2000 Grand Cherokee Jeep Evap code

I have a 2000 Grand Cherokee Jeep 2WD. I had my “check engine light” looked at by a car repair shop. They told me that I had an Evap code of P0043. The mechanic said that the price would be around $300 to replace canisters, etc. Is this a good price? and what are the problems that this could cause with my car if it is not taken care of?

Response:
$300 for the O2 Sensor is a bit steep.. but as far as what happens if you do nothing, the good news is, nothing. The light will just be on. This o2 sensor just moniters the function of the Catalytic converter and has no bearing on fuel mileage or driveability of the vehicle and is only on there because our government says it has to be. You can drive it forever with out this particular part being replaced.

P0043 HO2S Heater Control Circuit Low Bank 1 Sensor 3
Symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

Possible causes

- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit poor electrical connection
- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit fuse
- Faulty Engine Control Module (ECM)

Tech notes

The code means that there is a problem with the READ MORE