need help with codes

[MattTheBat83]

(33 o) egr not working properly and (91 c) o2 sensor reading lean... what does this mean exactly and what should i do about it?

 

[hotcobra03]

Maybe vacuum hose off or leaking or bad egr

 

[MattTheBat83]

the egr is only 2 years old and all the vacuum lines are hooked up

 

[hotcobra03]

Check the whole line cracks or kinks.is it a plastic or rubber vacuum hose?and as to your egr,just because its newish doesnt rule it out.

 

[MattTheBat83]

ok so the line that goes to the egr has no vacuum. the rest of my system has vacuum so i pluged a working line to my egr to see if it works and it does. i didn't see any hole or blockage in the egr's vacuum line. what should i do now?

 

[hotcobra03]

When u applied vac to egr car should stall. Did it?

 

[MattTheBat83]

idk if it stalled but i saw the egr open

 

[hotcobra03]

Idk how u got ur codes.ok key on eng off code33 or engine running 33 both deal with egr and it gets tricky

 

[MattTheBat83]

it was key on engine off

 

[hotcobra03]

Lets start over.tell me what yr ur car is engine type and how you did ur koeo test and who told u what code stood 4.my book is 3thousand pages thick but 1 page missing koeo codes i did a search and found different description