Setting Up Carbon Canister With Plazmaman Throttle Body

[jamesdt]

Hey guys just seeing if any one on here has run with there carbon canister after installing an aftermarket manifold and throttle body. I'm running a plazmaman plenum with one of there 66mm throttle body, the difference being the factory throttle body has a ported vacuum source on it which runs to the carbon canister and the plazmaman doesn't. Will it be an issue if both lines from the carbon canister are connected to a constant vacuum source? Plazmaman has said no one ever connects them after installing there manifold so just seeing every one else has done, cheers

[GTSBoy]

You could get them to drill you a ported vacuum tap or put one in there yourself. Not running a cansiter is just one more reason for a cop to bend you over.

[jamesdt]

thats my thoughts exactly. im trying to keep as much of the emission gear hooked up so if the bonnet were to get popped its not something stupid like that i get done for.

does anyone actualy know why exactly it has to be connected to a ported vacuum source?

is it to prevent the engine sucking in fuel vapours in idle conditions and only allows the vapours to be drawn in during part throttle?

[scotty nm35]

Generally there is a solenoid energised by the ecu when the engine is in high vacuum on cruise. It sucks all the fumes out of the tank to create a vacuum, then the solenoid switches off, so even on boost fumes can't escape from the tank.

[GTSBoy]

The ported vacuum is the signal that opens the little valve on the canister (on the older engines without a solenoid). It stops the purge line from supplying boost pressure to the canister and fuel tank.