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Old 01-14-2020, 11:51 PM   #6
neurotopia
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Join Date: May 2018
Posts: 42

2005 L-Series 3.0L Sedan
2002 L-Series 2.2L Sedan
Default Re: 05 L300 ECM codes

Thanks for the info.

Yeah I know about those, I replaced the assembly on my daughter's last year. I figure that's the most likely place to begin, I know it was also highly rusted on my car. Sounds like it is most likely also the end point.

I replaced the rear struts and some of the suspension bushings a couple weeks ago so it is quite likely that I managed to crack it during that time. Well, might as well just swap it out cuz it's gonna go at some point....

Quote:
Originally Posted by Russet View Post
P0442 SATURN - Evaporative Emission Control System Leak Detected Small Leak

Read more: https://www.autocodes.com/p0442_saturn.html
P0442 SATURN Possible Causes Missing or loose fuel cap Incorrect fuel filler cap used Fuel filler cap remains open or fails to close Foreign matter caught in fuel filler cap EVAP canister or fuel tank leaks EVAP system hose leaking Fuel tank leaking

Read more: https://www.autocodes.com/p0442_saturn.html

P0455 SATURN - Evaporative Emission Control System Leak Detected Gross Leak

Read more: https://www.autocodes.com/p0455_saturn.html

P0455 SATURN Possible Causes Missing or loose fuel cap Incorrect fuel filler cap used Fuel filler cap remains open or fails to close Foreign matter caught in fuel filler cap EVAP canister or fuel tank leaks EVAP system hose leaking Fuel tank leaking

Read more: https://www.autocodes.com/p0455_saturn.html


I would say look at your fuel filler neck and see if the small line return isn't rusted out this can also cause the error codes as well. Saturn are known to rust this line. So look there as well-you will have to jack the Saturn and also remove the right rear tire to remove the Wheel well guard to see these lines. But my money is if you never changed or look at this line then it's rusted out. I had two Saturn a LS2 '00 with the return line evaporator rusted out and the same with my 2nd Saturn L300 '02. Once I replaced the fuel filler neck that fixed the error code.

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