hankosolder2 Posted July 8, 2012 Share Posted July 8, 2012 My charcoal canister vent solenoid on the '98 Legacy isn't holding vacuum when energized. Hope this will finally solve my evap emissions codes. (Replaced the rusty filler neck, replaced rat chewed through wiring to the vent solenoid, replaced a rat chewed through evap hose....) Anyone know the P/N for this? I can't find it on the online subaru parts places. They list some solenoids, but there are three different ones (purge, pressure control, vent) and I want to get the right one the first time! I did do a search. TIA, Nathan Link to comment Share on other sites More sharing options...
Fairtax4me Posted July 9, 2012 Share Posted July 9, 2012 If it is the purge control solenoid under the intake manifold it's 16102AA080 This is the valve under the #3 intake runner on the engine. There are several other valves back by the fuel tank. These are all difficult to identify due to the way they are labeled. Link to comment Share on other sites More sharing options...
hankosolder2 Posted July 10, 2012 Author Share Posted July 10, 2012 Tell me about it! I think I'm going to call one of the online parts suppliers and let them sort it out. It's definitely the vent solenoid, not the purge or pressure control ones.... Link to comment Share on other sites More sharing options...
afterbang Posted July 10, 2012 Share Posted July 10, 2012 (edited) I'm not sure that you are correct on that part number. I searched the part number you listed and it came up as the Duty Solenoid Valve for a newer turbo Impreza. I had to replace the purge solenoid valve on my 98 ej25 legacy and the part number I used was 14774AA271. The part number for the "solenoid for canister purge valve" is 14774AA341 You may want to double check for your application but I believe the 2.2l uses the same part number. Here's the subarupartsforyou.com look up for both of those parts and explicitly lists the placement for each valve. not sure which one you're hunting down. http://subarupartsforyou.com/cp_partlistbymod.php?model=Legacy&subcat=Emissions%2C+Valves&year=1998 Edited July 10, 2012 by afterbang added link Link to comment Share on other sites More sharing options...
Fairtax4me Posted July 10, 2012 Share Posted July 10, 2012 (edited) Found it here. http://opposedforces.com/parts/info/16102AA080/ http://opposedforces.com/parts/legacy/us_b11/type_47/intake_and_supply_system_turbocharger/intake_manifold/illustration_2/ The part number you listed opposedforces shows as the Pressure sources switching solenoid for the MAP sensor. #5 here. http://opposedforces.com/parts/legacy/us_b11/type_47/intake_and_supply_system_turbocharger/intake_manifold/illustration_2/ But. that's not to say they didn't use the same solenoid twice or even three times on the same car. I've tried to look some of these up before, and the names Subaru has for these various solenoids in their catalogs are very confusing. The only way to really know for sure which one you need is to look at it, because even the parts reps often can't find the right ones. SP4Y is useful for pictures if nothing else. 16102AA080 http://www.subarupartsforyou.com/cp_partdetail.php?partid=15215 14774AA341 http://www.subarupartsforyou.com/cp_partdetail.php?partid=6331 14774AA371 http://www.subarupartsforyou.com/cp_partdetail.php?partid=6370 14774AA271 http://www.subarupartsforyou.com/cp_partdetail.php?partid=6373 42084FA090 http://www.subarupartsforyou.com/cp_partdetail.php?partid=12553 42084FA120 http://www.subarupartsforyou.com/cp_partdetail.php?partid=12557 More goodies here: http://opposedforces.com/parts/legacy/us_b11/type_45/intake_and_supply_system_turbocharger/fuel_piping/illustration_6/ Edited July 10, 2012 by Fairtax4me Link to comment Share on other sites More sharing options...
ShawnW Posted July 11, 2012 Share Posted July 11, 2012 Its often written/stamped onto the part itself. Link to comment Share on other sites More sharing options...
hankosolder2 Posted July 31, 2012 Author Share Posted July 31, 2012 I replaced it and it fixed the problem! Passed OBDII emissions inspection just the other day. I used P/N 42084FA120. It's got large bore (> 1/2") fittings on each end. The '98 Legacy and '98 Outback use completely different vent solenoids. The outback uses a smaller bore vent solenoid. BTW, here's the diagnostic procedure I used. Pulled purge line off of charcoal canister, applied vacuum to the purge fitting on the canister (using a mityvac) while energizing vent solenoid valve with 12V. It should hold vacuum. If not, plug the end of the vent solenoid hose leading to the canister. If it doesn't hold vacuum, you've got a leak elsewhere (filler neck, gas cap etc.) If it does hold vacuum, reconnect the canister>vent solenoid hose and pull the hose off the other end of the vent solenoid. Plug the end of the solenoid and see if the system will hold vacuum now. If so, the solenoid is faulty. There are more straightforward ways to check it (you could just apply vacuum directly to the canister side of the vent solenoid while applying 12V to it) but I didn't have the fittings to adapt my 1/4" mityvac hose to the large bore hose for the valve. Nathan Link to comment Share on other sites More sharing options...
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