Cold Wire Mass Air Flow Sensors

A: Sorry, this CRC Mass Air Flow Sensor Cleaner, 11 oz. (Part No. 05110) does not work fine on your 2008 Toyota Rav4.

Partlex 06A906461D OEM Quality Mass Air Flow Sensor Meter VW Jetta Audi TT 1.8T 0280218032

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  • TAG : How To Clean a Mass Air Flow Sensor (MAF) - YouTube
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  • The problem is most of the time husbands don’t do it or the wife don’t tell the husband about the dirty filter. A mass air flow sensor is used to find out the of entering a . The air mass information is necessary for the (ECU) to balance and deliver the correct fuel mass to the engine. It’s hard to give a specific time or mileage figure because the life of the filter depends on how much crud it ingests. A Good filter

    A: Hi Maria, I'm glad to assist you! This product is not specifically made for your vehicle. The product specifically designed with advanced Cozol technology to clean mass air flow sensors. It will increase horsepower and improves the air / fuel ratio and MPG.

  • A: Hi Dogg, I'm glad to assist you! This CRC Mass Air Flow Sensor Cleaner, 11 oz. (Part No. 05110) is not specifically made for your vehicle. The product specifically designed with advanced Cozol technology to clean mass air flow sensors. It will increase horsepower and improves the air / fuel ratio and MPG.

    A determines the mass of air flowing into the engine’s air intake system. The of the hot wire mass airflow sensor is similar to that of the (which determines air velocity). This is achieved by heating a wire suspended in the engine’s air stream, like a toaster wire, with either a over the wire or a through the wire. The wire's increases as the wire’s temperature increases, which varies the flowing through the circuit, according to . When air flows past the wire, the wire cools, decreasing its resistance, which in turn allows more current to flow through the circuit, since the supply voltage is a constant. As more current flows, the wire’s temperature increases until the resistance reaches equilibrium again. The current increase or decrease is proportional to the mass of air flowing past the wire. The integrated electronic circuit converts the proportional measurement into a calibrated signal which is sent to the ECU.

    Paul in KY Comments: Ok got my MAf today in the mail FINALLY. I got out, take apart all the covers, take out the old one, install the new one and BAM! revving bad like it is starving for fuel. Like how a bad MAF actually sounds. Did not figure out the arrow until I was done stupid me. So I put it in the other way thinking it was in wrong. Again really bad running. SO I put in the old one and we are running fine again. Normal revs, normal acceleration, just like before. Questions:
    1. IF the MAF is bad, I would assume that the revs would in fact be terrible correct?
    2. IF the MAF had a bad plug would I be safe in assuming that the revs would, again be bad.
    3. Can the O-ring affect how it "revs"? In other words the O-ring on the new one looks to be really flimsy and not quite the same size. Would I get a bad seal, thus producing the bad running bad revving?
    4. IF the O-ring is in fact part of the problem, should I just switch them out and see what happens? OR
    5. Should I just clean the old MAF and see if I get a CEL again? Thoughts?
    July 18, 2015
      Followup from the Pelican Staff: 1. Could be.

    2. Sure. has to work electrically.

    3. Yes, if it doesn't seal well, you will have unmetered air.

    4. Worth a try.

    5. Cleaning a hot film mass air flow sensor can ruin it.- Nick at Pelican Parts
     

  • Paul in KY Comments: Ok got my MAf today in the mail FINALLY. I got out, take apart all the covers, take out the old one, install the new one and BAM! revving bad like it is starving for fuel. Like how a bad MAF actually sounds. Did not figure out the arrow until I was done stupid me. So I put it in the other way thinking it was in wrong. Again really bad running. SO I put in the old one and we are running fine again. Normal revs, normal acceleration, just like before. Questions:
    1. IF the MAF is bad, I would assume that the revs would in fact be terrible correct?
    2. IF the MAF had a bad plug would I be safe in assuming that the revs would, again be bad.
    3. Can the O-ring affect how it "revs"? In other words the O-ring on the new one looks to be really flimsy and not quite the same size. Would I get a bad seal, thus producing the bad running bad revving?
    4. IF the O-ring is in fact part of the problem, should I just switch them out and see what happens? OR
    5. Should I just clean the old MAF and see if I get a CEL again? Thoughts?
    July 18, 2015
      Followup from the Pelican Staff: 1. Could be.

    2. Sure. has to work electrically.

    3. Yes, if it doesn't seal well, you will have unmetered air.

    4. Worth a try.

    5. Cleaning a hot film mass air flow sensor can ruin it.- Nick at Pelican Parts
     

    There are two common types of mass airflow sensors in use on automotive engines. These are the vane meter and the hot wire. Neither design employs technology that measures air mass directly. However, with additional sensors and inputs, an engine's ECU can determine the mass of intake air.

Mass Airflow Sensor Replacement at your home or office

After you have replaced or cleaned the sensor and cleared the code, you need to go drive the car and see if the code returns. If the same error code appears, then the problem probably lies elsewhere. Most of the time when you have an error code indicating a problem with the mass air flow sensor, it is usually solved by the installation of a new sensor. However, the computer can become confused sometimes and give misleading error messages. Wire harness issues, DME problems, and secondary air injection equipment problems may all give false MAF error codes. At this point, it's best to dive into the factory manuals and start going through the laborious test procedures contained in there.