Service Engine Soon

[beav626]

I keep getting this light thrown every few weeks.

 

The code refers to the charcoal canister in the fuel system... My friend with a tech 2 -checked it all out and

everything seem to work fine.

 

is there a way to self diagnose the problem? or fix the charcoal canister?

 

I will try to post up the actual code later.

[95Sierra2500]

Please get us the actual code. Without it we can't really help you diagnose the problem.