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Help! Boost Gauge Just Died!

snoopy4eva

By snoopy4eva,
in Australian Capital Territory

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snoopy4eva Enthusiast

snoopy4eva

Posted
Posted

Hi all,

I was driving home from work today and by R45 GT-T stock boost gauge just stopped working. It sits at -1. Car still works fine and I can hear the turbo at work.

I'm totally new to all this so I'm freaking out a bit. Does anyone know where I should look to see if I can fix it? If not who would be able to fix it at a reasonable price?

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https://www.sau.com.au/forums/topic/248276-help-boost-gauge-just-died/
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Viper_r32 Community Regular

Viper_r32

Posted
Posted

sometimes this can be a simple a a small hose that has come loose. look for a small rubber hose that generally runs from the back of the inlet manifold in to usually a small black box that sits on the fire wall in the engine bay usually in line with were the boost gauge sits on the dash

W1ngnut Proficient

W1ngnut

Posted
Posted (edited)

If the R34 GT-T (hehe R45, i wish :-P) has the same boost gauge setup as the R33, there is a MAP sensor on the driver side near your brake booster. This has a vacuum line going from the back of the engine manifold to it. This could have come off which will result in you being unable to read anything other than '0' (in your case -1).

^^ahh, i was beaten^^^

Edited by sfrizza
Viper_r32 Community Regular

Viper_r32

Posted
Posted
ok i took some pictures of what im assuming to tbe the Brake Booster. where abouts should i be looking?

try that area bellow the blue compliance plate, it should be some were around there, hose should be about the size of the one in the photo running parallel to the strut brace

snoopy4eva Enthusiast

snoopy4eva

Posted
  • Author
Posted (edited)

ok after a crap load of poking around. i decided to take it for a drive just to test. first 10 mins, nothing. then all of a sudden it woke up. started reading pressure properly. The needle was a bit unsettled when i was waiting at the lights at first jumping around a bit but then after a while it calmed down and became normal.

any idea what could have happened? i dont want to think that its ok when it cud be something majorly wrong with the turbo/engine.

Edited by snoopy4eva
  • 5 months later...

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