Hey everyone, I have a 2007 dodge ram 1500 through the 4.7L v8 in it. I am having an problem that i am hoping the someone with more knowledge can help me with. I recently got the password p0430 examine engine light come ~ above in mine truck. The password is because that inefficient catalytic converter financial institution 2. After talking to lot of sources and also doing research, everyone claimed that there is a 90% chance that the converter is bad and also would should be replaced. I replaced the converter and the password came back on the same day. I furthered investigated this issue by making use of my scanner and also looking in ~ the voltage that the 02 sensors on both banks of mine exhaust. Once I did this, ns noticed the my downstream sensor on financial institution 2 was exhilaration weird at start up and also while control it. The downstream sensor has actually the same voltage together the various other sensor before I begin the truck, but once I start the van the sensor loses many of that voltage in ~ a minute or so. Periodically the sensor with show 0.035 or therefore volts but nothing compared to the same sensor on financial institution 1 i beg your pardon is .685-.7 ish. Once I drive the van on the federal government the sensor will sometimes display flashes of the working......if i accelerate on the throttle it will certainly jump up and match the financial institution 1 sensor 2, however then it will fall earlier down. The upstream sensor is working in the very same fashion as the financial institution 1 upstream sensor so it deserve to not be the sensor causing the issue. I figured that I have a bad 02 sensor due to the fact that I am losing voltage at startup for this reason I changed the financial institution 2 sensor v a brand-new one. Ns drove that on the interstate and it tho did the same thing......I had a live data graph in this post to shot and display what is walking on....the check engine light did not come earlier on yet it did same "pending code" on my scanner and it to be the same p0430 code.....It is now clear to me the there is a interaction problem v the pigtail that connects to this sensor. There is one of two people a problem with the computer on the truck v this sensor (which appears unlikely to me since every one of the various other three sensors work) or over there is a trouble with among the wires going from the computer to the pigtail. The does not show up to have any type of cuts or burns in the wires as far as I can see.I am not sure what I must do next.....I execute not know where/how to check the wires or view where the soil is for the pigtail.


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I have tried to find more information but have had no luck. I carry out not want to take it it come the dealer and pay a most money to just have actually them look in ~ it....they will probably assume its a bad computer and also charge a the majority of money to change it..Some help in the best direction would certainly be great! many thanks so much!