Lexus SC430 :: CEL - Evap Emission Control System Malfunction Codes P0440 And P0446
Feb 18, 2012
I have a 130K+ 2002 SC430 in which I recently started to smell gas in the cabin when air vents were set to pull air from outside. Within two weeks, I got the check engine light with two codes, P0440 and P0446, which mean "Evap Emission Control System Malfunction".
In doing some research the check light light could be everything from a gas cap which is not tighened properly, to a bad "charcoal canister " (whatever exactly that is), to a cracked or disconnected "Evap Hose". The only other SC430 related thread I could find on this topic is [URL] ....
If it factors in, I only use 93 octane gas. Interestingly enough, the check engine light came on within 30 seconds of me using the window washer to clean the windshield (at highway speeds), likely a coincidence.
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I have a 2002 Echo with 185K miles on it and i have a 2003 Echo with 101K miles on it, Both have P0446 P0440 P0441 codes coming up on them, the 2002 I replaced the gas cap, VSV valve and the rubber hoses from the throttlebody to the hard plastic line in the engine bay, and the 2003 I only replaced the rubber lines in the engine bay.
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So mad today. Check engine light came on, plugged in my scanner, got P0441 EVAP Emission Control system Purge Flow Fault and P0455 EVAP Emission Control System Leak (Large).
8-month old '13 TCH XLE is getting a check engine light already.
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I got a Ford f150 and getting the error code P0446 Evaporative Emission Control System Vent Control. My truck has burnt up 3 of these things already in the last 8 months. Why my truck keeps killing them?
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New owner of a 2003 1.8TPassat (29,000mi) as of the last 2 weeks and have just had my MIL come on. Scanned it at home with my Actron CP9125 scanner and got this code (P0455) which reads in the scanners manual as "EVAP Emission Control System Leak (Large)". Didn't know if this was a generic description of the code or VW has a more specific definition. What precisely this is in reference to, gas cap, vacuum hose????? Or what VW's actual description of this code is?
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I recently picked up a 2001 Prius to learn more about it. I've been trying to resolve the following codes: p0440, p0441, p0446. I used a new OEM gas cap & did a smoke test and smoke is coming out of the perimeter of the filler mouth and what seems to be a plastic ring with slots around the mouth.
My question is this:
1. Is this normal?
2. Does this indicate that the filler neck is bad?
3. Does this indicate that the charcoal canister is bad?
4. A bad VSV by charcoal canister?
5. Is it something else?
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2003 Camry LE, 4 cyl, 165k miles – Got all of the above codes. Obviously checked gas cap and no issues there. Checked both VSV underhood and had clicking. Checked VSV at canister under vehicle and no clicking. Used a Dremel oscillating tool with flat metal blade to cut off rusted Philips head screw. Removed VSV and checked by jumpering to battery. No clicking, but did draw a tiny arc. That told me it was “trying” to actuate. Sprayed PB Blaster into hose fittings of VSV and mowed the lawn. Came back to VSV and it now actuated – but very slowly and delayed. Sprayed electrical contact cleaner in hose fittings with the VSV jumpered and open. Activated VSV several times and sprayed contact cleaner through the hose fittings several times – both directions. VSV began to active quickly. Put VSV back on vehicle. SES light went out by itself after it ran the EVAP test.
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CEL came on after a couple of driving cycles showing code P0456 (evap emission control system very small leak detected)............. car drives fine has good gas mileage.....
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I have a 2000 Toyota Camry with 90,300 miles. Last week check engine light came on and mechanic said it was P0440 and charcoal canister needed replacement. Did the repairs and 20 miles and two days later CEL is on again. Take it back to mechanic and codes this time are P0441 and P0446. I'm told I need a new gas cap, so it's replaced with new one from dealer. 15 miles later, CEL comes back on and I return to mechanic. This time it's reading all three codes, but they can't find anything wrong. The only parts not replaced are the vacuum seal valves, which mechanic says test as good. They reset lights and 15 miles later, the check engine light is back on. My mechanic is baffled. What the problem could be or what they should check? Car drives fine, but light coming on is annoying.
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I own a 2002 SC430 with 20,200 miles on it which I purchased new. The other day the check engine light came on. I checked it with the code reader and got the following 2 codes. P0300 (random multiple misfired detected) and C1201 (engine control system malfunction). The car ran great before, now running real ruff and when you drive it has less power.
