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What does it mean when a truck code reads lean bank 1 and bank 2 on a 2001 F-150?
Wiki User
∙ 16y ago
First thing id do is clean the massairflow sensor. Remove the sensor from the housing using a t-20? tamper proof torx bit (just 2 screws) and look for gunk on the tiny wires. I like to wipe them off with rubbing alchohol and a qtip. If your using a k@n airfilter theres your sign!
Wiki User
∙ 16y ago
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How to fix Lean bank 1 lean bank 2 on 2001 f-150?
Type your answer here... how to fix lean bank 1 bank 2 on 2001 f150 check gpm on your mass air flow, check fuel filter also very very common is the pcv vacuum hose at the very back of engine ( hard to get to) on the upper plenum
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1997 Ford F150 Stuttering Problem check Engine says heated sensors bank 1 Cylcinder 1 and 3 are lean and heated sensor bank 1 Cylcinder 2 reads Rich?
mass airflow sensor mine did the same thing and that's what fixed it for me...
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