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BMW E36 3 Series 1992-1998 (318i/s/ti, 320i, 323i, 325i/s, 328i/s, M3, conv) EVap shut off value location


Permlink Replies: 8 - Pages: 1
Last Post: Dec 18, 2014 2:28 AM Last Post By: Marcov719
joebob23

Posts: 2
Registered: 12/09/03
EVap shut off value location
Posted: Apr 27, 2003 6:34 PM
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can you guys tell me where that is? please thanks alot a picture of it would be really nice thanks alot again
Charlie

Posts: 4,783
Registered: 12/09/03
Re: EVap shut off value location
Posted: Apr 28, 2003 1:26 PM   in response to: joebob23 in response to: joebob23
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Do you mean the Evap. temperature sensor or the Evap. expansion valve?
master tech

Posts: 27
Registered: 12/09/03
Re: EVap shut off value location
Posted: Apr 28, 2003 6:11 PM   in response to: joebob23 in response to: joebob23
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generally the expansion valve is fitted to than left of the heater box. follow the air con pipes through the bulkhead into the car, you will find it her. what is your problem?
joebob23

Posts: 2
Registered: 12/09/03
Re: EVap shut off value location
Posted: Apr 29, 2003 2:04 AM   in response to: master tech in response to: master tech
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Well i got this check engine light on then i used a diganostic tool and it game me code 33 which in the manuel that came with the diagonstic tools says

"Evap shut off value closed"

i have no idea what that is.

i thought it was that metal thing in my tail pipe that open and closed. oh and mine is a 1998 328i bmw. I am thank full for any help you guys can give me.
Charlie

Posts: 4,783
Registered: 12/09/03
Re: EVap shut off value location
Posted: Apr 30, 2003 11:19 AM   in response to: joebob23 in response to: joebob23
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The Evaporative Shutoff Valve is part of the OBD II 'Running Losses' system. The valve functions to seal of the fuel tank and all related plumbing/hoses/lines while a small pump pressurizes the closed system to check for hydrocarbon leaks to the atmosphere.

That valve should be mounted to a metal bracket with a rubber isolator on the side of the intake manifold in front of the throttle itself. Drivers side.
rblood

Posts: 2
Registered: 12/09/03
Re: EVap shut off value location
Posted: May 5, 2003 1:11 PM   in response to: joebob23 in response to: joebob23
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I fought with this same problem for over a year and just got it resolved this past weekend. First, the EVAP shutoff valve is located in the trunk under the spare tire and the round plastic cover - it is fitted into the side of the activated charcoal canister. The valve is around $100 new from the dealer. However DO NOT BOTHER REPLACING IT - IT WILL NOT SOLVE YOUR PROBLEM.

The problem is with the DME. The CE light gets set because the DME thinks the fuel tank pressure is too low - has a vacume - (the opposit of the "leak" code you get when you leave your gas cap off). I changed the fuel tank pressure sensor, the EVAP shutoff valve and the purge valve and this still did not help.

Ok, drumroll please... The fix is a DME reprograming. The dealer told me on Sat. that a service bullitin came out on this telling the BMW service folks that the DME was too sensitive to this low pressure situation, and that the DME "patch" would resolve it. They reprogrammed the DME on Sat. and NO CHECK ENGINE LIGHT for the first time in a year! Charged me one hour labor to fix - $95. Take the car to the dealer and tell them to look up the service bulletin and save yourself a ton of money and aggravation. Make sure they look the bulletin up and fix it, not just reset the CE.

Hope this helps.
ctaylor

Posts: 1
Registered: 07/03/10
Re: EVap shut off value location
Posted: Jul 3, 2010 1:39 PM   in response to: rblood in response to: rblood
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Sorry to bring up an old thread, but I too have been fighting this problem for some time. Just wondering if the DME patch fixed anyone else's problem? Or if it's still working for the original poster of this solution? Thanks!
collinsjsa10@co...

Posts: 1
Registered: 08/08/10
Re: EVap shut off value location
Posted: Aug 8, 2010 1:39 PM   in response to: ctaylor in response to: ctaylor
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If there a TSB, does anyone have the number? I've been looking and have seen nothing about DME reprogramming or OBDII issues.
I'm also interested to see if that was in fact the problem, or replacing the valve corrected it.
Marcov719

Posts: 1
Registered: 12/18/14
Re: EVap shut off value location
Posted: Dec 18, 2014 2:28 AM   in response to: joebob23 in response to: joebob23
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Im having the same issue and looking for the service bulletin number.

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