2003 Chevy Tahoe EVAP system and catalytic system inspectio

APPST8DESIGN

MEMBER
2003 CHEVROLET TAHOE

Computer problem
2003 Chevy Tahoe V8 Two Wheel Drive Automatic

I changed out 2 O2 sensors and my coolant temperature sensor because I was having problems with my check engine light, catalytic converter and it running lean. Now I'm trying to get it to pass inspection and after driving it 300+ miles I still can't get the evap system and catalytic system to be ready. I went to the dealership and they said it SHOULD have read the systems after around 50 miles. Any tips?

6 Replies

JACOBANDNICKOLAS

EXPERT

Was the light reset when the work was done? If not, have that done. Most nationally recognized parts stores will do it for free. After reset, see if it comes back on with the same or different code.

If the engine is still running lean, check for vacuum leaks.

Let me know what you find.
Joe

SPONSORED LINKS

Was this

answer

helpful?

Yes

Thursday, January 14th, 2010 AT 6:47 PM

APPST8DESIGN

MEMBER

Yes the light was reset, I reset it with an OBD ii scanner. I'm trying to pass inspection now and for some reason its not reading the evap and catalytic systems so they won't pass me at inspection.

Was this

answer

helpful?

Yes

Friday, January 15th, 2010 AT 7:03 AM

JACOBANDNICKOLAS

EXPERT

IT won't read it? That is odd. How many miles have you put on it since it was reset?

Was this

answer

helpful?

Yes

Sunday, January 17th, 2010 AT 12:10 AM

APPST8DESIGN

MEMBER

I've easily put 300+ miles on it since reseting the codes.

Don't want to take it to the dealer and have them look at it because all they will probably do is take it in the back, see that its not reading the codes, then charge me a load of money to tell me just that.

All the other systems are ready EXCEPT those two systems.

Was this

answer

helpful?

Yes

Monday, January 18th, 2010 AT 7:19 AM

JACOBANDNICKOLAS

EXPERT

Have you tried having it scanned at a nationally recognized parts store? They will do it for free. Also, if it is an evap code, you may have a leak. You may want to have the system fogged to see if that is the cause.