Boost Gauge Faulty

[steve12]

Anyone know what maybe the cause of this fault?

Has never worked since car first imported. Car is 93 S1 R33.

[30three]

if it's the stocko just get an aftermarket. but if you want to check i think the sensor for the stock gauge is near the firewall on the drivers side but it's been a while since i went looking for it. could be a loose connection or faulty sensor

[Moodles2]

Does it sit perfectly on 0? If so the it probably doesn't have a vacuum source connected up especially if it has a A/M gauge or a electronic boost control. If the needle stays down with the engine on, either the gauge cluster is buggered or the map sensor (the black box mentioned above, on the firewall on the drivers side) is buggered

[mad082]

if it just isn't reading anything, then i'd say that the hose to the stock map sensor (drivers side just behind the strut tower in the engine bay) is probably split. i know a few people that have had this problem. the hose just gets old and brittle. check that. if it is split just take the hose to autobarn, repco, etc and get a new piece of hose.

[Randon_I_Am]

if it just isn't reading anything, then i'd say that the hose to the stock map sensor (drivers side just behind the strut tower in the engine bay) is probably split. i know a few people that have had this problem. the hose just gets old and brittle. check that. if it is split just take the hose to autobarn, repco, etc and get a new piece of hose.

As above is only for if the guage is reading "0" i had to change the vacuum pipe to mine because it kept splitting. but if the needle is just not moving at all, then it could be the sender unit is buggered or the guage is buggered... or a loose electrical connection somewhere

[rgr34]

im another r34 owner with buggerd stock gauge, works when it wants to its all to common fail ( in most skylines) i just purchased a aftermarket mechanical boost guage reads in psi much better.

Edited October 30, 2009 by rgr34

[RompaStompa]

my r32 gtst four door does the same thing, i got it last week and yeah it just sits on 0 boost doesnt move the slightest bit when on boost, might have to sus it out tommorow

[steve12]

Thanks for the help guys!!

It ended up being a broken hose to the MAP sensor. I didn't know it was in the engine bay. A bit hard to see near the brake booster.

[KwS]

another thing it could be, especially in a 33 is a dry solder joint in the cluster. Mine had a dry joint on the speedo, so i assume it could happen to any of the other gauges too. Main symptom that gives away the fact that its a dry joint is that the gauge wouldnt work when it was cold in the cabin. Chuck the heater on, and give the cluster a couple of hits and away it went.

Fixed my cluster by pulling it to bits, and re-soldering all the joints for that gauge. Didnt take long, but you will need to be pretty good at soldering so you dont mess it up and kill the cluster for good.