im trying to figure out why im running excessively lean mixture, im getting the cel for it, i checked the o2 sensor with the modus and its good, im gonna throw in a fuel filter tommorow and see if it goes away...

 

vacuum hose leak... possibly a loose intake connection between the filter and the throttle body... check and make sure the trap door on the afm moves freely when pushed... always check all the easy stuff first.

 

yea i smoke tested it, no vacumm leaks and the intake is good also

 

ok, have you had any loss in power? freeway speed/power still good? if it was a fuel filter, you would notice it would have a lack of power as if it was running out of fuel.

the other issue could be it having clogged injectors... or an injector or two that are not flowing well...

 

it does seem like around 1500-2000 rpms it seems like it doesent have as much get up like it used to? i hope its not my injectors, big job