Hello fellas!

What's this really doing?



I've been running with this temporarily disconnected...as I haven't got any pipe on teh inlet to connect it to right now.
Is there a creative way to solve it without welding on the inlet pipe?

/J

 

I gather it is a carbon canister to take fuel that has overflowed and vapourise it before putting it back into the inlet. Some remove it to save weight but I'm not sure of the implications.

 

Yeah, I've found out that bit with google....and the valve on it is opened with manifold vaccuum...as far as I can see there won't be a vacuum leak with the hose hanging free....but the "vapours" will get released directly into the air...fuel...vaporized...sounds dangerous to me.

Cheers John!

/J

 

There's a hose that says "to E/G". I've lost the spring inside it. Will my car be okay?

 

Dunno what it is mate...

Does anyone know the effects I might get running the fuel vapour return to the atmosphere? Should I plug off the controlling vaccuum for the valve? ...that sounds like it'd get full of the stuff it's getting full of...whatever that is - fuel vapour.





I'll get me mate to weld a pipe on the steel intake tube methinks.

/J

 

Could you not connect it to the vacuum on the intake plenum?

I assume that you have a spare "take off".

I had ideas of removing mine but given the agg I left it in.

Cheers, MD.

 

I removed mine a few weeks ago and routed the pipe from the tank down under the gearbox. I plugged the manifold tapping.


No detrimental side effects or leakage on to ground to date

 

To quote from the missus' 405 handbook;

to minimise the escape into the atmosphere of unburned hydrocarbons, an evaporative emissions control system is fitted. The fuel tank filler cap is sealed, and a charcoal canister, collects the petrol vapours generated in the tank when the car is parked. The canister stores them until they can be cleared from the canister (under ECU control) via the purge solenoid valve. When the valve is opened, the fuel vapours pass into the inlet tract, to be burned by the engine during normal combustion.
To ensure that the engine runs correctly when it is cold and/or idling, the ECU does not open the purge control valve until the engine has warmed up and is under load; the valve solenoid is then modulated on and off, to allow the stored vapour to pass into the inlet tract.

OK boring lecture over. Make your own mind up as to whether it affects performance BUT if the car is garaged I'd connect it up pretty quickly as those vapours are a bit nasty!

 

Probably more than half the cars on the road vent via the petrol cap. You don't hear of too many garage explosions do you

Just another piece of OEM overkill on the safety front IMHO

 

Cossie I wouldn't be too worried about the garage blowing up but I might consider the carcenogenic qualities to be a wee bit hazardous. You might also want to consider the possibilty of petrol fumes entering the car from the ventilation system. Aforementioned 405 had an intermittent fuel rail leak (bloody hard to find BTW) and the resultant fumes were not too pleasant.

 

I have never had even the hint of a smell of petrol in the cabin since the mod.
Unlike when I (frequently ) refuel the car

 

My dealer left the hose off after recent accident repairs - found it while investigating why idle wasn't very smooth......refitting helped......but maybe that's pyschosymatic (sp?!)....

Richard

 

I have removed mine and havnt had any problems what so ever with either fumes or idle levels. I am also going to re-route the vent pipe down under the car somewhere where the vapour is a bit safer.