Results 1 to 5 of 5

Thread: Problems with boost gauge

  
  1. #1
    Status
    Offline
    2fast's Avatar
    AOC Fanatic
    Join Date
    Dec 2004
    Posts
    319
    Mentioned in
    1 Post(s)
    Quoted
    1 Post(s)

    Problems with boost gauge

    HY! Fot start I´m from Croatia so I appologize for possible errors in writing.
    I have a problem with my boost gauge on my Astra Coupe Turbo. (Z20LET) When car is idle it is showing -1 bar, but it should be showind -0,7bar, am I wright? And when the car is on maximum boost it is showing only 0,5 bar and then drops to 0,2 bar!
    Besides that the car is working properly.
    What could be the problem? Is it posible that the boost gauge hose is rupted or something? And how to solve this problem?

  2. #2
    Status
    Offline
    LordNikon's Avatar
    AOC Gold Member
    Join Date
    Jun 2003
    Posts
    18,952
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Welcome to the site ...

    My gauge reads in PSi - so will have to work in that I'm afraid !

    On idle it read roughly -20psi. which I believe is over 1 bar. If you are on the standard engine setup with no modifications, then the car should hold about 9psi - or about 0.7bar , with an overboost of 12-14psi or around 0.9 bar.

    It sounds to me like the hose has a kink in it at some stage, I had this to start with, and fixed it by straightening the hose, and using some tape around that area to make it more solid. Seemed to fix the problem !

  3. #3
    Status
    Offline
    T-bone's Avatar
    AOC Obsessed
    Join Date
    Mar 2004
    Posts
    2,403
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Pretty much agree with LN on what he said - those figures sound correct - car will hold boost of around 0.5bar-0.7Bar iirc - with overboost between 12 and 14psi

    My car idles on around -0.67bar - so have most others I have seen
    Me run tings.... not tings run me!

  4. #4
    Status
    Offline
    2fast's Avatar
    AOC Fanatic
    Join Date
    Dec 2004
    Posts
    319
    Mentioned in
    1 Post(s)
    Quoted
    1 Post(s)
    2 LN: That´s what I thought. I will try with straightening the hose. Maybe that will help solve the problem!

  5. #5
    Status
    Offline
    LordNikon's Avatar
    AOC Gold Member
    Join Date
    Jun 2003
    Posts
    18,952
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Check anywhere it has to go between panels, or the dashboard to get to the gauges. I found this to squeeze it alittle tightly and kink the pipe

Similar Threads

  1. problems fitting boost gauge
    By jackdaxter in forum Turbo Petrol Engines inc. Transmissions
    Replies: 16
    Last Post: 31-07-2009, 18:06
  2. Oil pressure and boost gauge problems
    By NEVE'O in forum Turbo Petrol Engines inc. Transmissions
    Replies: 0
    Last Post: 08-06-2008, 21:45

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •