#08 kia spectra how to#
The downstream sensor is especially susceptible to this problem Here’s how to find a short in the wiring harness (Youtube). This is due to the fact that O2 sensors are under the chassis where they are subject to punishment from road debris, and they are subjected to a lot of exhaust heat. Wiring Harness Issues– The wiring that goes to the front and rear oxygen sensors is very susceptible to damage.
They are relatively affordable at Autozone or Amazon. Although it is a temptation to replace it right away, it wouldn’t hurt to check out the wiring harness around it beforehand. Bad Oxygen Sensor– The O2 sensor itself is one of the most likely reasons that P0139 is triggering your service engine soon light.They are presented in order (somewhat) of most to least likely to cause the problem.
#08 kia spectra code#
Here are the most common issues that cause the P0139 code in the Kia Spectra. That assumes that the sensor is functioning properly and isn’t the reason why the code was thrown.Ī poor air fuel mixture going through the catalytic converter can cause damage to it eventually. Often, the vehicle with P0139 will not pass emissions due to the higher levels of pollutants in the exhaust. In some cases, there can be other symptoms as well. Typically, the only symptom of P0139 is going to be the service engine soon light. Sensor 2 = Aft of the Catalytic Converter We’ll go over those below.īank 1 = Side of the engine with cylinder 1 in the firing order There are also some less likely problems that can cause P0139. When they take too long to respond, the ECM can no longer depend on that information to manage the mixture.
The Oxygen sensors are responsible for helping the ECM meter oxygen levels in the exhaust, and helping to to create the ideal air/fuel mixture. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels. P0139 is a common OBDII code that occurs in many vehicles, including the Kia Spectra.
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