need help please

[94rangersplah]

i found 2 codes with my check engin light being on..

327 knock sensor 1 circuit low input
558 egr circuit fault

can some one please tell me how to fix the prob.


thank you
Russell

 

[Ranger44]

Could very well be the EGR solenoid, any exhaust leaks, or holes in the EGR tube?

 

[94rangersplah]

nope all is well. i have a small crack on my exaust man. is getting replaced this week end.
where in the hell is the knock sensor and where do i buy one?