Hi John,
Unfortunately, any cleaner that that enters the sensor pressure opening(s) may have adverse effects on the device.
So, sealing the access hole(s) on the part with kapton tape is absolutely recommended. You can plug also the sensors with a cap before cleaning. If apply, the small vent on the back of the sensor should be cover with kapton tape as well during the cleaning process.
Caps can be found via the following supplier: http://www.stockcap.com/products.asp
And just to let you know, ultrasonic cleaning is not recommended as the frequencies can damage wire bond interconnections.
Many customers have gone to no clean operations or spray clean in a direction where the spray is not directly going into the sensor hole.
You can find more details about this in the following link which will send you to a thread in the Freescale Communities: https://community.freescale.com/thread/307192
Have a great day,
Jose Reyes
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