Harry2000
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- East Yorkshire
I’ve just installed a boost gauge but it only reads max boost why might this be?
Boost gauge
- Thread starter Harry2000
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More info required here ...
What make of boost gauge ? [Do you have a link to it]
Where is the boost pressure sensing the boost pressure ? [what is the sensor fitted into ???]
Pictures help ...
What make of boost gauge ? [Do you have a link to it]
Where is the boost pressure sensing the boost pressure ? [what is the sensor fitted into ???]
Pictures help ...
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- 11,020
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- North of the Wall
You're not giving much away, but
presumably you've bought a digital pressure sensor and you've wired it up incorrectly, giving the equivalent of a FSD.
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Nah, you need to pay more attention Lynall
I fitted one to mine after I rebuilt the engine. Mine is the standard tube to the air inlet manifold, never get a FSD. Easiest way to get max boost from the turbo is going up hill with my foot to the floor. (That's not an FSD though)
Last edited:
Harry2000
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Yep I wired it up wrong , wasn’t paying attention
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Glad you got it sortedYep I wired it up wrong , wasn’t paying attention
Harry2000
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- East Yorkshire
Can’t get the boost gauge to read 0 now , I’ve had the air line on the gauge and the needle moves with air but won’t go to 0Glad you got it sorted
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What make of boost gauge ? [Do you have a link to it]
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Located in: Zhejiang, China, Buy a decent gauge !!! instead of Cheap shite.
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- 11,020
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You've probably carped it with the airline!
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Try one of these, it will likely work a lot better ... https://www.ebay.co.uk/itm/371974766616
Or better still .... https://www.ebay.co.uk/itm/362806305618
Or better still .... https://www.ebay.co.uk/itm/362806305618
Neither of those are really suitable for a land rover diesel, unlike a petrol you will never get negative boost pressure. You want one with a much smaller range, you get about 1bar from a tdi, and about 1.5 from a td5 as standard. You will only get more if you have played with it and even then without big changes will not see over 2bar. I had one of these fitted to mine pre fire: link, I will be refitting a new one when I get around to the dash installation but will back up @lynall point about never looking at it, I just need one to check the engine rebuild is ok and then something to fill the hole in the dash!
Harry2000
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- 52
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- East Yorkshire
I was only gentle never gave it the beans
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It would be very difficult to judge. Your gauge has a full scale deflection of 30psi. A basic, cheap compressor is going to deliver 120psi+ So you could almost instantly over pressurise the transducer unit.
