Has anyone heard about anyone's throttle body going out. Also, what is the most air the MAF will take before going out. Another question. If I have a boost leak somewhere (anything above 4 psi) why would I run rich?

 

1.) yes throttle bodies can fail.
2.) Not quite sure what your asking.
3.) Not enough boost=not enough air being forced into the cylinders=running lean, as the fuel load is still the same.

 

Well I am actually running pig rich above 4 psi. Hoping it is a boost lead or pcv valve.

 

Take it for computer diagnostics. BUT NOT to the stealership!