MAF sensor

[igorce]

Does anyone know how should I clean MAF sensor on Nissan Almera 2,2 dci? I think it could help me to reduce fuel consumption and to have a better start of engine.
If there is a link of it already, please give it to me.

[Skym]

It could help.

To clean MAF sensor, use CRC MAF cleaner -

http://www.crc-canada.ca/Default.aspx?tabid=235

Or contact cleaner. Do not use carb cleaner, as it damages sensor.

Also clogged o2 sensor can cause high fuel consumption. o2 sensor should be changed every 40,000km or so. Change o2 sensor earlier if you do alot of short trips around town and don't use car on motorway / highway alot.

[igorce]

It could help.

To clean MAF sensor, use CRC MAF cleaner -

http://www.crc-canada.ca/Default.aspx?tabid=235

Or contact cleaner. Do not use carb cleaner, as it damages sensor.

Also clogged o2 sensor can cause high fuel consumption. o2 sensor should be changed every 40,000km or so. Change o2 sensor earlier if you do alot of short trips around town and don't use car on motorway / highway alot.

How do I remove MAF? Does it really necessary to be removed from the engine to get cleaned?

[Skym]

MAF needs to be removed to be cleaned.

From what I can remember, on a Skyline you unplug MAF plug on side of square part on top of MAF, undo MAF intake hose clamp, unclip clips on side of airbox and remove MAF (and part of airbox that's bolted to MAF) from intake piping. Then unbolt MAF from airbox. Should be similar process with most Nissan's. Then spray CRC MAF cleaner down the MAF (through the gauze screen on one side) and hang MAF somewhere until it drip dries before refitting to engine.

There is a proper way. But should be done by a professional, as can damage MAF.