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How to Clean the MAF?


WxChaser
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Use MAF cleaner spray only as other chemicals may damage the MAF. I don't know how it is on WD21s, but R50s have the MAF secured by 2 T20 Torx bits (sometimes tamper-resistant T20 Torx bits with the hole in the middle of the screw). Remove the negative battery terminal before disconnecting the MAF harness.

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Some people have reported issues with MAF cleaner spray. Personally I use a Q tip and isopropyl alcohol, just be gentle. I've done this on 2 WD21s and an R50 with no negative results and some obvious cleaning. Here is a write up and discussion.

http://www.nissanpathfinders.net/forum/topic/5194-how-to-cleaning-your-maf-sensor/

 

B

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IIRC I used alcohol on a q-tip, just gotta be careful not to screw up the little wires or use a chemical that leaves a coating (WD-40 would be a bad choice).

 

IMHO that's just asking for trouble

 

MAF'S are close to $440 new and if you twist or break the wires. That's a $440 mistake http://www.courtesyparts.com/kb_search_result.php?keywords=[22680]+\(r50&cPath=4700_4701_4717_4720

 

I have personally had zero issues with CRC Mass Air Flow cleaner. It's a little more expensive, but I've always trusted CRC.

 

Just my two cents

 

-Kyle

 

EDIT: disregard my link, apparently mobile doesn't like it.

Edited by ferrariowner123
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Another q tip and alcohol user. Its impossible to screw up unless you use the q tip like you are trying to stab your brain.

Since you say it like that! :lol:

 

No one wants to mess up their MAF, be it with sprays or Q-tips. I can't recall who it was that had issues with cleaner, but quite a few people chimed in. Obviously, do what you feel confortable with, and rest easy knowing that if you have issues with a spray cleaner, you can wipe it off with a Q-tip. Best of both worlds! :D

 

B

 

PS CRC does make good products, I have used them for years, just not that one.

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  • 2 weeks later...

Cleaned my MAF after reading this thread and WOW!!!

The check engine light went off and the power was increased. The alcohol and Q-tip method worked perfectly and I couldn't believe the dirt and gunk that came off the wires.

Thanx for the info

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