Replacing the oxygen O2 sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. The repair may take approximately thirty minutes to complete depending on the service workload at your Mazda dealership. The following additional components have to be considered or tested: the spark plug; spark plug wire or plug boot which could be leaking to ground; valve cover could be leaking oil into the spark plug holes and shorting the spark plug to ground; and power supply to the ignition coil. There are very few things I dislike about this van. This vehicle has been working almost perfectly for around 5 years for me now.
I yesterday got a code P0031 for some reason pending then this morning I checked it and had the on because of the P0431 code and now P0031 code. As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase. It is possible the soldering strength on a terminal in the fan control module may be insufficient, causing a crack during use. I suggest starting with these links: and subsequently searching for all of the following terms P0421 antifouler I have seen many reports on different forums indicating that this procedure works. Smell has been fine ever since. If that is the only code you are getting and the car has high mileage 90k + , the odds are in favor or the front pre-catalyst needing replacement.
Fuel economy was a reasonable 18 mpg in the city and 25 mpg on the highway. Only give advice on something you believe to be true. We are also pleased with the gas mileage. We love that it's trim looking but seats seven, and we appreciate having a roof rack. You have spent quite a bit of money and still have the problem. And once on, it seems to sit there pretty well while you put your socket extension onto the wrench.
The car drives really well and handles great even for a larger vehicle. If you are the recipient of this notice, your vehicle is included in this program. We're not super strict here, but for most of our posts we follow a question-response format. Overall, the price was great, too. If this failure occurs, the cooling fans may stop operating, causing the coolant temperature to rise, or the cooling fans may continue operating and may drain the vehicle's battery.
This is usually caused by fuel injectors, or a leaky manifold. At the conclusion of that, the Mechanic will let you know specifically which components are faulty, thus causing these codes to be set, and itemize for you the required repairs and the cost. Once, when I was driving this vehicle around the block, I made a terrible decision and decided to try to rush through a light that was clearly just about to turn red. The seats were very comfortable. You probably got a triple code code that said something along the line of Bank 1 not optimal or something like that. In 2002, Mazda responded by introducing a 3.
Possible Solutions Inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2. We apologize for any inconvenience that this program may cause you and your customers. I can't even remember exactly what it took to put the seats back up. The emissions decal under the hood will tell you. This vehicle has been working almost perfectly for around 5 years for me now.
The motor mount can be visually inspected and tested; they should have been able to give you a conclusive answer as to the condition of the motor mounts. I did everything from underneath. Standing by for any further input! Sincerely, Mazda North American Operations. I used a socket instead. Contributing posters are people who regularly post worthwhile advice. After a few years, I decided to simply replace the sound system with an aftermar. P0421 code is that the cat.
Obviously the converter and the O2 sensor did not need replacing. If it's got wheels, treads, floats, flies, or has an engine you're good to go. If it sees little or no effect o the exaust gases that have passed through the cat, then it decides that the cat is not working anymore, ad sets a P0420, or a P0430, depending on which bank it is. If this failure occurs, the cooling fans may stop operating, causing the coolant temperature to rise, or the cooling fans may continue operating and may drain the vehicle's battery. Click here' and select the option for Solved and save. Since P0345 refers to a circuit issue, get the wiring diagram and check the circuit before assuming you have a bad sensor. If you have any doubt as to repairs on your vehicle, please contact your technician.