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International Automotive Technicians Network
Re: Request for Archive Links: MAF, BARO, P0420
Posted to Open Discussion Forum on 2/12/2014

Here is a link hot off the presses.

[OBD Operation Summary for Gasoline - Model Year 2014]

Those sensor values are used in a myriad of ways.

BARO for example is used to calculate exhaust back pressure Login to read more.

Files Referenced:

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