Subaru Wrx Sti P0139 Engine Error Code

When you check Subaru Wrx Sti car engine light came on code P0139 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Subaru manufacturer may have a different definition for the P0139 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

A good ground connection is also extremely important. P0139 Subaru Wrx Sti engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).

Subaru Wrx Sti P0139 OBD-II Diagnostic Powertrain (P) Trouble Code Description Subaru Wrx Sti car P0139 OBD-II Trouble Code The Heated Oxygen Sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) Reason For Subaru Wrx Sti P0139 Code The reason of Subaru Wrx Sti P0139 OBD-II Engine Error Code is P0139 O2 Sensor Circuit Slow Response Bank 1 Sensor 2.

The P0139 Subaru Wrx Sti Check Engine lamp is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks P0139 Subaru Wrx Sti with your car's computers to find out exactly what's prompting the light to turn on.

Subaru Wrx Sti P0139 Possible Solution :

What does fault code P0139 mean for Subaru Wrx Sti ? What does a diagnostic reading P0139 mean for Subaru Wrx Sti ? How to fix OBD2 Code P0139 for Subaru Wrx Sti ? What do we know about P0139 code for Subaru Wrx Sti ?