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Old 01-14-2020, 03:50 PM   #1
neurotopia
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Join Date: May 2018
Posts: 42

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

Getting a P0440 and a P0455. Minor loss of fuel economy and some slight stumbling on acceleration (not consistent). Any ideas? I'm gonna start by looking for damage to the fuel filler neck assembly. It was pretty corroded last I checked and might've cracked.

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