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Mon Dec 15, 2014 10:01 pm
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Sun Dec 02, 2007 6:19 pm
Jersey C.I.
JohnC wrote:Hi Dave,
The Boost gauge is an electrically driven item from the pressure sensor .... item 342 ... see below.
I have checked the circuit for the gauge and it is pretty simple.
!2v are supplied to one side of the Boost Gauge, and the other side of the gauge goes straight to the pressure sensor, through it and straight down to earth.
What I would do is ... with ign on and the gauge reading full scale, unplug the sensor, and the gauge should drop to zero. This is what I suspect will happen. If that is the case ... replace the sensor.
If, however the gauge stays at full scale, there is a "short to earth" somewhere between the gauge and the sensor, possibly in the sensor connector its self.
Hope this helps.
John
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Mon Dec 15, 2014 10:01 pm
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Sun Dec 02, 2007 6:19 pm
Jersey C.I.
jagcat12 wrote:Yes I did unplug the sensor and yes the gauge dropped to zero I then got another pressure sensor from clee and that is the same, full boost when plugged in and zero when unplugged .I feel the likelyhood of two sensors being defective unlikely so am open to any other suggestions.
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10431
Fri May 28, 2004 11:58 am
Derbyshire
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Mon Dec 15, 2014 10:01 pm
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Fri May 28, 2004 11:58 am
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Sun Dec 02, 2007 6:19 pm
Jersey C.I.
jagcat12 wrote:Hi John ........... Any way of testing the electrical side of the sensor ,there is no resistance over the 2 end pins neither on the middle pin and the end pins and applying a vacumn does not alter that .Not being leccy minded but it would appear that the whole thing is faulty
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Fri May 28, 2004 11:58 am
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