Tornados Posted August 3, 2017 Share Posted August 3, 2017 Hi All Ford Focus 1.8 tdci 2007 I have had a problem with a P2099 code (Low boost pressure). I suspect the sensor as when using a scanner to read live data it is reading 28.6 ins Hg when the engine is off and changes very little when driving (perhaps 26 to 31). I dont know if this is a normal range. I would like to measure the actual pressure by connecting a gauge to the port where the map sensor tube normally connects. Any ideas of what value I should see? Quote Link to comment Share on other sites More sharing options...
Damien Posted August 3, 2017 Share Posted August 3, 2017 old post may be helpful Quote Link to comment Share on other sites More sharing options...
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