If you are concerned your MAF sensors may be functioning properly, State Street Auto Repair can examine them and determine if they need to be cleaned or replaced.2010 chevy equinox oil recall. It’s important to get proper readings from the MAF so that the ECU can do its job maintaining the correct ratio. However, it's also a good idea to have a mechanic check your vehicle for damage. Note: Some MAF sensors also incorporate an air temperature sensor, which. This could happen while speeding up on the highway on-ramp or cruising down a city street. The PCM detects that the actual MAF sensor frequency signal is not performing within the normal expected range of the calculated MAF value. 3 Symptoms of a Bad Mass Air Flow Sensor 1 Your Car Hesitates or Suddenly Jerks Forward While Accelerating A bad MAF sensor can cause your vehicle to experience poor drivability issues such as engine stalling, jerking or hesitation during acceleration.
#HHR MASS AIR FLOW SENSOR PROBLEMS CODE#
With many MAF sensor problems, the solution may be as simple as cleaning the wires. This P0102 diagnostic trouble code (DTC) means that there is a low condition detected in the Mass Air Flow (MAF) sensor or circuit. This time underestimating the amount of airflow instead of overestimating it.Īlthough this will temporarily improve your fuel efficiency, running lean for too long can seriously damage your vehicle.
#HHR MASS AIR FLOW SENSOR PROBLEMS HOW TO#
Similar to running rich, the MAF sensor is sending inaccurate information to the PCM. How To Tell If You Have a 2006 Chevrolet HHR Faulty Mass Airflow Sensor The engine is very hard to start or turn over The engine stalls shortly after starting. Also, if the computer isn’t the issue, then it means one of the other sensors is probably off if the car isn’t able to. It isn’t able to use the tables programmed in it to guess the amount of fuel needed. “Running lean” - the opposite of running rich - means your vehicle has too little fuel and too much air in each combustion chamber. If the car dies when you disconnect the mass airflow sensor, then that means it was working right and that your computer has issues. Most of the time, the problem can be fixed by cleaning the MAF sensor's wires. When it overestimates the airflow, the PCM releases too much fuel. If you see your car misfiring, Idling rough, or. It can't measure airflow accurately, therefore sending incorrect information to the PCM. Unstable Engine Idle: Faulty position sensors can cause sporadic idle conditions due to fluctuating airflow. These issues can happen when the MAF sensor is damaged or when its wires are coated with dirt. Signs that your vehicle is running rich include: “Running rich”means there is too much fuel and not enough air in each combustion cylinder. If you experience any of these symptoms you should examine your vehicle as soon as possible. These issues can create dangerous situations causing accidents and injury. You’ll experience this as poor drivability such as hesitations or sudden jerking motions, particularly during acceleration. Stalling, jerking, or hesitation during accelerationĪ bad MAF sensor can cause too much fuel to be left in the combustion chamber, creating untimed detonations. If your tuning is still using the MAF limiting tables the resulting lower-than-actual airflow reading will seriously hinder performance. There are 3 key signs that may indicate it’s time to examine your MAF sensor. First off, The efects could be very noticeable, especially if the sensor is close to the compressor where there is alot of turbulence. This causes the engine computer to miscalculate the amount of injected fuel, causing additional damage to your engine. A contaminated or failed mass air flow sensor cannot measure the amount of air flow correctly. Make sure you only pull on the connector and not the wires. While pulling the connector, squeeze the tab on either side of the harness. The mass air flow (MAF) sensor, part of your vehicle’s electronic fuel injection system, is responsible for calculating the total amount of air entering the engine. Disconnect the mass airflow sensor from the electrical connector.