Throttle Body

[camlex]

Hello,

Between how many miles you should clean Throttle body?

I have 171,000 and i don't remember cleaning MAF. Should I?

Thanks,

[Toysrme]

The throttlebody itself, rarely. Eventually the carbon from EGR will make it stick a little bit, but that takes a long time before the throttle & ACIS plates start to stick.

I suggest cleaning the upper intake every 9-12 months. Overactive EGR takes 5-10 horsepower from the build-up.

[camlex]

Good morning Toysrme,

You mention cleaning upper intake, How to clean? Any tip, instruction?.

Thanks in advance.

[monarch]

Corporate Toyota recommends periodically cleaning the throttle plate

http://i5.photobucket.com/albums/y189/mastertech/tbclean.jpg but not the upper intake tract or the MAF sensor and does not sell any products for cleaning those items. Any type of cleaning method that causes a plume of smoke to come out of the tailpipe can be harmful to the expensive oxygen sensors and catalytic converters.

My experience has been that 30,000 miles is a reasonable interval for cleaning the throttle plate