On your vehicle you have at least 2 oxygen sensors, one in front of the catalytic converter and one behind it. The front O2 sensor monitors the amount of oxygen coming out of the engine and going into the cat, this regulated how much fuel the engine gets injected into it. The downstream or rear O2 sensor checks to see if the level of oxygen coming out of the cat is different than what went in.
The code you are getting shows that the 2 oxygen sensors are reading the same. This is supposed to show that the catalytic converter is bad. If you take the car to Autozone, they will tell you that you need a new catalytic converter. More than likely, you can replace the front oxygen sensor and this code will go away.
The code you are getting shows that the 2 oxygen sensors are reading the same. This is supposed to show that the catalytic converter is bad. If you take the car to Autozone, they will tell you that you need a new catalytic converter. More than likely, you can replace the front oxygen sensor and this code will go away.
So I decide I will give her a tune up. First to get to the front o2 sensor on the 1.8 liter you have to pull the air box. I pull the air box and clean out the prefilter which gets the big dirt before the air filter. The I clean of the This was 3/4 of the way full. The I put in a new air filter and then I replaced the 02 sensor. While I am at it I figure I might as well replace the spark plugs. My old plugs were Bosch Iridium. They had 50k miles on them. I replced them with cheap autolite copper plugs. The copper plugs were only a buck a piece while the Iridium are $10-12 a piece. I also prayed off the MAF mass air flow sensor. This was actually still really clean but sprayed it anyway. My old spark plugs were still in decent shape. They all looked to be burning fairly even.
I put everything back together and she is running better. The mileage meter on the dash is showing approx 10 percent improvement in MPG. But she is still a dog. I am now more sure than ever the turbo is gone. My 16 year old is driving this car right now so I do not mind that it is slow. Might be for the best.
I just recently(October 2017) sold this car. It had 225k miles and still running strong.
I just recently(October 2017) sold this car. It had 225k miles and still running strong.
