Canister vacume lines sucking flat

[Nubbyless]

Hi I have a 95 mustang GT mostly stock it sometimes has an erratic idle its showing lean code both banks I can not find any vacume leaks i changed ect sensor iat sensor pcv valve and screen cleaned the maf sensor
I did find the lines leading from under the upper intake to the charcoal cannisters are pretty worn and are actually sucking flat while running though they don't seem to be leaking could this cause the issues and codes I'm having thanks

 

[General karthief]

I think so, it enriches cruze mode, need to replace them.

 

[VibrantRedGT]

What was the number for the codes, a 180 something?

If yes, those are O2 sensor lean codes. If you haven't changed your O2's in quite sometime now's the time.