2020年10月16日 · I had a code come up for my O2 sensor. I don't remember the exact code or what one of the 4 sensors it was for. Since then the code has gone away and after trying to read it again, my code reader hasn't come up with anything. I decided to watch the voltages while the truck is idling after letting it warm up.

2023年12月7日 · The O2 circuit is in open loop until both the engine and the sensor reach operation temperature, once those and other parameters are obtained then and ONLY then does the O2 circuit go into closed loop and provide feedback to the fuel system - prior to that time, it's the computer programming determining the fuel mixture.

2024年8月1日 · It states 25% which means based on the reading from the bank 1 O2 sensor it thinks the engine is running lean and demanding to increase fuel (richen up). If this reading is wrong, meaning the engine is running just fine but a bad sensor reading and demanding a lot more fuel, it would cause your issue.

2021年4月8日 · Pin 3 - O2 Return (Upstream or Downstream) - ? Pin 4 - O2 Signal - ? My questions are on Pin 3 & 4. Generally, 1 of these is a 0-1 volt output from the sensor since these are narrowband. Then the other is either a 12Volt or Ground for the sensor signal input. I'm wanting to prewire a harness to plug into the OE plug to deliver the O2 narrow ...

6 天之前 · I got my Dodge with no down stream o2. The wires might have been crossed but I finally dialed it in. I'm having an injector 3 code. Replaced it and ran the problem all the way to PCM. My live data is showing 0 volts to O2 sensors.At my fuse box. My O2 sensor fuse is only showing .9 of a volt. my fuel trims are at 0 for live data as well Any ideas

2017年7月12日 · P0138 O2 Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 2) P0037 O2 Oxygen Sensor Heater Control Circuit Low (Bank 1, Sensor 2) I guess I needed to be a little more specific. I am getting the codes above, and need to know …

2019年10月6日 · Working on 2011 ram 4x4 4.7l SLT HEATED O2 sensor issues All sensors have been replaced. Still have errors P0135 P0141 P0155 P0161 Have a few questions 1. Is there a fuse for this circuit 2. Is there a relay for this circuit 3. Does anyone have a wiring diagram I’ll be checking voltage...

2015年8月30日 · I have a 2003 1500 5.9. Posting here because 3rd gen engine forum area is 99% hemi and 4.7 talk. I am fixing plenum soon and want to replace 02 sensor(s). I have read just replace pre cat some people say to replace all of them though. I assume I only have 2, 1 pre and 1 post cat, I need to...

2016年12月26日 · This is another problem and i probably need to swap the sensor P0131 - P0137 - P0151 - P0157 This 4 codes above are problems with the O2 Sensor Heating Element, ans as far i found out, this can be a blown fuse for the O2 Heater Element. Unfortunately i am not able to identify the correct fuse as the manual only show the blade fuses,

Joined Jun 30, 2015 Posts 7 Reaction score 1 Ram Year 2015 Engine 5.7 HEMI