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Old 07-12-2012
WillInThe04Ranger's Avatar
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MAF Cleaning help

Well I felt this was more of a general issue than something specific to my truck, I searched and found nothing helpful, so here we go .....

My check engine light came one two (Now three) tanks ago. I get code P0171 (System too lean .... bank one I think). I read one OBDIICodes.com (IIRC) that it may be a dirty maf and if it isnt that it could be a bad O2. So I am trying to clean the maf before i try anything else. I went to advanced and got the CRC Mass Air Flow Sensor cleaning .... cleaner. Are there any Do's and Dont's to cleaning the MAF?
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Old 07-13-2012
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If you follow the directions on the can, you should be good to go. It could be the o2 sensor if thats the read depending on your mileage.
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Old 07-13-2012
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Just take it off and spray the ****.

Just use common sense and make sure its compley dry before you reinstall it.
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Old 07-13-2012
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Spray the filaments and let it air dry. Do not touch them (with a rag or whatever to dry it) or else you'd need to get a new one.
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Old 07-13-2012
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Yeah I was gonna set it in the sun to dry it. No rag for me. My mileage is just under 50K lol. Thanks guys.
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Old 07-18-2012
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Little update: I have cleaned the MAF and the light has not come back on. Hoping it won't but if so it will be o2 time. I did get my truck inspector done and it passed. So now that light can come on all it wants! Haha. Thanks for the help.
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