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.
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)
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Yep I wired it up wrong , wasn’t paying attention
Glad you got it sortedYep I wired it up wrong , wasn’t paying attention
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
You've probably carped it with the airline!
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
dag019
Well-Known Member
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!
I was only gentle never gave it the beans
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.