Boost Gauge

[Jones~32]

Hey guys/gals,

I've today fitted a HKS mechanical boost gauge to my GT4, it reads fine whilst on boost, but it doesn't drop right into negative boost when off the throttle, or tick over etc... Is this right? It just sits around 0 instead whereas the gauge on the dash drops right down into negative

Also, when dumping the boost pressure, the gauge flickers around a bit and normally shoots up the gauge a fair bit, is this also normal?

Cheers

Mike :)

[Cexy_Ratt]

I just fitted a boost gauge to myn today,wanted more info than minus and possitive boost. Myn sits a 0 then when u turn it on , goes neg, untill around 3K thengoes up, but does fall back into negative when u take your foot off

[mik_m666]

seems a bit strange, the engine should be in vacuum till the car comes onto boost... at least mine does, have you checked for leaks on your gauge system? (each connection? engine runninig, soapy water!)

[adamgt]

this isnt right.... you should be in minus before you hit boost, and on tickover you should be well into the minus. not sure what might be causing it to do this tho

[Jones~32]

Ok thanks guys, thought it wasn't right, where did you guys 'plumb' yours in? :)

And i'll also have a check for leaks...

EDIT: Sorted now :D

[dawesy]

make sure you dont use the map sensor or fuel pressure reg pipes. map sensor is the one that comes out of the front of the manifold and FPR is down by the side of the throttle leaver.

[Fizz]

how did you sort it laddo?

Bet you had it plumbed into the wrong place as i said to you on MSN.. :P

[Jones~32]

I did have it plumbed in wrong oops