Jump to content
The mkiv Supra Owners Club

May of accedentally fiddled with boost


Duffman
 Share

Recommended Posts

Was fitting my boost gauge earlier and wasnt too sure where to fit the t-piece.(even after many reads at the post on here)

 

Anyway I took the hose from the turbo pressure sensor out the original Y and put the boost gauge hose here...didnt sound right at all...the engine was about to conk out.

 

Put it back to the way it originally was and took it out a spin and it felt so much faster when on full boost...as if i'd maybe done something by removing the 'turbo pressure sensor' hose.

 

Is there anyway that this could change what my boost is running at?

 

Really don't wanna melt my engine :please:

Link to comment
Share on other sites

Please, please, please put the hoses back the way they were originally and get someone to take a look.

It won't cost the earth. ;)

 

Yes exactly, please do...:)

 

I had this recently which Ivan discovered; My boost gauge hose was directly connected to my FPR which as she is a vvti, is very sensitive and if she ever run lean,

i wouldn't know about it...

 

So i had it put back to the way it should be...:)

Link to comment
Share on other sites

Anyway I took the hose from the turbo pressure sensor out the original Y and put the boost gauge hose here...didnt sound right at all...the engine was about to conk out.

 

You can't change the level of boost you are producing by messing about in the area. However you can melt a piston quite easily. That sensor is the thing the ECU uses to determine how much fuel to inject - if you've introduced a boost leak in that area then it will see a lower pressure than you actually have, and it'll inject less fuel than it should.

 

A leaner fuel mix gives, to a certain extent, more power. If this is why your car feels stronger then you need it fixing quickly otherwise you'll damage the engine - the leaner mix also causes much higher combustion chamber temperatures, rapidly leading to detonation and damaged pistons.

 

-Ian

Link to comment
Share on other sites

You can't change the level of boost you are producing by messing about in the area. However you can melt a piston quite easily. That sensor is the thing the ECU uses to determine how much fuel to inject - if you've introduced a boost leak in that area then it will see a lower pressure than you actually have, and it'll inject less fuel than it should.

 

A leaner fuel mix gives, to a certain extent, more power. If this is why your car feels stronger then you need it fixing quickly otherwise you'll damage the engine - the leaner mix also causes much higher combustion chamber temperatures, rapidly leading to detonation and damaged pistons.

 

-Ian

 

so how would i actually check this Ian???

 

Is there anyone nearby who thinks they could help me out by taking a look...im near glasgow.

 

Would really be appreciated :D

Edited by Duffman (see edit history)
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.