VersaTuner - tuning software for Mazdas
VersaTuner - tuning software for Mazdas
Results 1 to 2 of 2

Thread: Small EVAP Leak - Canister Purge Valve Diagnosing Help

  1. #1
    Registered Member

    Join Date
    Jul 2019

    Small EVAP Leak - Canister Purge Valve Diagnosing Help

    So the girlfriends 2011 Mazda 3 has a "small EVAP leak" I forget the exact code. I did a search and started with a new gas cap, no dice. Then I did a bench test of the purge control valve and it seems ok. I removed the back seat and did a visual inspection of the top of the gas tank and it seems ok also. It also has a metal retaining plate and not a plastic nut for the sender unit to gas tank, I did see where the nut can crack but it seems she has an upgraded style. Finally I jacked the rear end up to explore for the canister purge valve.

    So below is what I seen. It actually looks great for the age and the fact we are in southwestern PA. The actual canister purge valve is behind the suspension spring tower, it seems like a real chore to get at so no bench test for it. The best I can tell the connector in the orange circle comes from the engine and its labeled purge on the canister. The connector in the red circle goes to the tank, it is labeled tank. The green hose goes to the canister purge valve then somewhere further up. The first test I did was take the line going to the engine off and did a pressure test... where I blew into it real hard. Anyway it passed. The second thing I did was take the line going off towards the purge canister and pressure tested it after wiping it off with a standard show towel. You can blow straight through there. Am I on to something? Im more of a diesel and 2 stroke mechanic of sorts than an evap person. I would have taken the purge canister valve off at this point but I dindt want to dig further unless I was on the right track. Thanks!!

    purge canister.jpg

  2. #2
    Registered Member concept's Avatar

    2014 Mazda3 S GT auto, 2008 MX5 6-speed

    Join Date
    Mar 2009
    San Diego
    Were you referencing a service manual when determining how to test the purge valve? Sometimes, a crude test is not enough to determine whether the part is good or not.
    2014 3S GT, Deep Crystal Blue, Eibach Pro-Kit, Enkei PF01s, Koni Sports, Pirelli P ZERO ALL SEASON PLUS tires, 225/45/18
    2008 MX-5 Touring (Mazdaspeed CAI, HIDs, Progress/Koni Sports/Racing Beat sways, SST Magnaflow muffler and tips)

Similar Threads

  1. 2012 Mazda 5 where is the evap canister
    By anchorbeach in forum Mazda5
    Replies: 6
    Last Post: 12-11-2018, 02:17 PM
  2. 2011 CX9 evap purge solenoid location?
    By yangstylz in forum CX-9 Engine & Transmission
    Replies: 2
    Last Post: 08-06-2018, 03:42 PM
  3. Canister Purge Solenoid and P2187
    By Streetsquid72 in forum Mazda5
    Replies: 0
    Last Post: 02-11-2018, 08:20 PM
  4. Replies: 1
    Last Post: 10-23-2017, 02:42 PM
  5. evap purge valve...
    By Wbriggs19061 in forum Mazdaspeed Protege
    Replies: 2
    Last Post: 05-30-2007, 09:09 PM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts