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Old 06-16-2012, 01:18 AM   #1
mikewayne
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MASS AIR FLOW SENSOR HELP!! Sprayed wrong part.

Hi guys, please don't bash me for this, as I obviously don't have no mechanical experience in the auto field.

I thought I was cleaning out the Mass Air Flow Sensor, which obviously wasn't the right part. I unplugged a harness that connects to the Mass Air Flow Sensor. After unplugging the harness, I then sprayed the inside of the connector to clean the dirt. Obviously this wasn't the right spot to "clean."

30 minutes later, the car through a CEL, and starting running abnormal. The car has loss of power and acceleration.

Any ideas? I'm hoping it is just the Mass Air Flow Sensor, because I planned to replace this part anyways. Thanks!


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Old 06-16-2012, 03:32 AM   #2
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What did you spray it with? What was the CEL for?
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Old 06-16-2012, 08:04 AM   #3
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Pics of the part you sprayed please.

The MAF should be in the air intake tube, and you should've let it dry first. Also, what sort of cleaner did you use? You should've used either electrical parts cleaner without lubricant, or spray MAF cleaner.
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Old 06-16-2012, 11:46 PM   #4
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Quote:
Originally Posted by mikewayne View Post
Hi guys, please don't bash me for this, as I obviously don't have no mechanical experience in the auto field.

I thought I was cleaning out the Mass Air Flow Sensor, which obviously wasn't the right part. I unplugged a harness that connects to the Mass Air Flow Sensor. After unplugging the harness, I then sprayed the inside of the connector to clean the dirt. Obviously this wasn't the right spot to "clean."

30 minutes later, the car through a CEL, and starting running abnormal. The car has loss of power and acceleration.

Any ideas? I'm hoping it is just the Mass Air Flow Sensor, because I planned to replace this part anyways. Thanks!


Posted via FF Mobile No, you didnt spray the right part. The MAF sensor is inside your MAF tube (isnt it labled ontop?). The thing the wires are connected too is what you have to remove. Did you even disconnect the battery before disconnecting the sensor?

How to clean your MAF sensor: All you need is MAF cleaner spray, a screwdriver and a security torx bit (I dont remeber what size.) You will also need a socket wrench to remove the negstive battery cable. First disconnect the negative cable on your battery (the black one). Next disconnect the wiring harness that connects to the sensor. Next use the security torx to unscrew the two screws holding the sensor to the MAF tube. Do not lose the screws. Pull out the sensor. You'll notice it has a long tube like thing that sticks down into the MAF tube. Look inside the sensor towards the bottom, you'll see little metal wires. Thats the part that gets dirty. Itll look black or brown. Spray alittle onto those wires and into the sensor. Shake excesse out and let it sit. The stff will work the dirt away and the should start to look more silver when clean. Make sure excess is shakes out and then let it air dry. Once it looks drive just reverse the steps and put it back in.

Now, to try and correct the mistake you made I would disconnect the battery and disconnect the harness. Let that dry out totally, clean your sensor and then hook everything back up and see how it does. Hopefully itll clear the code and everything will work out thst things are dry and clean.
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Old 06-17-2012, 08:50 PM   #5
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Will update you guys tommorrow tomorrow. I took Sensor out tonight, cleaned it well with Mass Air Flow Sensor cleaner. Re sprayed the wiring harness with the Cleaner and now letting them both dry over night. I did disconnect the battery before, and letting it sit over night.
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Old 06-17-2012, 11:44 PM   #6
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Will update you guys tommorrow tomorrow. I took Sensor out tonight, cleaned it well with Mass Air Flow Sensor cleaner. Re sprayed the wiring harness with the Cleaner and now letting them both dry over night. I did disconnect the battery before, and letting it sit over night.


Posted via FF Mobile Why did you re spray the wiring harness?
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Old 06-18-2012, 01:16 AM   #7
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It doesn't matter why and frankly I think more people need to clean electrical connectors in their cars. I've only found a few connectors with grease on them. Majority don't and like to corrode,,, even moreso if you wash your engine.


But yes, post the code the car is throwing. We might be able to save you some money (as in not needing a new MAFS).
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Old 06-18-2012, 10:13 PM   #8
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Ok guys, update.

Today I disconnected battery, cleaned wiring harness again, and removed mass air flow sensor and cleaned it and let dry over night.

Plugged everything and no cel! Drives great! Much more responsive!
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Old 06-18-2012, 10:46 PM   #9
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glad to hear you resolved it.
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Old 06-19-2012, 12:01 AM   #10
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Yay!! That's great news.
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