Please Select Username to appear on public areas of the site like community and recipe comments.Displaying reviews 1-10Previous | Next »It does the job. Was this a gift?:NoComment on this reviewI would buy this product again. ProsWorks As AdvertisedConsNoneBest UsesWas this a gift?:NoComment on this reviewdo it yourself ProsCan Withstand UseEasy To UseReliableConsBest UsesAutomotive Repair ShopUpkeepComment on this reviewI would definitely buy this product again Comment on this reviewThank you CRC ProsEasy To UseReliableConsBest UsesAutomotive Repair ShopHome GarageUpkeepComment on this reviewGood Service & Good product ProsReliableConsBest UsesAutomotive Repair ShopHome GarageNoneComment on this reviewWorked great ProsEasy To UseConsBest UsesHome GarageComment on this reviewmade my '99 Ranger run likw a different vehicle !!! ProsCan Withstand UseCompact DesignEasy To UseReliableConsThere Are NoneBest UsesAutomotive Repair ShopGreat Maintainence ProducHome GarageUpkeepComment on this reviewGood Stuff ProsEasy To UseMakes A DifferenceConsNoneBest UsesAutomotive Repair ShopElectronic EquipmentComment on this review(1 of 1 customers found this review helpful)Something in a can that really works ProsEasy To UseConsNoneBest UsesUpkeepComment on this reviewDisplaying reviews 1-10Back to topPrevious |

Most modern EFI engines have a Mass Air Flow (MAF) sensor located in the air intake of the engine. This is the device that measures how much air is coming into the engine so that the computer can determine how much fuel it needs to inject. air purifier made me sickWhile the MAF sensor does not directly measure the actual flow rate of air, it measures the density. national air duct cleaning associationAir density changes with temperature, altitude and forced induction (supercharger/turbo applications), making density more important than air volume flow rate.air conditioner cleaning kit india There are two main types MAF sensors- hot wire and cold wire. A hot wire MAF sensor uses a platinum wire located in the path of air flow, which is heated using specific voltage.

As the air passes over the hot wire, it is cooled, decreasing the wire’s resistance to voltage. The engine control module (ECM) measures this change and alters the tune accordingly. The other type is a cold wire sensor. These are commonly found in GM engines. These sensors use both a hot wire and a cold wire, where the cold wire functions as a reference for the hot wire. Because these sensors are directly exposed to the air, they pick up contaminants that alter their readings, which lead to rough running conditions. You can’t use carburetor or brake cleaners on a MAF sensor, as the chemicals in those cleaners can destroy the delicate sensors. Instead, a special MAF sensor cleaner is required. CRC MAF Sensor Cleaner is specifically designed to remove oil, dirt, fibers and dust from the sensor without damage. The chemicals used are hexane-based, which evaporate quickly without the use of alcohol. A clean MAF sensor is a happy MAF sensor. The process is quite simple and can be completed in about 10 minutes.

First, NEVER use MAF cleaner with the engine running or even with the key in the run position. This can cause major damage to the sensor. With the key off, unplug the sensor. Next, remove the air intake tubing and then remove the MAF sensor. Place the MAF sensor on a towel to catch the runoff.  Insert the plastic straw into the nozzle on the can and spray the interior of the housing with 10-15 blasts. You need to cover the hot wire(s) and plate. Be very careful to not touch the wires with any object, including the straw. The wires are quite delicate. Spray all sides of the sensor and housing, including the connectors. Reinstall the sensor into the car and allow a few minutes for the chemicals to evaporate before starting the engine. It is a good idea to clean the MAF sensor every time you change or clean the air filter. A clean MAF sensor can restore 4-10 horsepower to the wheels, which is a significant number for  just cleaning a sensor. Do not use MAF sensor cleaners on Karman-Vortex style air flow sensors, which are found in Toyota Supra turbos, Mitsubishi, and most Lexus engines.

If you have any concerns about performing this task yourself be sure to contact your local NAPA Auto Parts Store or NAPA AutoCare Center.AVAILABLE FOR PAY & PICK UP AVAILABLE FOR IN-STORE PURCHASE ONLY THIS PRODUCT IS DISCONTINUED CRC SensorKleen Mass Air Flow Sensor Cleaner dissolves dirt, grease and fluxWill not harm sensitive electronics or plasticsImproves the air to fuel ratio of your vehicle Here's what others had to say... Date - Newest First Date - Oldest First Rating - High to Low Rating - Low to High Helpfulness - High to Low Helpfulness - Low to HighA mass airflow sensor (MAS) determines the mass of air entering a vehicle's fuel injection engine, and passes that data to the Engine Control Unit, or ECU. The air mass information is necessary for the ECU to correctly balance and deliver the correct amount of fuel to the engine. When a vehicle's mass airflow sensor is faulty or defective it can cause a variety of problems, and usually results in very poor performance from your engine.

Symptoms of a Faulty Mass Air Flow Sensor A faulty mass airflow sensor will cause problems similar to low compression or low vacuum, and will also show symptoms similar to when your vehicle has low fuel pressure from a faulty fuel pump. Here are some of the most common symptoms of a faulty mass airflow sensor: If you believe your car has a faulty mass air flow sensor, take it to a qualified mechanic so that a complete computer diagnostic can be run. In most cases, a faulty mass flow sensor has a specific code that will generate during computer diagnostics, and is usually easy to determine with computer testing equipment. Generally, you'll want to clean your mass airflow sensor either every six months, or every time you change your oil. Cleaning it when you change or clean your air filter will be a good way to save both time and money. To clean your mass airflow sensor, first, you must take it out. This is done by opening your vehicle's air box and using a flathead screwdriver to pluck it out.

When removing the sensor, be sure to never touch the wires. A disconnected mass airflow sensor can't electrocute you, but the wires are delicate and small. Breaking one will require a replacement, which can run upwards of $100, so it's best to be cautious. Next, you have two choices. The cheapest option would be to take your mass airflow sensor and place it in a plastic bag filled with rubbing alcohol. Take the bag and move it around, making sure the alcohol washes all of the dirt and grime from the sensor. Another option would be to go to your local auto parts store and buy a special mass airflow sensor cleaner, and spray it onto your sensor, but as stated before, this is more expensive. Dry and Reinstall the Sensor After cleaning your mass airflow sensor with either the cleaner, or rubbing alcohol, let it sit, generally for 20 minutes or more. The sensor has to be completely dry before it can be reinstalled in your car, otherwise you may damage it. Replace it and that's all.