Check engine light is on on 2000 Mercury Cougar

I have been told this could be a "tube" stoped up in the motor. Has anyone had this problem before? The codes are T0420-CAT and t0401 EXTT or EXH GAS

by in Cullen, VA on February 08, 2010
1 answer 2 comments
ANSWER by , February 08, 2010
Can you provide us with the code that caused the light to come on? Are yo talking about an EGR tube?
COMMENT by , February 08, 2010
The codes are T0420 and T0401
COMMENT by , February 08, 2010
The P0401 code can be from a plugged EGR tube or port, however I don't know if that will cause the P0420 code. Here is some info for both of the codes: