Pizzano

What should the idle vacuum reading be on my Cobalt boost gauge , (shows vac/Boost). shouldnt it be showing boost in WOT, or is it normal while in park and reving the motor to higher RPM's that the Vac gauge bounces to a higher vac, I was thinking there must be a leak in the tubing, or am I just being stupid...Thnks

I have a Maggie MP112 and Magna charger instructed me to hook my Boost gauge tubing to the port next to the booster pump line, it is the brass cap next to the Black tube going to the booster pump module.


Pic shown below,

stevieturbo

If the engine is not under load, no it will not be showing any significant positive pressure.

Drive it.

Pizzano

Ah ok was just making sure, didnt want to have a leak in the line , son in law hooked it up for me since I cant bend anymore for the manual labor.

Thanks Bud we will drive it tomorrow

jbsblownc5

Pizzano

Thanks guys , all is well