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Ls400 issues- P0171 and won't start

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Old Nov 2, 2018 | 03:58 PM
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FLIGHT011
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Default Ls400 issues- P0171 and won't start

so all of a sudden my 96 ls400 wont start. i used the scanner and code P0171 popped on. so i know the issues could be alot of different things but is there anything i should i check out first? any help would be highly appreciated. thanks

Last edited by RA40; Nov 2, 2018 at 09:58 PM. Reason: descriptive title
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Old Nov 3, 2018 | 02:59 PM
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check out all your vacuum hoses, even the brake booster vacuum... and plug them if you have too...
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