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As a mechanic and multiple Range Rover owner, I’ve experienced my fair share of problems with these luxurious SUVs.
One common issue that Range Rover drivers face is the failure of the Mass Airflow Sensor or MAF.
So, if you’re wondering when to replace your Range Rover’s MAF, you’ve come to the right place.
What models are affected?
- Land Rover Defender
- Range Rover Discovery
- Range Rover Evoque
- Range Rover Sport
- Range Rover Velar
- Range Rover Vogue
When to replace
As a concise and NLP-friendly answer, you should replace your Range Rover’s Mass Airflow Sensor once every 100,000 miles.
Signs and symptoms it’s time for a replacement
But, how do you know when it’s time for a replacement? Here are some common signs and symptoms to look out for:
- Rough idling or stalling
- Poor acceleration and engine performance
- Engine misfires or hesitations
- Decreased fuel efficiency
- Illuminated check engine light
List of related OBD codes
If you’re experiencing any of the above symptoms, you may see one or more OBD codes related to your MAF. Here are some relevant codes to look out for:
- P0171- System Too Lean Bank 1
- P0174- System Too Lean Bank 2
- P0172- System Too Rich Bank 1
- P0175- System Too Rich Bank 2
- P0101- Mass or Volume Air Flow Circuit Range/Performance Problem
- P0102- Mass or Volume Air Flow Circuit Low Input
What can happen if not replaced
If you fail to replace your MAF on time, it can lead to multiple issues. Here are some possible consequences of not replacing your MAF:
- Reduced power and acceleration
- Increased emissions
- Engine damage
- Ignition system problems
- Transmission issues
Can it be replaced without a mechanic?
Yes, it is possible to replace the MAF without a mechanic. It’s a relatively simple process that can be done with the use of some basic tools and a replacement part.
Parts you’ll need to replace it
- Replacement Mass Airflow Sensor
- Electronic Cleaner or MAF Cleaner
Tools you’ll need to replace it
- Socket set
- Electronic cleaner or MAF cleaner
How to replace it
- Locate your MAF sensor in the air intake duct, which could be situated between the air filter box and the throttle body or on the throttle body itself.
- Carefully unplug the electrical connector from the MAF sensor.
- Loosen and remove the screws or clamps that attach the MAF sensor to the air intake duct.
- Carefully remove the MAF sensor from the duct, ensuring no debris gets into the engine.
- Using an electronic cleaner or MAF cleaner, clean the two small wires inside the sensor’s housing. Be gentle and do not touch the wires with any object to avoid damaging them.
- Dry the MAF sensor after cleaning and let it sit for some time.
- Reinstall the MAF sensor into the air intake duct and tighten the screws or clamps that hold it in place.
- Plug the electrical connector into the MAF sensor.
- Start the engine and ensure that there are no warning lights or issues with engine performance.
How much does it cost to replace a MAF sensor?
The cost of replacing a Range Rover’s Mass Airflow Sensor varies depending on the type of vehicle and the location of the repair. On average, the cost ranges from $150 to $350.
Can a faulty MAF sensor cause transmission problems?
While a faulty MAF sensor doesn’t directly cause transmission issues, its failure can lead to sluggish engine performance and reduced power output. This can ultimately affect the transmission, leading to transmission problems down the line.
Can I clean my MAF sensor instead of replacing it?
In most cases, it’s more effective to replace your MAF sensor instead of cleaning it, as cleaning can sometimes lead to damage. However, if you notice mild symptoms, you can try cleaning your MAF sensor before going for a replacement.
Last updated and verified on 4th September 2023