4 Fixes for a P1101 on a Chevy Cruze

By | September 14, 2021

How To Fix P1101 Chevy Cruze

A P1101 error code is a common problem with Chevy Cruze with several fixes.

When the Chevy Cruze first starts up, the mass airflow sensor does a self-diagnostic test. If the results are out of range, a P1101 error code is given.
P1101 Chevy Cruze
Some scan tools will give the error as an Intake Air Flow system Performance.

What is a P1101 on a Chevy Cruze?
What is a P1101 on a Chevy Cruze
A P1101 on a Chevy Cruze is a Mass air flow (MAF) Sensor out of self-test range.

P1101 Symptoms

  • Engine Light On
  • Rough Idle
  • Shaky engine
  • Low Power

An engine with a P1101 code will idle rough, have an engine light on and the engine is likely shaky.

Other codes that often appear also are P0101, P0299, P0171, and P0106.

4 Fixes for a P1101 on a Chevy Cruze

  • Fix #1: Throttle Body
  • Throttle Body P1101
    A throttle body not working properly can cause a P1101.

    It is located to the back of the engine up against the firewall.
    Throttle Body P1101 Clean
    Check and clean the throttle body if it is dirty.

    Throttle body cleaner can be used to remove any debris that may be causing issues.

    Example Throttle Body and Air-Intake Cleaner on Amazon
    CRC 05078 Throttle Body and Air-Intake Cleaner – 12 Wt Oz.

  • Fix #2: Vacuum Leak
  • A vacuum leak can cause a P1101 error and the vehicle should be checked for a leak.

    A large vacuum leak will often have a whooshing noise that can be easily located.

    Smaller leaks can be harder to locate and a spray bottle is often used to see if the idle changes when the leak is sprayed.

    Here is an example of a PVC valve that when bad on a Chevy Cruze causing a P1101 error code.
    P1101 Chevy Cruze Vacuum Leak
    The PVC valve had gone bad causing a vacuum leak and making a hissing noise.

  • Fix #3: Mass Airflow Sensor
  • Mass Airflow Sensor P1101
    A bad mass airflow sensor can cause a P1101 error code.

    The mass airflow sensor is located on the air intake filter box and is easy to replace.

    Often it can be cleaned first to see if the error clears.

    Example Mass Airflow Sensor on Amazon
    LSAILON MAF Mass Air Flow Sensor Meter Fit for Chevy Cruze 2012 2011,for Chevy Volt 2011-2015,for Chevy Orlando 2012-2014,for Chevy Sonic 2012,for Cadillac ELR 2014-2015,1.8L,1.4L,213-4686

  • Fix #4: Transmission Intercooler Boot
  • Transmission Intercooler Boot
    The transmission intercooler boot is located underneath the front bumper on the driver’s side of the car.

    It can be a pain to get to as the front bumper needs to be removed to reach it.

    The boot has a clip the holds it in place, and if it comes, loose will often give a P1101 error code.

    Oil and other debris that get inside will feed into the system, causing problems.

A P1101 error code on a Chevy Cruze can be found by looking for a problem in the intake.

Often the throttle body is dirty, causing it not to work correctly.

If the throttle body is dirty, it can be cleaned, which sometimes clears the error.

A vacuum leak can also cause a problem that can sometimes be difficult to find.

If the leak is large, it is much easier to find as it is usually noisy.

Small leaks are more challenging and are usually found with a spray bottle which, when sprayed on the leak causing the idle to change.

Evap smoke machines are used to find a difficult to locate leak.

The Mass Airflow Sensor can also cause problems and be replaced if bad.

Have you has issues with a P1101 on a Chevy Cruze? Let us know your thoughts below.



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