Tamora footwell
Author
Discussion

allanb

Original Poster:

309 posts

206 months

Wednesday 8th February 2012
quotequote all
Sorry! more Newbie questions!

I have a rubber tube attached to a black box with an electrical connector that has dropped down in the footwell of my Tamora.




can anyone let me know what it is and where it should be located?

Cheers
allan

Kernow67

110 posts

268 months

Wednesday 8th February 2012
quotequote all
I may be corrected, but I believe its an air pressure sensor - the box is actually a manifold absolute pressure MAP sensor in "normal car world" but not necessarily measuring manifold pressure in this case.

Where does the tube go? Does it go back through the bulkhead? The reason I ask is that my T350 has the sensor in the footwell (sort of tucked behind the carpet) but no tube attached

Edited by Kernow67 on Wednesday 8th February 22:31


Edited by Kernow67 on Wednesday 8th February 22:37

Kernow67

110 posts

268 months

Wednesday 8th February 2012
quotequote all
Just been having a poke around in my footwell (as you do at this time of night) and I have located the pipe - which in mine is disconnected (and apparently much shorter than the one in your pics!). The pipe seems to go through the bulkhead and, I think, is the one that goes to the rear of the airbox.

This would make sense if it is to measure the pressure on the inlet side and feed it to the ECU. Can anyone else confirm, and is there anyone out there with a T350 who can confirm it should be connected to the barometric sensor as it seems to be on the Tamora?

As for where it should be - I would just cable tie it back up, just like all the other bits up there!

allanb

Original Poster:

309 posts

206 months

Thursday 9th February 2012
quotequote all
Kernow67 said:
Just been having a poke around in my footwell (as you do at this time of night) and I have located the pipe - which in mine is disconnected (and apparently much shorter than the one in your pics!). The pipe seems to go through the bulkhead and, I think, is the one that goes to the rear of the airbox.

This would make sense if it is to measure the pressure on the inlet side and feed it to the ECU. Can anyone else confirm, and is there anyone out there with a T350 who can confirm it should be connected to the barometric sensor as it seems to be on the Tamora?

As for where it should be - I would just cable tie it back up, just like all the other bits up there!
Hi,

Thanks for the feedback (especially at that time of night!) i'm pretty sure the "tucked up behind the carpet" approach is what mine used to be, but I wanted a second opinion!

All the best Allan

shep1001

4,618 posts

212 months

Thursday 9th February 2012
quotequote all
Kernow67 said:
Just been having a poke around in my footwell (as you do at this time of night) and I have located the pipe - which in mine is disconnected (and apparently much shorter than the one in your pics!). The pipe seems to go through the bulkhead and, I think, is the one that goes to the rear of the airbox.

This would make sense if it is to measure the pressure on the inlet side and feed it to the ECU. Can anyone else confirm, and is there anyone out there with a T350 who can confirm it should be connected to the barometric sensor as it seems to be on the Tamora?

As for where it should be - I would just cable tie it back up, just like all the other bits up there!
If I disconnect mine when plugged into the laptop, the pressure reading disappears from the readings. If you have the software and a atop plug her in and check.



Kernow67

110 posts

268 months

Thursday 9th February 2012
quotequote all
shep1001 said:
If I disconnect mine when plugged into the laptop, the pressure reading disappears from the readings. If you have the software and a atop plug her in and check.
Do you mean disconnect the electrical socket or disconnect the air pipe?

By the way, I was talking to RG today, and they said that the difference the barometric sensor makes is pretty marginal and just fine tunes the mixture to account for large increases in altitude - not too much of a problem here I guess.

What I can't quite understand is that if the pipe does go to the airbox, then the differences in pressure it measures could be quite large, so is that where the pipe goes?