25 used & new from CRC 05110 Mass Air Flow Sensor Cleaner - 11 Wt Oz.DetailsCRC 05078 Throttle Body and Air-Intake Cleaner - 12 Wt Oz. Sea Foam SF-16 Motor Treatment - 16 oz. FREE Shipping on orders over $49. 2.6 x 2.6 x 7.8 inches #9,857 in Automotive (See top 100) #4 in Automotive > Motorcycle & ATV > Fluids & Maintenance > Cleaners > Carburetor & Throttle Body Cleaners #724 in Automotive > Oils & Fluids Item can be shipped within U.S. See all 191 customer reviews See all 191 customer reviews (newest first) I over oiled a K&N filter and got a check engine light. I followed the directions on the can and cleaned the sensor. No more check engine light. this helped for a while but i eventually replaced the mass airflow sensor. but it helped when i needed it Cleaned the sensor with easy. It's almost like an air duster.better than driving to auto parts stores to find that they do not have it and / or is so expensive. Its ok, followed the directions to a tee, one this to note is you might have to drive about 500 miles before the computers can adjust properly, If you fry your MAF sensor your...

My 1995 Audi 90S would stall at idle and was hesitant to accelerate. After taking out the air flow sensor and cleaning it all these problems went away. Got a 100,000 Ford Ranger junk yard engine because the original was destroyed by losing coolant and overheated. I don’t typically write reviews of products, but felt compelled to on this one. My 1999 Ford Taurus with the 3. great product, Fast shipping 11 oz net weight - 12/Case Mass Air Flow Sensor Cleaner Use Zep Mass Air Flow Sensor Cleaner every time your air filter is replaced to increase your car’s gas mileage and horse power while reducing emissions. Your Mass Air Flow Sensor keeps your air/fuel ratio balanced at 14.7:1. If your check engine light is on, it can be a sign that your Mass Air Flow Sensor is dirty. Use our Mass Air Flow Sensor Cleaner to prevent unnecessary repairs and costs. Maintains proper air/fuel ratio Directions & Pro Tips+ Turn the engine off and locate the MAF sensor, generally a small device located in the fresh air tube just behind the air filter.

Remove the retaining screws and pull the sensor from the air duct. Use a shop towel to absorb any excess fluid. Spray the sensor for about 5-7 seconds to clean it. Do not use any brushes or tools to clean the sensor. Let the sensor dry briefly. Reinstall it and start the engine. RECOMMENDATION: Clean the MAF sensor each time the air filter is replaced. Vapors from this product may travel or be moved by air currents and ignited by pilot lights, other flames, smoking, sparks, heaters, electrical equipment, static discharge, or other ignition sources at locations distant from point of product use. water air purifier and freshenerAdequate ventilation must be provided during use. air duct cleaning mountain viewWaste oil contaminated with this product poses a flammability hazard.all seasons air duct cleaning reviews

SDS - 11 net oz Penray Mass Air Flow Sensor Cleaner helps restore fuel economy. It safely clean mass air flow sensors without harming delicate equipment. In addition the product will: • Re-establishes correct air/fuel ratio • Reduces rough idle and hesitation • Safe for plastic and delicate equipment • Leaves no residueThe Benefits of Cleaning Your Mass Air Flow SensorThe more oil and dirt that accumulates on your MAF, the worse it serves its purpose. The dirtier it gets, the less accurate the reading it sends to your ECU (computer). These readings can cause lower gas mileage and a small loss of power. Cleaning your MAF will not only extend the life of the sensor, but it will also help keep the power level and gas mileage where they should be. So if you feel a lack of power when you hit the gas, or have noticed a change in your miles per gallon, the MAF sensor is the best place to start on your Volkswagen or Audi. Parts and Labor Cost from the Dealership

A new MAF sensor from the dealership can cost anywhere between $80 and $150, depending on your car's make and model. The labor cost will add on another $150, as VW/Audi estimates the labor time needed as an hour and a half. Recently, my new GTI needed a new MAF for emissions, as the old sensor was completely dead from the previous owner running the car with no air filter. I bought a new one on eBay for $40 that even came with a 90-day warranty; it has been six months and I've yet to have a problem with it. So if you're willing to trust an eBay product, that is also an option. Doing this job as a beginner will take you around 30 minutes if you are replacing the MAF sensor, or around two hours (including drying time) if you decide to clean the sensor and put it back in. No special tools are needed for the job. It is very straightforward and easy enough for anyone to accomplish. So why throw away $300 instead of doing thirty minutes of work? Testing Your MAF SensorIf you are already showing a "check engine" light on your dash, or you think you are feeling the symptoms of a bad MAF, here is an easy way to check the problem.

