P0133
P0153
P0420

What are these codes for?
Are they serious? ( will it hurt to drive the car? )

The car runs great! But I did do some exhaust work a few weeks ago.

 

133- 02 sensor CKT slow response (bank1 sensor 1)
153- 02 same (bank2 sensor 1)
420- catalyst efficiency below threshold (bank 1)

 

Ok, thank you. Will it hurt the car to drive it w/ those codes?

 

Most solid codes are emission related and will not likely hurt the car for short trips. Since you read the codes, did you also clear them?
P0133P0153: Possible fault cause: Oxygen sensor is dynamically inert
P0420: Possible fault cause
♦ Oxygen sensor ahead of and after TWC exchanged
♦ Valve lift fault
♦ Aged oxygen sensor after TWC
♦ TWC faulty

 

Yes I cleared them. Thanks for the info. I did some exhaust work and I'm sure this is why I have them. I'm interested in seeing how long it takes to get the codes again. Thanks again.

 

they will come back very very soon...
You need a flash that turns off the post 02s off...

mark

 

Thanks Mark, I figured that. My impression from TK is that it won't hurt the car, also that I needed a tune to get rid of them.
Don't worry, I just did a little mod myself while I'm saving for Proto tune and a real exhaust.

I hope all is going great for you and your shop. You should come to Porschepalooza on Nov 12-14th. Only about 60 miles from Harrison.