O2 PROBLEMS for a 1999 Tahoe

My Tahoe keeps burning out the Oxygen sensor (right side)(front). And the plugs on the right side is smogged and the BLACK smoke starts.

I can change the oxygen sensor and it will run for about 2000 miles and then the same thing over again. C E L comes on and the rough idleing and rich fuel smell.

Any suggestions? thanks

My Tahoe keeps burning out the Oxygen sensor (right side)(front). And the plugs on the right side is smogged and the BLACK smoke starts.

I can change the oxygen sensor and it will run for about 2000 miles and then the same thing over again. C E L comes on and the rough idleing and rich fuel smell.

Any suggestions? thanks

I'm wondering if you have a cat converter problem?

My Tahoe keeps burning out the Oxygen sensor (right side)(front). And the plugs on the right side is smogged and the BLACK smoke starts.

I can change the oxygen sensor and it will run for about 2000 miles and then the same thing over again. C E L comes on and the rough idleing and rich fuel smell.

Any suggestions? thanks

first off right side is unclear...if this is the drivers side I would remove the vacuum line to fuel regulator if you smell/see gas replace regulator....

arkansawman33,

My Haynes manual doesn't explain in enough detail for me to diagnose your problem.

You'll need a qualified tech to help so you don't throw the wrong parts at it.

I was just guessing when I mentioned the faulty cat converter. Sorry I can't be of better assistance.