Jump to content
SAU Community

Boost Gauge Not Working

GTRNUR

By GTRNUR,
in Engines & Forced Induction

 Share

Recommended Posts

GTRNUR Grand Master

GTRNUR

Posted
Posted

Hi all,

The factory boost gauge on my R33 GTR isnt working. Actually its never worked since i bought the car. Where is the sender located for this gauge? I suspect its been unplugged with the AVCR was installed...

Cheers,

Ian

Link to comment
Share on other sites
GTRNUR Grand Master

GTRNUR

Posted
  • Author
Posted

Found the map sensor, and also found the hose that was connected to it that had been left dangling into the abyss under the plenum, not connected to anything.

Where is this connection on the rear of the plenum? Do you mean between the firewall and the plenum directly?

Cheers,

Ian

Link to comment
Share on other sites
wrxhoon Grand Master

wrxhoon

Posted
Posted
Found the map sensor, and also found the hose that was connected to it that had been left dangling into the abyss under the plenum, not connected to anything.

Where is this connection on the rear of the plenum? Do you mean between the firewall and the plenum directly?

Cheers,

Ian

The tube that connects in to is at the very rear of the plenum, you can't miss it but I think you will need a new hose you will find it will be hardened and even cracked .

Link to comment
Share on other sites
GTRNUR Grand Master

GTRNUR

Posted
  • Author
Posted (edited)

Found it! Started the car and felt around for something making a vacuum. I found a piece of rubber over the end of the hose fitting on the plenum. It that had broken off the main hose that connects to the map sensor.

This explains the occasional fuel smell i'd been noticing too, as well as the rich as hell when on boost, as the AFM's sensing more airflow, but it was leaking it out the hole in the intake. Should be interesting to see how much response I get back.

Thanks WRXHOON!

Edited by Vspec R33
Link to comment
Share on other sites
  • 1 year later...
Ecozile Contributor

Ecozile

Posted
Posted
This happened to me only a couple weeks ago. It was a cheap $2.50 fix for new hose.

Sorry for bump

i have the same problem - i must be retarted :) after hour and half i still cant find where i have to plug the hose on plenum's end.

boost gauge sits just below 0 as soon as i turn key on to ACC, when started car boost up fine, can feel it, hear turbos spooling up, but gauge doesnt move.

after searching through found this thread and sure enough - hose that goes to boost gauge was just hanging from plenums end :)

any help ? picture will be best :D

cheers

Link to comment
Share on other sites
GTRNUR Grand Master

GTRNUR

Posted
  • Author
Posted

if you found the map sensor up under the edge of the inner guard, next to the brake booster... disconnect the hose from it and start the car. at idle it should pull a vacuum that you can feel on the end of the hose. If the vacuum is there... sensor/wiring issue. If there is no vacuum trace the hose back and see where its broken or split.

Infact check it anyway... Its seems that hose from factory was never good quality. If it were nobody else would have had this problem!

Link to comment
Share on other sites
Ecozile Contributor

Ecozile

Posted
Posted
if you found the map sensor up under the edge of the inner guard, next to the brake booster... disconnect the hose from it and start the car. at idle it should pull a vacuum that you can feel on the end of the hose. If the vacuum is there... sensor/wiring issue. If there is no vacuum trace the hose back and see where its broken or split.

Infact check it anyway... Its seems that hose from factory was never good quality. If it were nobody else would have had this problem!

Thanks for the reply

will check hose and replace it just to be sure, i think it is avail at repco/ super cheap auto

was puzled why needle goes to just below zero when key is on ACC? is that normal? even without engine running? couldnt remeber that happening on my gtst...

thanks again :D

Link to comment
Share on other sites
GTRNUR Grand Master

GTRNUR

Posted
  • Author
Posted

It should go a long way below 0 at idle. Youve definatly got a split hose there, and at idle its sucking air in the split, lowering the pressure signal at the gauge's map sensor.

Link to comment
Share on other sites
Ecozile Contributor

Ecozile

Posted
Posted
It should go a long way below 0 at idle. Youve definatly got a split hose there, and at idle its sucking air in the split, lowering the pressure signal at the gauge's map sensor.

apologies for hijacking your thread

replaced the vacume hose from plenum to black box\sender

still needle stays just below 0

It should go a long way below 0 at idle - it sits at 0 even with out idleing/engine start - just key turned to ACC

faulty boost gauge/ sender ?

thanks for your input - i will try swapping cluster with another.

Link to comment
Share on other sites
Ecozile Contributor

Ecozile

Posted
Posted

Sorted.

new hose - no go

swaped gauge cluster - no go

swaped pressure sender (map sender ?) - all good :laugh:

big :D to Ian for putting me in right direction.

now let me begin searching for a map (is that what it is called?)/black box thingy

is it the same as GTST ?

thanks :yes:

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Nightmare_mistress_R33
      CD009 RB Conversion

      By Nightmare_mistress_R33 · Posted

      I am currently going this route. I am curious how much horse power you put behind the cut bell housing? Collins was telling me I am going to crack it and bluh bluh bluh. Because I didn’t buy the custom fly wheel from him. I am looking for somewhere around like 500 hp
    • Beanie
      Hello from the UK

      By Beanie · Posted

      Forgot to mention that these are the before pics when I first got it!
    • Beanie
      Hello from the UK

      By Beanie · Posted

      Thanks @PranK for the updated member status, much appreciated! 👍🏼 Now, about those pics… Unfortunately I could only find ones that I took in the dark. I was soon to discover that underneath it wasn’t in the best shape, but it was mine and that’s all I cared about at the time 😆
    • r32-25t
      PRP RB26 cast block + head prototype running

      By r32-25t · Posted

      Buy one
    • GTSBoy
      A little PU bush story

      By GTSBoy · Posted

      Oh, and only having done this task yesterday, I've now driven the car ~60km since, and while it is hard to avoid placebo effect and confirmation bias, I reckon that some annoyances I had with the way the car has been behaving have improved. Which....kinda makes sense, I guess. If the bushes were really stiff and resisting rotation, they would have been contributing to the effective wheel rate. And if it was more so on one side (which it was, because one side was worse than the other) then.... you might imagine that the additional rate would be asymmetric, and potentially even different between compression and rebound. And so... the car has been twitchy at higher speeds - like freeway on ramps. It really shouldn't be. The wheel alignment is good and there are no (other) known problems elsewhere in the suspension. But at 90-100 on a long sweeping ramp, tiny steering wheel motions would make it feel like it wanted to rear steer. Quite nervous. At lower speeds it would heave about in a manner that it didn't use to. Didn't want to put power down, etc etc. Now...seems to behave better. Am going to have to concentrate on the various corners where it has exhibited weirdness, on the rare occasions when I can get a decent run at them without Methanial getting in the way in his D-Max/Ranger/LDV Van/etc.
×
×
  • Create New...