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We are selling the girlfriends 01 Passat. I pulled the codes tonight for a long standing check engine light knowing it had one of the 02 sensors bad. Here are the three codes I received from the scanner:
P0130 - 02 Sensor Circuit Malfunction (Bank I Sensor 1)
P0455 - Evaporative emission control leak detected (large)
P0441 Evaporative Emission Control System Incorrect Purge Flow
So is it one thing causing all three or are there common things to look at. We can't really afford to go replacing all the emission system sensors and hoses etc. in hopes of finding the right piece. Gas cap is screwed on tight and codes were cleared a couple times to make sure.
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I have some codes on my ranger 2000 here goes
P0141: o2 sensor heater circuit malfonction (bank 2 sensor 2 )
P0455: evaporative emission control system detected (large leak)
Now I will need to get that fixed cause I don't know where to look and what to look for ... For the leak I know there is a big crack on the plastic where the gas lid is could that be it ?
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I'm not too knowledgeable about wiring and electrical systems. I'm getting a P1451 code (EVAP Control System Canister Vent Solenoid Circuit Malfunction) on my 99 4.2. I've read that it could be a bad solenoid, bad wiring, or a blown fuse. So far I've;
- checked (and changed) the related fuse
- checked the wiring for damage at the connector
- checked voltage at the connector (12 volts)
- checked the resistance at the solenoid (around 60 ohms)
- actuated the solenoid with a 9V battery (can hear it opening and closing)
I haven't had a chance to check the wiring all the way back up the frame to yet, but I noticed that the ground at the trailer wiring harness has broken off the frame. Would this potentially cause a fault in the upstream wiring? I'm going to slap a new connector on and bolt it back down anyway, but as it's Labour (Labor) Day I'll have to wait for the stores to be open tomorrow.
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I have a 1998 blazer 4x4... I had a issues with the car before and I had to turn the idle screw up until I fixed my problem. I now fixed my problem and I need to know what my idle rpm should be at.
After I fixed the original problem after about a day of driving I had a P0507 Idle speed High/Low. I turned the set screw down and lowered my rpm. After about 5min of driving the code went away on its own.
About 1 week later I am now getting the P0507 again and now it has a buddy. P0446 Evap System.
Questions what would my idle rpm be? Can the high rpm cause the EVAP code as well.
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I have a 1998 Oldsmobile Aurora with 103,000 miles. I'm receiving the codes P0300B Misfire and P0440B Evap Emission.
I use Premium Unleaded gas (not at a cheap station) so I don't think it's the gas causing the misfire code P0300B. Also I've put on a new gas cap but I still get the Evap Emission code P0440B.
Working on a 1998 Oldsmobile Aurora with these 2 codes?
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Threw this code p0442 evap emission control small leak. I see its a popular code to have....
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Just received a P0441 CEL (Evap Emission System Incorrect Purge Flow). I have a 2.7l engine, 2WD. I've read other forums and it seems it's most likely the purge valve or charcoal canister.
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I've had the check engine light come on and was told it was probably from topping up too much and that it would go off on it's own... I should say I have no issues with idle or rough starts.
I had it scanned at Auto Zone. The print out shows: "EVAP emission system incorrect purge flow probable cause
1) Faulty purge control solenoid
2) Faulty vent solenoid
3) Blocked vapor canister
Previous posts suggest if it were a blocked vapor canister I'd have trouble completely filling the tank so I am hoping it's one of the others. Almost everything I see suggests the purge control and that looks like an easy fix. My concerns are a) if it is the vent solenoid - how hard is that to get at and b) what is the part number as I can't find it listed anywhere? I want to have both on hand before I start trying to fix this. Lastly if it is the vent solenoid should I just give up and see a dealer??
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Engine runs perfectly but "check engine" light" stays on due to faulty Emission Evap control pressure sensor (P/N; 89460-0w020). Problem is Toyota no longer makes this part and there is no after market for it. It appears I may have to "junk" a perfectly good truck.
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Replace this when they got a code p0440? If so, which way did you go about replacing? if so, did u have to drop the tank or from cutting from underneath the seat? Is this the same location as from the 1st gen is300?
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VSC, VCS OFF and Check Engine Light .... all came on a few minutes ago while out for a Sunday afternoon drive. Depressing/releasing the "VSC OFF" button multiple times did nothing. All 3 lights now stay on. Checked the manual which said to take in to Lexus dealer asap but could continue driving....something about vehicle stability control system not activating.
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