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Post by AmunRoo on Nov 16, 2018 1:23:31 GMT -6
Need to clear this code soon, I have an emissions test coming up in 3 months. P0446 is the code that I'm getting. I replaced the gas cap and just for shits and giggles I sanded it down and it's impeccable. Code didn't go away. Replaced the purge valve at the throttle body. Code didn't go away. Replaced the O-ring and retaining ring on the fuel pump as it was rusted out. Code didn't go away. I checked for vacuum leaks and didn't find any. I guess my next step is to replace the charcoal canister. Anyone else have any other ideas before I go ahead and do this? This would probably be the most expensive part in the EVAP system so far. Any help is greatly appreciated
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Post by AUROD X on Nov 16, 2018 11:06:13 GMT -6
Check air pump if working properly, in my case my hoses from canister where bad and one falling off the canister which I tight up with ziptide. One hose had a rip on it that was not visual from below or in front. I Inspect hose all around and caught it then replace it. After that I was good for smog."PASSED"
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Post by AmunRoo on Dec 25, 2018 18:38:58 GMT -6
What air pump?
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Post by AUROD X on Dec 25, 2018 19:21:27 GMT -6
Air or smog pump underneath front clip by wheel well driver side. I'm in California so every time I warm it up it starts up then shuts off if I'm correct.
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Paulaurora
Super Moderator
Posts: 3,823
Staff Member
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Post by Paulaurora on Dec 25, 2018 20:11:39 GMT -6
Did you check the power to the purge solenoid ? Po446 is the purge solenoid maybe the new one is defective or the hose to it, or the other common issue is the connector. i think the other parts you replaced wasnt necessary you need to go back to solenoid and check again. Make sure its clicking or there is fuel neck leak and even new cap doesn't seal well.
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Post by AmunRoo on Dec 28, 2018 19:32:35 GMT -6
I'm going to end up changing the vent valve solenoid at the charcoal canister. If that doesn't work, the last step is the charcoal canister itself as it might be clogged.
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