Audi DTC P1142 – Load Calculation Cross Check Lower Limit Exceeded
DTC P1142 meaning on Audi
The Diagnostic Trouble Code (DTC) P1142 for Audi indicates that the load calculation cross check lower limit has been exceeded. This means that the engine control module (ECM) has detected a discrepancy in the calculated load value compared to the expected lower limit.
Audi DTC P1142 symptoms
Symptoms of DTC P1142 on an Audi may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance or power
- Potential hesitation or stalling during acceleration
Audi DTC P1142 causes
Common causes of DTC P1142 on an Audi may include:
- Issues with the Mass Air Flow (MAF) sensor
- Vacuum leaks in the intake system
- Faulty oxygen sensor
- Problems with the fuel system
Audi DTC P1142 seriousness
While DTC P1142 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential long-term damage to the engine or emissions system. Ignoring the code could lead to decreased fuel efficiency and performance.
How to diagnose DTC P1142 on Audi
To diagnose DTC P1142 on an Audi, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the MAF sensor for dirt or damage
- Check for vacuum leaks in the intake system
- Test the oxygen sensor for proper function
- Examine the fuel system components for any issues
How to fix DTC P1142 on Audi
To fix DTC P1142 on an Audi, the following steps may be taken:
- Clean or replace the MAF sensor if necessary
- Repair any vacuum leaks in the intake system
- Replace a faulty oxygen sensor if detected
- Address any fuel system problems identified during diagnosis
- Clear the fault code and reset the ECM
How to erase DTC P1142 on Audi
To erase DTC P1142 on an Audi, the fault code can be cleared using a diagnostic scanner. After addressing and fixing the underlying issue that caused the code, the ECM can be reset to clear the code from the system. It is important to ensure that the repair has been successful before clearing the code to prevent it from reoccurring.
Recommended tools for Audi diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.