UIM vacuum port
#3
Goodfalla Engine Complete
iTrader: (28)
since the UIM is subject to whatever the turbos are feeding through the entire intake tract, it will be under vacuum and under boost, depending on your skinny pedal. Mahjik is 100% correct. If you wish for a sensor to see only the vacuum, then a check valve needs to be used. Just make sure the direction of airflow through the check valve is towards the UIM. this will ensure that boost does not get to said sensor.
btw, you have me curious... why do you need just vacuum?
btw, you have me curious... why do you need just vacuum?
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Jeff20B
1st Generation Specific (1979-1985)
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09-16-18 07:16 PM