B2940 Trouble Code

View B2940 obd/2 error code description and symptoms. B2940 engine photo

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.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

B2940 Error Code Repair Process :

If your vehicle failed a B2940 test and the B2940 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses purge flow sensor circuit high input a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look purge flow sensor circuit high input: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

B2940 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.

Common Causes of B2940

A common cause of code B2940 is the failure of Purge Flow Sensor Circuit High Input, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
Erratic camshaft position due to low oil pressure
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Faulty variable valve timing (VVT)

B2940 code for all cars

You can view according B2940 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B2940 Rover Mini

+B2940 Fiat 10-12

+B2940 Adler 1-litre

+B2940 Mercedes Sl 300

+B2940 Asl Garaiya

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

About Us | Contact | Privacy