Danny Martin Posted February 10, 2013 Share Posted February 10, 2013 Hi I had someone say on a 1991 LS400 you can't clean the MAF sensor is that right a new one is $1200.00 Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted February 10, 2013 Share Posted February 10, 2013 I've seen threads on how to clean them and also warnings that they are easily damaged and made unusable. Sewell sells them for $900 if you register to get a forum discount: http://lexus.sewellp...LS400-1991.html Without registering, Sewell's online price is $1227 not including shipping: Part number I'm looking at is 22250-50010 You might try looking for one a used one at a salvage company. According to Sewell's website and http://www.toyodiy.com , the same MAF sensor is used on all 90-94 LS400's. Quote Link to comment Share on other sites More sharing options...
FEASTJAPAN Posted February 17, 2013 Share Posted February 17, 2013 Aside from cleaning the sensor, the problems sometimes exist in the board atop, usually bad contacts that could easily be re-soldered. Quote Link to comment Share on other sites More sharing options...
Danny Martin Posted February 17, 2013 Author Share Posted February 17, 2013 Board atop I don't understand ?? Quote Link to comment Share on other sites More sharing options...
FEASTJAPAN Posted February 17, 2013 Share Posted February 17, 2013 You can use a knife and cut away the top cover. Inside you will see wires leading from the connector end to the hot sensor. At times a wire will get burned out and an easy fix is to re-solder that wire back in place. Image below of the cover atop the AFM. Quote Link to comment Share on other sites More sharing options...
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