Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer found a problem with how the gas pedal and the engine's airflow sensor are working together. It's like when two friends are supposed to work together, but they're not doing it right.
This code indicates a discrepancy between the readings of the Throttle Position Sensor (TPS) and the Hot Film Air Mass Meter (HFM) on Bank 1, suggesting they are not in sync.
The P1141 code is triggered when the Engine Control Module (ECM) detects a mismatch between the expected values from the Throttle Position Sensor and the Hot Film Air Mass Meter on Bank 1. This could indicate a fault in either sensor or a wiring issue.
• Check Engine Light is on
• Poor engine performance
• Reduced fuel efficiency
• Faulty Throttle Position Sensor
• Defective Hot Film Air Mass Meter
• Wiring or connector issues
Throttle Position Sensor: A sensor that monitors the position of the throttle in an internal combustion engine.
Hot Film Air Mass Meter: A device that measures the amount of air entering the engine for optimal fuel injection.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors of the TPS and HFM.
• Test the TPS and HFM for proper operation.
• Replace the Throttle Position Sensor if faulty.
• Replace the Hot Film Air Mass Meter if defective.
• Repair or replace damaged wiring or connectors.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• BMW 3 Series
• Mercedes-Benz C-Class
• Audi A4
• Regularly inspect sensors and wiring.
• Keep the air intake system clean.
• Perform routine vehicle maintenance.
Sensor Issue
• Have a professional diagnose the issue.
• Avoid driving extensively until repaired.
Check with your vehicle manufacturer or dealership for warranty coverage on sensors.
This code has been associated with sensor alignment issues in European vehicles, particularly in models with advanced engine management systems.
Moderate – It is advisable to address this issue soon to avoid potential engine performance problems.
Ignoring this code may lead to increased emissions and reduced fuel efficiency, which could be subject to regulations.
• Engine at operating temperature
• Vehicle in idle or low-speed conditions
The Throttle Position Sensor is typically located on the throttle body, while the Hot Film Air Mass Meter is found in the air intake system.
Q: Can I drive with a P1141 code?
A: It's possible, but not recommended as it may lead to poor performance and increased fuel consumption.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.
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