Question about 2001 Chevrolet Cavalier

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Yellow emission light

The light comes on between 45 and 90 miles .the code is 442 and the solution for a bad gas cap didn't work.But it seems to come on the next day after i get gas about 3 miles. 442 code for a small leak

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To find a leak in a vapor hose, you may need a leak detector that uses smoke and/or dye. A 0.020" hole is the size of a pin. it can be a pain to find .This is about the best alternative. You will probably need a mechanic for that. I responded to this on your other post.

Posted on Nov 16, 2008


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Evap system problem, 2008 silverado extended cable 5.3 Flexfuel check engine light is off, but, the scanner is showing evaporative system , no code, only yellow light, it won't pass the emissions. I a

Did the garage check the gas cap during the emission test? 90% of the time an evap leak turns out to be a bad gas cap. Or if someone had gas cap off while engine was running (pumping gas). Or if gas cap was not tightened all the way while driving. If this is the case, code saying evap leak, will clear after drive cycle self tests are done. Usually after 50 miles or more.(if the leak is solved)

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Yellow Check Engine (Emissions Light) keeps coming on after having my car serviced for the light.

in order to help you I would need to know what codes are causing the light to come on. If they replaced the gas cap I would assume that there is a large evap leak but the code will tell me this for sure.

You can pull the codes yourself with a code reader that you can purchase for about $50.

You can call you local parts store and see if they can do this for you.

since it has only been a week you can ask the dealer if they can check to see if the same code has returned. If it is the same code than they should be responsible for rechecking there work at no cost to you.

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2003 sienna with codes p0442 and p0446 what should i be looking for

most common is to check that ur gas cap is tight and or needs replacement 442 evap emissions control system leak detected [small] 446 is evap emissions control system vent control circuit malfunction the gas cap will set off these codes if cap is good need to then check the fuel and vent lines for cracked or dried out or partial disconnection

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2006 Kia Sedona's check engine light

try not to fill up the tank while the car is running. maybe there is a bad seal on the gas cap now. i would simply reccomend taking it to the nearest advanced auto part, autozone, jiffy lube...anything of that matter and get them to read the code for you[they should do it for free]. Make sure to write it down, come back here and let me know what it said. its probably not a big deal

Aug 28, 2009 | 2006 Kia Sedona

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I Own 98 dodge Dakota check Engine light, code PO 442 Evap Emission Control System Leak (small). Gas fill pipe is rusted, Should flapper hold back air with gas cap removed?

No the flap inside the fuel filler pipe is just an anti theft device to make it more difficult to siphon fuel out of the tank. The most likely cause for the code it the fuel cap itself. If you don't get the gas cap tight after you fuel up, it can set a computer code and turn on the Check Engine Light. After you check to make sure the cap is on tight, clear the engine code and see if it comes back on. If it does then have the fuel cap tested to make sure that it doesn't have a vaccuum leak.

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OBD codes 442 & 455

Check all of your EVAP lines and the charcoal canister. Also check the lines and overflow line from the gas cap to the gas tank.

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Check engine light on. Code P0440.

wow thermostat >>>> shucks i believe its evep emissions code like faulty gas cap can reset any computer the chck eng light will come on in 50 to 100 miles if not fixed....

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I have 2004 Lexus 330 and at 50,000 miles the service light came on. What the probable fix? Thanks.

I'm a Lexus tech,
You need to retreive a code from computer. Did you pump gas with car running. Will trigger Emission code P0440. Make sure gas cap is tight.

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Yellow emission engine light comes on

Is that P0442?, if so it may be due to a loose gas cap or leaking gas cap check valve.

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1 Answer

Check engine light on after overfill the tank. Check for codes at autozone, Change gas cap. Erase code. Ligth back on. Again to autozone. They say it is the gas cap. I let them know i have just replaced it...

You have a leak in the fuel system somewhere or a bad evaporative system sensor, the way the system works is the control module for the emission system pulls a vacuum on the gas tank and lines to check for leaks, if it can't get a certain vacuum level for a specified time it decides there is a leak and the check engine light comes on. This may be covered under the Federal Emissions warranty, call the dealer and inquire if the Evap System is covered.

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