Factory M35 Boost Gauge

[liam s]

as the title suggest i noticed my factory boost guage decided not to work today? if this is due two a brake or removal of a vac line i would be loosing slight amounts of boost yeah? cause it seems to be thisty as well. any help would be great cheers

[Chris Rogers]

look in the engine bay for a sensor with a vac hose and 3 wire plug.

if thats off its not gonna work. should be drv side

[liam s]

look in the engine bay for a sensor with a vac hose and 3 wire plug.

if thats off its not gonna work. should be drv side

cheers will check in the morn. i think your right cause it didn't work then it did then it didn't so a plug not clipped in all the way sounds like the culprit.

[iamhe77]

cheers will check in the morn. i think your right cause it didn't work then it did then it didn't so a plug not clipped in all the way sounds like the culprit.

Perhaps.

Mine worked at random times then ceased operation.

Nothing to do with vacuum hoses or clips as all have been changed/cleaned/re-clipped.

It gave 1 final boost reading of 2bar than that was it. lol.

[liam s]

Perhaps.

Mine worked at random times then ceased operation.

Nothing to do with vacuum hoses or clips as all have been changed/cleaned/re-clipped.

It gave 1 final boost reading of 2bar than that was it. lol.

they don't go up to 2 bar tho. this is the factory item your talking about?

[liam s]

look in the engine bay for a sensor with a vac hose and 3 wire plug.

if thats off its not gonna work. should be drv side

pulled the plug off and sprayed some water dispersant in there and now she's working a treat. must have been the engine wash my mech did when i got it serviced. thanks for the help chris

[iamhe77]

they don't go up to 2 bar tho. this is the factory item your talking about?

This is the factory item I am talking about.

It may not have numbers that read up to 2bar.... (sorry for the size, but non of my programs will save the re-sizing atm)

Edited May 17, 2009 by iamhe77

[liam s]

This is the factory item I am talking about.

It may not have numbers that read up to 2bar.... (sorry for the size, but non of my programs will save the re-sizing atm)

jeez how did you manage that? exhaust and boost controller

[iamhe77]

jeez how did you manage that? exhaust and boost controller

Dump back exhaust, HiFlow turbo, no boost controller and (my secret weapon) a busted boost gauge!

[STAG250]

I can't believe you haven't upgraded your head unit yet iamhe

[iamhe77]

I can't believe you haven't upgraded your head unit yet iamhe

LOL.

Why though?

I have done my iPod install, run all my music through it (in lossless - I HATE mp3) and it sounds pretty bloody good.

Whilst I know that there are far better out there, the sound from the OE Clarion unit is pretty good and is plenty loud enough for what I listed to (no doof doof).

....plus I would prefer to spend the $1500AUD on "fun" mods instead of the head unit I have in mind

What unit have you put in?

[liam s]

its not workin at all now think i'm gonna see if i can get better contact between the plug and sensor. if not something is stuffed.

[bikenut]

Liam

My boost guage was intermitant also.

I pulled the sensor apart, stuffed around with conectors, to no avail.

I found that the plastic hose had a split.

Make sure that this has not happened to yours.

Muz

[wht510]

Is the boost gauge sensor on all NM35's or do you have to fit it? Where would I find it in the engine bay?

I've got the 3 gauge single DIN (not fitted) and i'm hoping to replace my double din with a single din CD player and the gauges...

Would the loom be there?

[scotty nm35]

The loom may be, but the torque signal isn't. (even at the attessa ecu i'm pretty sure)

You will need to run the boost signal into the cabin, volts will be fine of course.

[wht510]

Hi Scotty. Ball joints are going great btw...

Not 100% sure what you mean. There wont be a signal for the torque split at both the loom out OR the attessa ECU?

So basically that gauge DIN I bought from you isn't going to work...

[scotty nm35]

The boost and volts will, but we can't find the torque output at the attessa ecu at this stage, perhaps there are 2 different attessa computers, similar to the dash? You might have more luck.

[wht510]

So there isn't a loom that is common across all cars. The cars that have the 3 gauge will have the plug and the ones that don't obviously don't.

Where is the boost sensor located on the VQ25DET? I thought if you didn't have the gauges, you didn't have the gauge sensor. (hoping to be wrong!)

[scotty nm35]

No, you would be surprised how many differences there are between the body looms. Engine loom is all the same, but the boost sensor comes off the harness on the drivers side of the bay where the headlight wiring goes, it is bolted near the strut tower.

Pretty sure we found the plug for the triple gauges, tucked up under the stereo wiring. I will have to ask the owner I forget. I just remember having issues getting a signal from the Attessa computer.

[Reaperblitz]

Anyone having problems with the lights constantly blowing out on these factory boost gauges? There's always one bulb that just doesn't stay alive..