Mass air flow sensor cleaning
#1
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For once I read a label before spraying away on a bottle of MAF cleaner. It said not to be used on certain sensors including the ones used by Lexus.
Anybody know if that applies to the LS430 or is it safe to clean the sensor?
Anybody know if that applies to the LS430 or is it safe to clean the sensor?
#2
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Search this forum for 'maf cleaning' in the title... you'll find it's been covered numerous times.
Good luck.
Good luck.
#4
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IIRC early 90's model LS400's used an Air Flow Meter but later switched to the current Mass Air Flow Sensor. The earlier technology measured air flow differently and could be damaged easily by cleaning solvents.
#5
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That video is misleading. The actual sensing wires are in the top of the tube, not shown in the video. He didn't spray enough to actually clean the elements. Flood the tube with cleaner until it runs clear. Let it dry. The sensor with the bulb shown in the video is the intake air temp sensor.
#6
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That video is misleading. The actual sensing wires are in the top of the tube, not shown in the video. He didn't spray enough to actually clean the elements. Flood the tube with cleaner until it runs clear. Let it dry. The sensor with the bulb shown in the video is the intake air temp sensor.
#7
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I was told by a previous Lexus service manager not to use a spray cleaner on the MAF. He used high pressure air (at a distance) on mine. Ultimately I purchased an OEM Denso for my 16 year old MAF. Made a huge difference in performance and it was new!
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#8
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How much did you pay for the MAF and where did you buy it from? Did you buy it from the dealer?
#9
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Air doesn't clean a MAF. The residue on the wires is usually oily. There is nothing wrong with spray cleaning as the chemicals involved evaporate with no residue. Your dealer knows all of this but they can't sell you a new one if the proper cleaning is 100% effective, which if it is done correctly, is.
#10
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Air doesn't clean a MAF. The residue on the wires is usually oily. There is nothing wrong with spray cleaning as the chemicals involved evaporate with no residue. Your dealer knows all of this but they can't sell you a new one if the proper cleaning is 100% effective, which if it is done correctly, is.
Last edited by Bocatrip; 07-08-18 at 03:07 PM.
#11
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Denso 197-6030 MAF, about $45 on Amazon. The part number is confirmed by Amazon and can be checked on Denso's "First Time Fit" website. On my '03, I used this to replace the original after cleaning yielded "so-so" results. I noticed an improvement after replacement.
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