OBD II said both banks too lean...

[Bruce Mitchell]

Check engine light was on; used my handy, $16 OBD II reader and it told me that both banks were running too lean. Replaced the fuel filter and cleared the codes.

Success!

 

[Habbibie]

How many miles have you driven since you erased the codes?

 

[Korution661]

the code won't come back on till few miles have been on.. trust me I've done this twice already.. Gotta check for vacuum leaks.

 

[Rumbl]

Ugh I'm dealing with this now. Lucky for you that you found success that easily! I've tried everything!

 

[hartsemperfi]

I have same issue, i replaced intake and vac hose from rear of intake to pcv.

 

[Bruce Mitchell]

I've driven at least 600 miles since fuel filter repair & codes cleared. There was a PCV hose issue that we RTV & Gorilla taped when I got the Expy back in Oct '16; had that repaired properly at same shop that installed filter.