I think my cat is plugged or the resonator. How do you check to see if either is bad? and that still doesn't explain the squealing noise. checked both belts and ruled them out. i was thinking maybe the extra back pressure prom the cat or resonator being plugged up would put the extra strain on the engine and make it squeal? i go to maine maritime and i cant drive home until this is fixed!!
thanks.
If your cat was clogged up, you would be throwing a CEL due to the O2 sensor reading it. If your O2 sensor wasn't working, you would also be throwing out a CEL. Have you ever cleaned or replaced your Vtec solenoid recently?