Wrong O2 Sensor– If you are getting P0130 after having recently replaced your Oxygen sensor, it may be that the replacement is wrong or bad.Exhaust Leak– If the exhaust is leaking, then it’ll allow oxygen in that shouldn’t be there.Blown Heater Sensor Circuit Fuse– Here’s how to test if a fuse is blown (Youtube).You’ll want to make sure that there is voltage going to it. Damage to the Terminal– The terminal that the oxygen sensor connects to (the plug) is also relatively susceptible to damage.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 Damage– 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.
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