Unfortunately, you are getting P0170 and all you really know is that it is something different than P0171 or P0172, it is probably related to the Oxygen levels measured at the O2 sensor. And if it does, the DTC code system is ready for it. I don’t think any such design currently exists. My guess is that the guy at EPA who drew up the list intended for P0170 to cover emission control systems that could detect a bad mixture, but didn’t really know if it was too lean or too rich. The EPA defining voltage levels, failure counts, etc would cause no end of grief. Different engines and emissions control systems run a bit differently. At some level, exactly what a code means on a given vehicle is up to the manufacturer – which is more reasonable than it sounds. They apparently presented the car manufacturers with a list of codes and a dictate that if the car-mongers expected to sell 1996 model cars, they would check for whatever codes applied to their engine design and report them. Which, of course, you can’t do.īackground: These OBD codes were dictated by the EPA back in the early 1990s. Why not P0171 – fuel mixture too lean? Or P0172 – fuel mixture too rich? Probably, you’d have to ask whoever wrote the code. Regretably, P0170 seems to be a kind of nebulous code that seems to mean that the fuel mixture is too lean, or too rich, or whatever else the programmer wants it to mean. Walker Products 200-1224 Throttle Position Sensor*** What are the most common causes of a po170 fuel trim fault? Obviously, the dealer does not want to–or cannot–say what the leading caused of this fault are.Walker Products 200-1225 Throttle Position Sensor.Walker Products 200-1147 Throttle Position Sensor.Walker Products 200-1145 Throttle Position Sensor.As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. ![]() Each sensor undergoes rigorous end-of-line testing with thousands of data points to validate output voltages for optimum performance and trouble-free operation. Each TPS uses integral rotor bearings and return springs for easy installation. Noble palladium/gold/platinum alloys provide low contact resistance for extended service life. Circuits are printed on flexible polyimide film or ceramic-based substrates for excellent dimensional stability preventing electrical performance drift. Our Throttle Position Sensors maintain specific installed outputs to match OE rather than adjustable consolidated designs.As an ISO 9001/IATF16949 certified company, we are committed to supplying the highest quality products. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. Walker Products began supplying the fuel system needs of the automotive industry in 1946.CA_Prop65_Lead: Warning: This Product Can Expose You To Chemicals, Including Lead, Which Is Known To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm.The computer uses this and other inputs to calculate the correct amount of fuel delivered. Throttle Position Sensors measure throttle position through changing voltage and send this information to the onboard computer.Walker Products 200-1247 Throttle Position Sensor.
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