SPONSORED LINKS

2002 Chevy Tahoe Codes P0174 and P0300

Tiny
HACKDADDY
  • MEMBER
  • 2002 CHEVROLET TAHOE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 141,000 MILES
Initially I received codes for my oxygen sensors, I replace both of those on the bank 2 side. But, now I am getting codes 174 and 300 and the car is blowing black soot and smoking. I checked MAF sensor and it is working fine. Any suggestions?
Wednesday, September 1st, 2010 AT 8:58 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lean fuel condition could be caused by one of the following below:

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, September 4th, 2010 AT 6:35 AM
Tiny
DRUE
  • MEMBER
  • 1 POST
I know exactly what this is! I also have a 2002 Tahoe. I got the same readings and it was the catalitic converter! It had to be replaced and that fixed it. Glad I could help someone!
Was this
answer
helpful?
Yes
No
Tuesday, September 21st, 2010 AT 5:14 PM

Please login or register to post a reply.

Related P0174 Content

VIEW MORE

Sponsored links