No, there is no link between the two.
Yeah, you can't beath.
A faulty EGR valve can cause a 98 Chevy to fail a smog test. The oxygen sensors should also be tested as they can also cause a 98 Chevy to fail a smog test.
The oxygen sensor that typically fails is attached to the exhaust manifold, just above the headpipe. It looks a little like a sparkplug, and has an electrical connection. The OTHER oxygen sensor is behind the catalytic converter.
Once the oxygen sensor fails, the computer drops back to a much less efficient mode of operation. Running with a failed Oxygen sensor, you'll use more fuel and if your state/city requires an emissions test, the vehicle will fail. Oxygen sensors come in many varieties, and if the heater fails on a heated oxygen sensor it will not function properly. Yes, Oxygen sensors are expensive. But recognize that by converting to computer controls you now have an engine that needs tune-ups MUCH less frequently. Routinely take care of the components as they fail and as a general rule, the engine will not only last longer, you'll get better fuel economy.
An executor who fails to act properly should be reported to the court immediately, removed and replaced. You should be prepared to provide the court with evidence of the misbehavior.
replace it
When someone/something inhales, oxygen is brought into the lungs. There, the oxygen and other molecules are processed and put into use immediately and circulated throughout the body via red blood cells. Without oxygen, the body fails and the animal dies.
Replace intake manifold water temp. sensor that's by the thermatstat housing. Next replace your oxygen sensor ---they are 80% of flooding problems,If that fails Check your TBI sensors,egr
I do not know the complete answer. Usually, as the oxygen sensor is failing, it will cause the car to run rich, so that your exhaust gets blacker. If it totally fails, then the computer will go into a default mode (limp mode), and without having feedback from the sensor, it will make the car run at a fixed rich setting, again making the exhaust blacker. I am also hunting for an answer since my car is stalling and the check engine indicates a faulty downstream oxygen sensor. Since it is $85, I would love not to have to replace it. yes an 02 sensor will make a car stall replaced both on my 2000 zx3 now fixed much better gas millage to
If the upstream sensor fails (forward of cat) the engine will run either rich or lean and have rough idle poor fuel economy and possibly set a failure code (but not always) If the downstream sensor fails it could possibly set a catalyst failure code when the sensor itself has failed in actuality instead of the converter. Bottom line is codes are guide lines and starting points for diagnostic TESTING if you want to spend a lot of time and money then go ahead and replace parts based on failure codes. Anytime you have o2 sensor code failures run a diagnostic scan and watch real time data stream and watch the activity of the sensor (all of them) you want to see fast changes (rich ..lean ) or voltage values depending on how your scan tool reads and displays info. slow reading / changing sensors are borderline failures and should be replaced. no activity is also a failure.
More than Likely its a coroded connector at the sensor.
Only when it fails.