P0455, P0441, P0430 all at once
12-03-23, 09:11 AM
#1
2nd gear
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P0455, P0441, P0430 all at once
2009 RX350, 200k, FWD. I'm getting 3 codes, P0455, P0441, P0430. All seem related to emissions but could be a plethora of problems. Does all 3 at once/triggered at same point in time vector into a narrower diag?
12-03-23, 03:30 PM
#2
I would focus on P0441, if the purge valve is failing it may cause P0455, not 100 percent sure, maybe the reverse. P0430 would seem to be an unrelated, but more expensive fix, so hope fixing the other two clears it.
The following 2 users liked this post by Mesquite77:
Chapp (12-04-23),
Margate330 (12-03-23)
12-04-23, 01:19 PM
#3
12-27-23, 10:44 AM
#5
Pole Position
I'd check the vacum hoses, engine as well the ones for the evap canister above the muffler... I ended up replacing the evap canister a yr ago or so....
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