I recently bought this Is250 and now have a check engine light that popped on. Here’s what I got from auto zone any suggestions on what to do here?

Also don’t mind the odometer the actual reading is 86415

 

Well, the AutoZone paper suggests replacing the Mass Airflow Sensor. But I mean.......

9 codes....Let's simplify this:

P0101......When the engine is running rich, this code means that the throttle body is not flowing a sufficient amount of air to achieve a 14.7:1 A/F burn ratio.

P0172 and P0175.....These two codes = 1 symptom, which is: The engine is running rich because the engine is getting too much fuel. One source of fuel (besides the gas tank) comes from a component called "EVAP Charcoal Canister".

P043E and P043F....These two codes = 1 symptom, which is: The PCM cannot control the amount of fuel vapor flowing thru the leak detection pump orifice. This leak detection pump is attached to the EVAP Charcoal Canister.

P2401 and P2402 These two codes = 1 symptom which is: The PCM quit trying to operate the leak detection pump therefore, it's operation is stuck off AND it's stuck on.....thus, cancelling out the respective operation of this component. Again, this part is attached to the EVAP Charcoal Canister.

P2419....The symptom of this code is: The Evaporation emissions pressure switching valve is stuck on (open). A hose connects this valve to the EVAP Charcoal Canister.

P0456........Most people think when the Engine Light turns on with any type of EVAP leak code, they automatically think an intake gasket is broken, or a vacuum tube is cracked or damaged or the gas cap needs to be replaced or blah, blah, blah. These people don't understand how an EVAP system operates.......Any time you have a leak code along with a rich code. These two codes together rule out any external EVAP leak and confirms an internal EVAP leak.

Gasoline enters the tank thru three locations. One location is (obviously) the gas tank filler neck. Another location is the fuel return line from the engine and another location is from the EVAP Charcoal Canister.

Liquid gasoline enters the engine from the gas tank.

​​​​​​Vaporized gasoline also enter the engine to be burned. This vaporized gasoline comes from the EVAP Charcoal Canister.

The EVAP Charcoal Canister is basically a filter. It's job is to receive air from the tank and collect the gas vapors from this air. The air is then pushed back into the tank. The vapors collected in this EVAP Charcoal Canister will be pushed into the engine to be burned.........there are times when these vapors become so concentrated that they actually turn back into liquid gasoline (within the EVAP Charcoal Canister). When this happens, the gasoline is sent back into the tank to be circulated again.

In the event that the EVAP Charcoal Canister gets filled with gasoline, it can't filter vapors nor send those vapors into the engine. Instead, what it does is it (drum roll, please)..........sends raw fuel directly into the engine to be burned with the gas sent from the tank (but since there's not enough oxygen to burn this extra gas (P0101) the raw fuel passes into the exhaust system (P0172 and P0175). The computer constantly tries to correct the rich situation by venting the fuel tank pressure (P2419), but every time it vents, it's running richer therefore there must be a leak (P0456) someplace. Eventually, the computer stops trying to make adjustments (which are the rest of the codes) and deadens the A/F ratio voltage readings at .450v in an attempt to achieve that critical 14.7:1 burn ratio.

It's my opinion that you need a new EVAP Charcoal Canister........but do your own research and make a determination for your self.

A couple symptoms of bad EVAP Charcoal Canister is extremely poor gas mileage. Like let's say your car should have 300 miles range on a full tank of gas, but it already hits empty after you've only driven 200 miles.........Or let's say you're filling up gas into the tank and the station pump keeps clicking off unless you hold the nozzle in a certain position while pumping. There's more symptoms relating to a bad EVAP Charcoal Canister, this is just two examples.

Research!

 

Definitely going to do some research. I don’t know much about cars but don’t have an arm and a leg to take it to a shop. But so far from what you said everything is pointing to the charcoal canister. All these codes could be coming from the one issue correct?

 

How old is your air box filter? Once the running rich codes pop. They require a ECU reset to wipe the fuel trims. Also try to clean the MAF sensor first with CRC MAF cleaner. After reset the ECU. Last is there any water getting into the air box? Mine was doing this with the Fsport lower airbox. For now I'm running back the OEM lower.

 

I replaced the air box filter as soon as I bought the car. Will definitely try cleaning the maf sensor this evening. Will keep you updated thanks for the help.