Hi guys,

 

Anyone know if the stock boost gauge has a fuse, all vacum lines are ok and checked sender with a spare, but gauge constantly at -14psi...

 

Any help appreciated, thank you...

Is that with the engine running Terry,

I managed to start it today...but its with or without it running.

Boost gauge receives an electric signal from the boost solenoid, the needle itself works like a pendulum if its free or not bent then its a signal issue.

Is there no fuse that runs the sender, needle should be fine, and tried 2 senders...

According to the colour wiring diagrams in the tech section, there is a fuse G in the relay box for the boost sensor. Ive read somewhere eng cont fuse in the snall box near the Bmc

Mine used to do this, give the dashboard a thump on top above the gauge.

Sometimes they stick after a period of inactivity.

Cheers guys I'll give it a try, thank you...

I tried to look at wiring diagram on the online manual on my phone before starting this thread but it won't let me look at the full page,

Its like the psge is to big for the phone lol...

Thanks again everyone....

Could be this: http://www.twinturbo.net/nissan/300zx/forums/technical/view/686348/Stock-boost-gauge-stuck-at-full-vacuumgtgt.html

 

and the fix: http://www.twinturbo.net/nissan/300zx/forums/technical/view/686461/done-it-now-was-just-a-stuck-needle-in-the-end-gtgt.html

Cheers guys I'll give it a try, thank you...

I tried to look at wiring diagram on the online manual on my phone before starting this thread but it won't let me look at the full page,

Its like the psge is to big for the phone lol...

Thanks again everyone....

 

Any joy?

Sorry it was the plugs on the back of the clocks pushed them about and it started working lol...

I stripped it to a bare shell and disturbed everything and had a boost gauge not working and my stupid clutch problem so not that bad...

Thanks everyone...