Unplug the MAF harnessIf you unplug your MAF and your car all of a sudden perks up, then the MAF is more than likely the problem, and cleaning the sensor is a great place to start. Warning: If your check engine light is not already lit up when you try this test, unplugging the MAF sensor will cause it to illuminate. You can easily reset the light by unplugging the negative terminal on the battery for ten seconds (which is what I would suggest), or driving for sixty miles so the car can cycle. If your check engine light is already on, then this is a great test to try, but before you try it, head to your local auto store and get a free scan. If they tell you that it is an oxygen (02) sensor, than do this MAF test anyway, because an OBDII scanner can give false codes on VW/Audi and this test is a simple way to eliminate other causes for your check engine light. Tools and Parts for the Job Vise grip or pliers 91% isopropyl alcohol (rubbing alcohol), or MAF cleaner

2 trim replacement screws The tools needed for this job are very simple. You should have most of them in your garage or tool drawer. One tool that I have not listed is a specialty "tamper proof" five-star Torx bit made by and for VW/Audi. I've not listed it for three reasons. 1) This tool is incredibly hard to find, so it is not worth the price or hassle of ordering it from a VW/Audi dealership. 2) The screws involved can be replaced with Philips-head screws for future convenience. 3) These screws can be removed with pliers and once they're out you'll never have to deal with them again! NOTE: Some MAFs use a 6-point tamperproof screw. If that is the case you can easily find a bit or screwdriver for those screws at any hardware or auto store for cheap. The chemical that is used to clean the MAF sensor is completely up to you. There is a large variety to choose from at your local auto parts store, or you can use rubbing alcohol from the grocery store for about a dollar.

I always use rubbing alcohol and have never had a problem. It cleans, dries quick, and is cheap. So for the cleaning part of this DIY, I will be using common 91% isopropyl alcohol. Screws to replace the 5-point Audi Torx screws can be bought at any auto shop. I purchased a small pack of #10 trim screws from AutoZone for $2.29; they look just like the stock screws but with a Phillips-head tip. Another option is to just re-use the 5-star screws and put them back in the same way you took them out. How to Remove the MAF Sensor and/or Housing1. Unclip the harness connected to the middle of the MAF. The clip can be removed using your thumbnail. If it won't pop up, try a small screwdriver. Be gentle so you don't break the clip. Once you hear the clip pop, wiggle the harness off of the MAF. (All of the harnesses use the same type of clip, so once you learn how to release one, you can use that technique for coils or any other harness that needs to be taken off for repair. Here's how to replace a VW/Audi harness clip if you break it.)

2. Here you have a choice: you can either remove the sensor from the housing or remove the housing and sensor as a unit. If you still need to remove the 5-point tamperproof screws, I recommend removing the whole unit. Next you will need to remove the two Phillips-head screws connecting the MAF to the air box (on the right side of the MAF). Once those screws are out, disconnect the other side of the MAF from the turbo inlet pipe. Most VWs and Audis use pinch hose clamps, so use your pliers to squeeze the clamp open and slide off the inlet pipe. When putting the MAF back on, you can use a screw-type hose clamp to save yourself some hassle next time. 3. If you are choosing to remove the sensor only (which I recommend if you have regular 6-point Torx screws): Unscrew the two bolts in front of and behind the harness plug. Gently wiggle the sensor out of the housing. Skip down to step 6. 4. Once the housing unit is free, take your vise grips or pliers and pinch the sides of the screw connecting the sensor to the housing.

(It can be a pain in the a**, but once you're done and replace those bolts you will never have to do it again). Grip it, turn counter-clockwise, re-grip it, and repeat till both screws are out. 5. The sensor is in nice and tight so wiggle it out of the housing. 6. Once you wiggle the sensor out, put it in your ziplock bag and grab a beer. The hard part is over (if you even want to call that hard!). 7. Fill that bag with rubbing alcohol and shake, shake, shake! If you are dealing with the sensor by itself, and not the housing, you can use a smaller bag with less alcohol, and use q-tips to clean off any left on residue. That's why I recommend taking the sensor out of the housing. 8. Once you're satisfied the sensor's clean, allow the parts to completely dry before re-installing and starting your car. 9. If you were dealing with the 5-point Torx screws, you can put the housing back in using the same method of using pliers on the sides of the screws, or you can replace the screws with the trim screws I mentioned above.

Volkswagen and Audi MAF Part Numbers If you can add to my list, or have any corrections, please post a comment or send me an email. K&N Filters, CAIs, Short Rams, and MAF'SThis is always a huge debate. Do K&N filters ruin mass air flow sensors? In my opinion yes and no. An over-oiled K&N filter will definitely coat, and in the long run ruin, your MAF sensor, costing you a $100-$200 part. But a lightly-oiled K&N filter lets more air travel through your engine while still trapping dust and dirt particles, with no harm at all to your MAF. I have used K&N filters in stock air boxes, short ram air intakes, and regular cold air intakes (CAIs) and I have never had a problem with them ruining an MAF sensor. To avoid problems, take one simple step: clean your MAF every 5-10 thousand miles. That preventative maintenance should be done no matter what type of filter you are using, oil or paper. More by this AuthorDIY Auto RepairReplacement of Oxygen (O2) Sensor: 2.0L Jetta/Golf GTI/VW MKIVHere is a way to take the cheap Bosch oxygen sensor #15718, made for Ford cars, and use it on your 2.0 L Volkswagen engine.