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post #1 of (permalink) Old 04-24-2019, 05:59 PM Thread Starter
Green Bean
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Unhappy Discovery II Running Rich

My Disco 2 has been running rich for the last 8 months or so. It always trips fault codes for both of the front O2 sensors and occasionally throws a "running lean" code

I can get the numbers for the codes if I need to

I've replaced the front two O2 sensors twice, and the rear two once, checked their wiring harnesses (just replaced both head gaskets), replaced the fuel pump, and thoroughly checked my fuses, even replacing a few that tested good but looked bad

It currently gets anywhere from 6 to 10 mpg and it's bleeding me dry

Any help would be much appreciated

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