Permanent Catalytic Converter P0430 Code

[nolahusker]

I am new to this forum and did some searching but haven’t found a topic on this. It may be that my Google-fu is weak, but, if so, maybe someone can point me to the right thing. 

 

Anyhow, I am getting a permanent engine code of P0430 on my 2013 Edge Limited (3.5L). My OBD2 reader (Innova 5210) is telling me this is a catalyst system efficiency issue on Bank 2. I, for the life of me, can’t figure out why I would have this. Some background:

 

Last year, I replaced all the injectors, plugs, and coil packs and the catalytic converters. I did this because I had a couple coil packs fail on me and an injector going out, plus a catalytic system efficiency code. This was about 20,000 miles ago. The vehicle has 197k miles as of today. I did use aftermarket catalytic converters off Rock Auto (Original Performance models OPCF5071 and OPCF5072), Bosch injectors, and Motorcraft coil packs. I started getting the P0430 code about 2 weeks ago, then got a coil pack code and misfire code for cylinder 6 a few days ago. I pulled the coil pack for 6 and it was physically toast (shaft of the injector was swollen and cracked). Replaced the coil pack and the plug, cleared codes, and everything ran just fine. No new codes. My wife was driving and had the check engine light pop on and I’m getting the P0430 code again (see below). 

 

I used the OBD2 reader to plot performance of the O2 sensors and converters as shown below. I’m not seeing anything in particular that’s making me think I have an issue. Anyone ever run across this before? I don’t want to damage my new(er) injectors, coil packs, and plugs, but I will replace anything as needed.  

 

Any insight anyone can provide would be helpful. The vehicle drives just fine and I drove it at 78 mph on cruise control for about 70 miles today.  I’m just concerned about damaging other components if I have a bad converter. As far as I can tell, the sensor readings are all normal. 

 

Codes:

I had 9 codes after changing the coil pack, including one about saturated O2 sensors (forgot to write it down), but I cleared them, drove around today, and still have these: 

 

1/3: P0430 (Permanent) - Catalyst system efficiency below threshold (Bank 2) DTC Severity 2 of 3. Repair immediately if drivability issues are present. Threat to essential system components if not repaired as soon as possible. 

 

2/3: P0430 (Pending) - Catalyst system efficiency below threshold (Bank 2)

 

3/3: P0430 (Permanent) - Catalyst system efficiency below threshold (Bank 2)

 

Live data (max and min from graphing while driving):

O2 Sensor B1S2: 0.055 - 0.85V

O2 Sensor B2S2: 0.045- 0.85V

 

O2 Sensor B1S1: -0.14 - 0.05 mA

O2 Sensor B2S1: -0.05 - 0.24 mA

 

STFT B1S2: 99.2%

STFT B2S2: 99.2%

 

B1S1 Lambda: 0.995 - 1.009

B2S1 Lambda: 0.950 - 1.027

Note: both go to 1.999 when coasting at highway speed. 

 

Cat Temp B1: 925 -1520F

Cat Temp B2: 923 -1520F

Edited 6 hours ago by 1004ron