P3321 Chevrolet Avalanche 2 OBD Code

OBD/2 P3321 error code description and symptoms.

Intake Manifold Runner Control Malfunction (Stuck Open) The IMRC system is monitored for failure during continuous, key ON engine OFF or key ON engine running self-test. The test fails when the signal on the monitor pin is less than an expected calibrated range at closed throttle. IMRC monitor signal circuit shorted to PWR GND or SIG RTN Damaged IMRC actuator Damaged PCM An IMRCM PID reading approximately near 1 volt at closed throttle may indicate a fault.

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.

P3321 Chevrolet Avalanche 2 Error Code Repair Process :

The scent may P3321 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such P3321, so if the inside of your car powertrain performance mode switch circuit failure as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Chevrolet Avalanche 2 P3321 OBD2 Code

A common cause of code P3321 is the failure of Powertrain Performance Mode Switch Circuit failure, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
EVAP canister or fuel tank leaks
Insufficient cylinders compression
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection

P3321 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.

About Us | Contact | Privacy

P3321 Chevrolet Avalanche 2 OBD Code

P3321 Chevrolet Avalanche 2 Error Code Repair Process :

Common Causes of Chevrolet Avalanche 2 P3321 OBD2 Code

P3321 code for other Chevrolet cars