CEL code 32 and 34???

[jesusgonzalez7]

Hello, i have a 240sx 1998 AT with 200,000 miles, the thing is that my CEL is on and i did the autodiagnosis and the ecu shows codes 32 and 34, which are EGR malfunctions and knock sensor, but the thing is i don't notice any malfunction, my mpg is the same (22 mpg) in the city, and i don't feel any change in the performance either (0-60) in 10 seconds as usual,

How can i fix this?

i would like to know if this is something i have to worried about? i cleared the codes from the ecu 3 times alredy but the keep showing again.

[r3v_v3ng3]

mine did this before. same codes. follow the hose from the egr to the bpt, its most likely ruptured

[jesusgonzalez7]

thank you i will try it