Longranger1 wrote:Measurement wasn't from absolute zero. Subtract 100kpa.
variflex wrote:As longranger has eluded to, this is also taking in to account atmospheric pressure which is approx 14.7 PSi assuming your at sea level, subtract the 14.7 from your 35 and your pretty close to factory spec
MilkmanDan wrote:Try running it inline with map sensor hose and see what you get, see everyone else runs from this location with the 2.5s so worth a go to diagnose a faulty gauge or indeed an overboost.
OffRoadDave wrote:I'm struggling to get my head around this, isn't the gauge with the engine off at zero psi, and in the video showing 35psi above atmospheric pressure?
OffRoadDave wrote:This has been bugging me all day so I had a dig around in the service manual I have and although I'm unsure exactly which variant the MN has, it's showing the Euro5b-high power engine having a boost pressure of 203.1 - 238.6 kPa, which is roughly 30-35 psi, so it's not impossible for the boost pressure to be this high based on the information I have.
Tony wrote: Why your Triton does not log P1298 is a mystery to me. Either that gauge is telling porkies or something funny is going on with the MAP sensor not allowing the ECU to see over 3800mv.
Trust me as I tune these things.
Adstar77 wrote:MilkmanDan wrote:Try running it inline with map sensor hose and see what you get, see everyone else runs from this location with the 2.5s so worth a go to diagnose a faulty gauge or indeed an overboost.
Can't see why it would be different when its from the same source, but ill give it a shot
MilkmanDan wrote:Adstar77 wrote:MilkmanDan wrote:Try running it inline with map sensor hose and see what you get, see everyone else runs from this location with the 2.5s so worth a go to diagnose a faulty gauge or indeed an overboost.
Can't see why it would be different when its from the same source, but ill give it a shot
I was eluding to the point being blocked partially and maybe falsifying the gauge.
Before freaking out about melting internals maybe buy a cheap gauge from supercheap to test with or just try Tonys method
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