do i need to use a charcoal cannister?

[89325iturbo]

Or can ijust put a hose that TB nipple and just let it vent?

[nando]

you don't need to but there's no reason not to - it helps fuel economy with no real detriment to performance.

[89325iturbo]

I have no problem using one. i just dont have the can from my e30 anymore, i must of tossed it.

[M-technik-3]

I have one, need it. say mail cost from down to you? Came out of a Ti.

[89325iturbo]

I'll see if I still have mine first. Also there's a check valve in that line with a sensor. I don't have that check valve. Will it do anything if I don't have that plugged in on my engine harness?

[nando]

no, it only opens when the ECU grounds it. It's to vent pressure from the fuel tank. the tank can apparently implode from suction.. although mine isn't connected to anything and it hasn't been a problem.

[89325iturbo]

Ok good. Cause it costs like $75 bucks new.

[matt]

You may get a code if you don't have the solenoid hooked up.

[nando]

wonder if an E30 solenoid would work? it's just a 2-pin, ground to open valve.

[matt]

The ECU needs to see some current flow. I don't think it really cares through what. :)

[gregslow318i]

You may get a code if you don't have the solenoid hooked up.

this is true need to have it plugged in

[89325iturbo]

Can I use anything that plugs into the connector. Or does someone happen to have one of these check valves around for sale?

[hoveringuy]

The ECU needs to see some current flow. I don't think it really cares through what. :)

It needs to see around .05 amps of flow.

Use a 100Ohm, 2 watt power resistor wired in place of the solenoid and it will keep the ECU happy.

[RoadHazard]

Use no 8 from the diagram below

http://www.realoem.com/bmw/showparts.do?model=BE73&mospid=47481&btnr=13_0372&hg=13&fg=15&hl=145

[MR 325]

Just install the canister? I think you'll find a ton of people will sell you one for little to nothing if you post a wanted ad on here.