Alto Vii Memory 1 Switch Circuit Short To Battery
P0836 Mercedes Citan ABS Inlet Valve Coil Rear Circuit Short To Battery
P0836 Infiniti Qx4
P0836 Matra M530 Transmission Neutral Safety Switch Open Circuit