Paid 1438.00 for cat sensor bank one and two was that to much?

Took my Tucson to local mechanic paid 1400 dollars for cat censor bank 1 and two did I pay to much? Also a tune up.

My car has 90000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello Laura. Without having a detailed invoice as to what repairs, labor and service was completed recently on your Tucson, it’s hard to tell you whether or not your cost was excessive. I can say that most local shops and dealerships charge about 30 to 50% more than our mobile mechanics at YourMechanic.com for the same services. Next time you need any service for your Hyundai, please contact our team to get a price estimate.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The Sensor 2 in question means that it is the sensor that is located behind your catalytic converter and the Bank 2 side of the engine is the side that does not contain the #1 cylinder.
Whenever the P0136 code appears, the ECM has determined that Sensor 2 located behind your car`s catalytic converter is malfunctioning. Sensor 2 on the Bank 1 side means that it is located on the side of the engine that contains the #1 cylinder.
The average cost for a Hyundai Tucson Oxygen Sensor Replacement is between $276 and $312. Labor costs are estimated between $46 and $57 while parts are priced between $230 and $254.
Sensor 1 is the upstream oxygen sensor. It is the sensor that measures the oxygen content in the exhaust, providing an input to the computer, which determines how to adjust the air/fuel ratio. Sensor 1 is the sensor closest to the engine. Sensor 2 is the downstream oxygen sensor.
Typically, a front (upstream) O2 sensor 1 that is functioning properly will be switching from rich to lean at a fairly steady rate, creating a wavelike formation. The voltage generated from the O2 sensor should be from 0.1V to 0.9V, with 0.9V on the rich side and 0.1V on the lean side.
Also known as the O2 sensor because O2 is the chemical formula for oxygen, the oxygen sensor monitors how much unburned oxygen is present in the exhaust as exhaust exits the engine. By monitoring oxygen levels, the sensor provides a means of measuring fuel mixture.
Bank 1 and bank 2 simply refer to either side of the engine. Check your owner`s manual or a service manual for a positive location of bank 1 and bank 2. Most commonly, bank 1 houses the front most cylinder on the engine cylinder 1, and bank 2 is the opposite side of the engine.
Bank 2 Sensor 2 means Downstream Left/Front. Many buyers brought the wrong Oxygen Sensor because they donot pay attention to the plug and the length of the sensor. Please check these 2 features before purchase.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Paid 1438.00 for cat sensor bank one and two was that to much?
ANSWER : Hello Laura. Without having a detailed invoice as to what repairs, labor and service was completed recently on your Tucson, it’s hard to tell you whether or not your cost was excessive. I can say that most local shops and dealerships charge about 30 to 50% more than our mobile mechanics at YourMechanic.com for the same services. Next time you need any service for your Hyundai, please contact our team to get a price estimate.

check engine light read mass air flow sensor
ANSWER : First of all, cleaning a mass air sensor may not have fixed the sensor and O2 sensors cannot be cleaned. The O2 sensors for bank 1 and bank 2 means that the left and right side of the engine. You have one sensor just below the manifolds on each side of the motor and then sensors after the catalyst. There may be more than three or four sensors on the truck depending on if you have dual exhaust catalyst or not. Each sensor will have a specific code that relates to it in the computer when a failure happens. Your O2 sensors may only be telling you that you are running too lean on both banks of the engine and may have a mass air sensor or fuel injection fuel flow problem that is the cause. Have a mechanic properly diagnose the Check Engine Light before replacing or cleaning the sensors to try and fix the issue. A qualified mechanic will have to do the pinpoint tests to isolate the cause. This will save you money in the long run by not replacing parts that are not needed.

My car is lean on bank one and two. Are the oxygen sensors bad?
ANSWER : It is certainly possible that the (pre-cat) O2 sensors were leaning the engine out. It is also possible there is a fuel supply issue: clogged fuel filter, weak fuel pump, fuel pump relay with burned contacts, or a fuel pressure regulator. Engine management tends to do everything it can to protect the catalytic converters, and a lean mix is the preferred default – rich will clog the cats.

I would recommend checking fuel system for proper pressure under running conditions and replacing the pre-cat O2 sensors, especially if they are the originals. I recommend having a certified mechanic, such as one from YourMechanic, come to your location to determine why the truck is losing power and make any necessary repairs.

How do I know I have two resonators? Can I have two mufflers in each side with one resonator? Which side is most important? Thank You.
ANSWER : You may have a single small resonator in the middle of the car that splits to the two mufflers. One on each side with single or dual tip outlets. The two mufflers are equal to each other to exit the exhaust flow. For more concrete advice, I’d recommend having an expert technician check out your specific muffler situation in person. A technician from YourMechanic can come to your home or office inspect your exhaust system and assist with any repairs that are needed.

Can i use gm part 55591002 for both sensors?
ANSWER : Hi there. Sometimes the material of the contact on a sensor can produce a false reading or not correctly connect to the electrical harness; so if your trying to test the sensor to see if it works, and the OEM sensor is made of a different component or designed for a different use, it’s probably not best to try that. I’m not sure if it would negatively impact the ECU, but I have seen stranger things cause communication errors.

Hello. I have to replace both the bank 1 and bank 2 cat. Does bank 1 and 2 refer to "right" and "left"? Thanks
ANSWER : Yes, bank 1 and bank 2 is the same as left and right. Bank 1 is the right side of the engine and bank 2 is the left. Before purchasing and replacing the catalyst, you should have a complete diagnosis of the codes you are receiving from the engine computer. You may need to do additional repairs before the catalyst is replaced or damage to the new catalyst may happen. I recommend having a mechanic verify the computer systems are clear of any problems before you can install the new catalyst. If you would like to have the car checked, a qualified professional from YourMechanic can verify the issue and move forward with any needed repairs.

Bank 2 Sensor 1 PA03(?) code. Range performance issue?
ANSWER : Hello. The code you have provided is not a valid automotive error code that I recognize. Based on your context I think it may be possible that there is an issue with the signal range of one of your oxygen sensors. If you’ve replaced the sensors then perhaps the issue may be with the wiring. I would carefully examine the wiring to the oxygen sensors, as well as the connector and contacts for any signs of damage, wear, or corrosion. If the sensors and wiring all check out then it may be possible that the issue is with the computer.

I don’t know if I have two mufflers or one if I do have one what does the other one do ? Thank you.
ANSWER : When you look under the back of the car and you see only one pipe out the back then you have only one muffler and a resonator. The resonator is near the back and is used for lowering the exhaust noise more and giving it a better tone. If you see two pipes out the back then you may have only one muffler but two resonators. Next time you have a service done, then ask the mechanic to see what you have since there are different models of Accords and they may have different exhaust configurations.