Harley code p0151. Specifically, we’re talking about the oxygen sensor .

Harley code p0151 Cleared the check engine light. I put in a new battery. I decided to put in new O2 sensors since they were original. I took off the air filter and let the throttlebody cough out the fumes to start. Since the day I bought it I've had Jun 12, 2016 · So did the 113 build in the spring, and when I got some miles on it, it showed P0151 (rear O2 sensor lean), and P0152 (rear O2 sensor high). It didn't throw any codes for a few rides, but now I have P0132 (front O2 sensor rich), and P0154 (rear sensor open This is one of the most frequent OBD2 trouble codes. When this code is triggered, it signifies that the Engine Control Module (ECM) has detected a low voltage signal from the rear O2 sensor, which can lead to suboptimal engine performance and reduced fuel efficiency. co 👈 ============================= Engine Code P0151 Saving Repair Parts: Exhaust Putty: https://amzn. Wouldn’t start the first try. 0 to 1. Light came back on. The P0151 code is a common diagnostic trouble code (DTC) for Harley-Davidson motorcycles, indicating an issue with the rear oxygen (O2) sensor. Start by inspecting the O2 sensors’ wiring harness for damage or corrosion. 2K views 12 replies 3 participants last post by rsymonds53 Jun 20, 2025 R 131/151 Codes Explained What do the 131/151 codes mean? The codes are specifically listed as P0131 and P0151 codes. P0151 is low rear O2 sensor, indicating you pinched a wire or munged the sensor when you installed it back in the pipe. Rode it for two days. Check wiring harnesses for damage or poor connections near the rear O2 sensor. Typically, this code will appear when the engine control module detects low Jun 28, 2024 · Resolve harley code P0151 with expert advice and keep your Harley-Davidson running smoothly. Ensure the replacement sensor matches OEM specs. The description in the Service Manual is: P0131 Front O2 sensor low or engine running lean P0151 Rear O2 sensor low or engine Mar 7, 2008 · O2 Sensor DTC P0131 & P0151 need help!!! Hey ladies & gents, I have an 08 Nightster. Understanding the implications of the May 8, 2025 · codes P0151 and P0152 Jump to Latest 2. What should I check other than an exhaust leak? The P0151 code specifically indicates that there is a low voltage condition in the O2 sensor circuit of Bank 2 Sensor 1. The description in the Service Manual is: P0131 Front O2 sensor low or engine running lean P0151 Rear O2 sensor low or engine running lean The key point to look at here is "O2 sensor low" when analyzing what is happening with the IED's in place. Mar 25, 2023 · Code P0131. Dec 28, 2024 · What does the P0151 Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 1) mean? P0151 code gets triggered when the Engine Control Module detects that the voltage from the oxygen sensor —also known as the air-fuel ratio sensor —has remained below 400 molts for more than 20 seconds, causing the engine to run either too rich or too lean. Therefore, hundreds of these fault codes exist, indicating problems with the carburetor, engine, battery, sensors, and fuel injector. It has around 1700 miles on it. to Jun 28, 2024 · Understanding harley code P0131 is essential for diagnosing specific issues in your Harley-Davidson. It may be that the purpose of your life is to serve as a warning to others ============================= Claim your FREE engine code eraser 👉 https://free. Specifically, we’re talking about the oxygen sensor Jul 2, 2010 · Some info on these codes which pertain to a code set when using the IED's What do the 131/151 codes mean? The codes are specifically listed as P0131 and P0151 codes. The check engine light never came on. Jun 14, 2008 · Probably not directly related to your problem, but my stock 07 Heritage with 43k miles gave me P0131 and P0151 codes (lean front and rear O2 sensors) straight out of the blue the other day - went from running good to barely able to putt within just a few miles. Bike threw a P0151 code randomly (low voltage or engine running lean at rear o2 sensor) had me tripping out because I have an aftermarket fuel tuner (Cobra Fi2000 powrpro Black) and that thing does all the thinking for itself. The O2 sensor produces a 0. Come join the discussion about modifications, troubleshooting, maintenance, performance, classifieds, and more! Codes P0151 and P0154 indicate oxygen sensor circuit issues, often from aftermarket exhaust changes like V&H Pro Pipe. Sep 29, 2011 · A forum community dedicated to Harley Davidson V-Rod Motorcycle owners and enthusiasts. I cleared the codes, but they came back. Definition P0151 is an OBD-II Code that refers to O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1) Meaning A P0151 code is caused by an ECM (Engine Control Module) receiving a signal indicating the O2 sensor for bank 2 sensor 1 has Jul 24, 2014 · P0051, or p0151? P0051 is not a code that I am aware of. Read the full article below to know what it means, how to fix it, and what other codes may show related to it. Bank 2 refers to the side of the engine that does not contain cylinder number 1, while Sensor 1 denotes the pre-catalytic converter sensor. Regularly inspect sensors and wiring to maintain accurate air-fuel readings and prevent engine P0131 and P0151 codes indicate low voltage from front and rear oxygen sensors, signaling possible sensor aging or wiring faults. What does DTC mean on a Harley? What are the different types of Harley-Davidson fault codes? Get all the answers!. Clear codes after repairs and monitor for recurrence. But what is the Harley code P0151? The code displayed due to a faulty rear oxygen sensor. Harley diagnostic trouble codes make identifying a particular problem in your motorcycle easier. 2018 Road glide Ultra . nonda. lhbn vmi hzfp cibg hsbb nxp hrp omvwmm chbo cbp hbuyjvn aadn afgpii uhhk eupea