Codes P0430, p030 with a blinking check engine light and VSC light turned on

2011 HONDA ODYSSEY

180,000 MILES • 3.5L • 6 CYL • 2WD • AUTOMATIC

JEREMY HARAKAL

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2 POSTS
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I am currently having issues with the van listed above. I had recently replaced my alternator with a rock remanufactured alternator due to VSC, check engine light, check battery voltage light. Once the alternator was replaced after 3 days all the engine warning lights cleared up. the only issue was when a code scan was run i was getting an cylinder 1 misfire P0301. over time my i was receiving an P0430 (Check emission systems) code along with p0301 code. Now i have the same codes, but a blinking check engine light and VSC light turned back on. I have a rough idle now too. I am attaching the information i am receiving from the sensor in a csv file, i am attaching a pre-blinking check engine light and post blinking check engine light.
Today my VSC light shut off and i haven't had a blinking check engine light. i am still receiving the same codes. My next step is to replace the plugs. i have been tracking my sensor through torque pro. My catalytic temperature hasn't gone above 1500. i have been watching my 02 sensors, and other sensors.

Nov 30, 2020 at 4:52 PM

JEREMY HARAKAL

MEMBER
2 POSTS

I can send any of the sensor data that you would like in CSV form. I have torque pro automatically logging the sensor data when the car is running and torque is connected.

Nov 30, 2020 at 4:56 PM

ASEMASTER6371

CERTIFIED EXPERT
52,796 POSTS

Good morning,

The 301 is a misfire for number 1 cylinder. I would start by checking the compression to be sure there is nothing internally wrong with the cylinder.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

https://www.2carpros.com/articles/how-to-test-engine-compression

The 430 is for catalytic converter bank 2. The precious metals are worn out and the cat needs to be replaced.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

https://www.2carpros.com/articles/catalytic-converter-replacement

Roy

Warm Up TWC Removal/Installation

FRONT WU-TWC (Bank 2)

1. Remove the engine cover.

2. Remove the front A/F sensor (Sensor 1) and front secondary HO2S (Sensor 2); 5-speed A/T model, 6-speed A/T model.

3. Remove exhaust pipe A See: Exhaust Pipe > Removal and Replacement > Exhaust Pipe And Muffler Replacement.

4. Remove the EGR pipe See: EGR Tube > Removal and Replacement > EGR Pipe Removal/Installation.

5. Remove the front bumper See: Front Bumper > Removal and Replacement > Front Bumper Removal/Installation.

6. Remove the A/C condenser See: Condenser HVAC > Removal and Replacement > A/C Condenser Replacement.

7. Remove the radiator See: Radiator > Removal and Replacement > Radiator Replacement.

8. Carefully remove the front WU-TWC.

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9. Carefully install the front WU-TWC with a new gasket and new self-locking nuts. Tighten the nuts in a crisscross pattern in two or three steps.

10. Install the parts in the reverse order of removal.

11. Install the radiator See: Radiator > Removal and Replacement > Radiator Replacement.

12. Install the A/C condenser See: Condenser HVAC > Removal and Replacement > A/C Condenser Replacement.

13. Install the front bumper See: Rear Bumper > Removal and Replacement > Rear Bumper Removal/Installation.

Images (Click to enlarge)

Dec 1, 2020 at 2:58 AM