Bad cat?

[StreetStyleJPTI]

On top of my ongoing problems, I was just curious if a bad cat would cause my car to make an akward noise?

 

[satyr36]

could, would normally cause bogging and funny odor first

 

[StreetStyleJPTI]

The car is bogging. Its just the strangest sound.

 

[nycmsp718]

im having the same problem. and im getting a funny smell coming from under the car. and CEl PO103

 

[DiscreetSpeed]

A rattling sound is what ive seen a bad cat cause. After a drive see if the cats glowing red.

CEL P0103 = MAF circuit high input..possible faulty maf.

 

[StreetStyleJPTI]

I had the bad MAF a couple of months ago...and replaced it.

 

[ND4MSP]

would not building boost very fast be another symptom? I've got a MAM midpipe with a highflow cat, and lately I get a small backfire maybe once or twice a day. Maybe its on the way out. Normally you'd check a half dozen other things when your not building boost very well, but I wanted to ask how much of an impact it would have.