Not Getting A Boost Reading On My Digicluster

I did a digital dash self check proceedure and the cluster checks out good.  I tested the boost sensor with a hand vacuum pump and the voltages at zero are 2.2v and 1.3-1.4 respectively so the boost sensor is good too. I couln't find any vacuum leaks either.  Do I have a boost leak or is my T2 toast?  Damn, I work on Nissans for a living, but I just don't have the time or luxury to tear it down since this is my daily D. I need someone with personnal scenario so I can start looking in the right direction.

Can you hear the turbo spool? And can you feel the turbo kick in?

PraizewoodCan you hear the turbo spool? And can you feel the turbo kick in?

Strange. Don't really know anything about digi dash so can't help you beyond but my guess it must be something with the cluster. It only shows 0 psi at acceleration or showing nothing at all? I'm getting mine shipped next week hopefully if gods12 can pull it out by then

Check if all your vacuum lines are plumbed correctly. The stock boost gauge on an analog gauge cluster has it's own separate vacuum source for it to work.

Thanks I I'll try that.

silverarrow27Check if all your vacuum lines are plumbed correctly. The stock boost gauge on an analog gauge cluster has it's own separate vacuum source for it to work.

I personally run my boost/vac gauge directly off my intake manifold
for the most accurate readings.

SprockCapnWhere would I find the stock boost gauge's vacuum source? I would like to run my after market boost gauge off of this and find a better vacuum line to run my BOV from.
Thanks

SkS12I personally run my boost/vac gauge directly off my intake manifold
for the most accurate readings.

8sixS12: I suspect it's you cluster, and that's a bitch to find a replacment... althou I happen to have a turbo digital cluster that was working at the time it was pulled from the car.

SprockCapn: You need to read my explanation on this here:

http://www.club-s12.org/forums/index.php?s...25731&st=20

Nah, It's not the cluster.  I tested the cluster and the boost sensor.  They are both fine.  Here's something strange though.  The vacuum hose leading to the boost sensor is teed off between the vacuum switch and the manifold.  And to make things worse, the vacuum line from the switch to the tee is collapsed.  The routing of the boost sensor hose doesn't seem right to me.

The line to the boost sensor can be t'd off of something else, but it basically needs a clear airpath to the intake plenum *after* the throttle body.

Sorry to be reviving an old thread but I'm trying to figure out why my boost gauge isnt working for my digi cluster either.
How would I test the cluster and the boost sensor(don't know location) to see if they are both working and can go from there

The boost sensor is a plastic box located under the wiper motor area. It will have a small vacuum type hose going to it (or not if it broke off). Simple way to test would be to use a vacuum / pressure tool plumbed into the boost tranducer. Alternately, a syringe can be used to apply vacuum / pressure to the device. Have the key on and observe the gauge.