What Do I Need To Re Solder

[Blazk]

What do i need to re solder to get my boost triple gauge working on my gtt ? Here is a pic of the insides of the sensor.

[t_revz]

soldering iron and solder obviously. scratch as much of that crap of and clean it up before starting. try to get the joints hot quickly and either shake it to flick out old solder or just add to it depending on what it looks like. try not to get too hot as diodes and other components will break down and fail. sharp knife or scewdriver when you finish and scratch a line between the tracks on the board incase any residue has settled between them. goodluck

[Blazk]

Oh kind of ment what part do i need to re solder eg. not the whole thing surely?

[jrm]

The three main bits with the orange around them are the usual culprits for dry joints - you shouldn't even need more solder - just clean up the gunk, then heat them up with an iron to re-flow, and should be good. The orange is a good indicator of an issue with the joint. I re-flowed those three joints on mine (only ones showing issues) when the gauge was starting to play up on occasion (usually going over bumps), and it's been perfect since.

If you see any others that look dry - might be worth cleaning up & re-flowing those too.

[Tommy Kaira RL]

I would solder the pins that would plug into the loom. By the looks of the photo that would be your problem of the boost guage not working

[Blazk]

mmmm re soldered them and the other ones that looked orange...boost moves a little on start up but then nothing.. still sensor or gauge?

[jrm]

Is the hose still intact from the plenum? One of the times my gauge failed, I found the hosing split to pieces, barely noticeable - but it just sat on 0 (or just off). I think they fall to pieces after a few years in a hot engine bay - it was terribly brittle.

[Blazk]

I pulled it off the sensor and started up, the suction was defiantly there, didnt see any cracks or splits...but will mulit check it.

Edit: Hose is clean and not cracks or holes that i could see..

Does it matter if i have an after market boost gauge on / will that effect if the stock boost is working ?

Edited July 31, 2010 by Blazk

[jrm]

Aftermarket gauge will typically be hooked up to a different point, so should be fine. As long as the piping from the plenum is going into the boost sensor, and the sensor is plugged in fine, should be good. You could also try reading the voltages out of the boost gauge - the R34 service manual lists what voltages associate with what boost levels (will rule out whether it's sensor or gauge failure)

I'd offer to drop past and let you try out my boost sensor, but the front end of my car is in pieces at the moment for fitting FMIC and not sure it's gonna be driving for another week or so... (depends how lazy I am)

[Tommy Kaira RL]

Try borrow a boost sensor some wreckers will let you try to buy. Or you could blow into the sensor with a hose and watch the guage. I had to wiggle the plug on the boost sensor all the time to get it to work until i re soldered. The pins could be dirty where it plugs in. It sounds like its trying to work. The guage wouldnt even move if it wasnt for the sensor sending something.

[Blazk]

Aftermarket gauge will typically be hooked up to a different point, so should be fine. As long as the piping from the plenum is going into the boost sensor, and the sensor is plugged in fine, should be good. You could also try reading the voltages out of the boost gauge - the R34 service manual lists what voltages associate with what boost levels (will rule out whether it's sensor or gauge failure)

I'd offer to drop past and let you try out my boost sensor, but the front end of my car is in pieces at the moment for fitting FMIC and not sure it's gonna be driving for another week or so... (depends how lazy I am)

Thanks for the offer Jenna, I read your FMIC didnt fit which sucks.

I found the after market boost is hooked up via the BOV so that didnt affect it at all. I went to Andrew's (nightcrawler) last night and picked up his spare triple gauge. Put it in and seems to be working, but only quickly tested it. Looking at the back of the Nismo one there are a few orange solders so i will go over them today and see what happens.

As for the sensor anyone know if the r33 and r34 use the same one ? I read on a couple post people using r33 sensors and they seem to work the same, anyone confirm?

Edited August 1, 2010 by Blazk

[Blazk]

The gauge I got off nightcrawler worked...swapped over my nismo face and led's and looks like new. Thanks for all the advice, guidance and offers.

[jrm]

Ahhhh .. so it was the gauge!

What have you done to rectify it? Sounds a bit odd .. the regular vs nismo 3-gauge cluster is quite different - almost sounds like you changed the faces over or something