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P2141 is a diagnostic trouble code (DTC) for "Exhaust Gas Recirculation Throttle Control Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
Exhaust Gas Recirculation Throttle Control Circuit Low
P2141 is an OBD-II generic code for the engine control module (ECM) detecting the exhaust gas recirculation (EGR) control valve circuit is low. This typically indicates a short or an open circuit causing a low voltage return.
The engine control module (ECM) controls the EGR valve function with a control valve and monitors the feedback voltage from the valve for problems and sets code P2141 if the return voltage is below specifications.
The EGR control valve is shorted internally to ground.
The EGR control wiring or valve has an open circuit.
The Check Engine Light will be illuminated and the code is set in the ECM memory as a fault. The light will stay on unless the problem goes away for more than three running cycles.
The EGR may not operate and can cause the engine to ping or pre-detonate the fuel at the wrong time.
The vehicle surges or bucks on light acceleration.
Scans for codes and documents the code in the ECM, and then looks at the freeze frame data for failure
Checks the EGR valve control wiring and connection for loose or corroded connectors
Checks the control valve for shorted or open windings
Follows the manufacturer pinpoint tests for the diagnosis and replacement of the EGR control valve
Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired
Failing to clear the ECM codes after the codes are fixed
Replacing the EGR control valve without verifying the valve has a problem
Code P2141 is a code indicating the EGR system is inoperative and will cause the engine to have pre-ignition problems. This can lead to internal engine damage over time if the vehicle is continued to be driven with the problem happening.
Repairing the connector pins of corrosion or loose connections at the EGR control valve or the ECM
Replacing the ECM after the wiring short is corrected
Code P2141 is for a code that may be used on gas and diesel engines and may have different meanings for different manufacturers. Make sure to use the pinpoint tests for the manufacturer and code you have received. Some vehicles use the code as a signal for a throttle control problem, while others use it to signify an EGR control problem.
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