An O2 sensor allows your vehivle's machine to supply the prerrogative air-fuel brew.
There are indefinite reasons your vehivle's pc has thrown a heated O2 sensor (HO2S) P1131 regulation, indicating further even fuel going into the combustion chambers. In most cases, you can apply a general analysis to licence the dispute by cleaning or replacing one or enhanced items. HO2 sensors select a parcel of manipulate over the second childhood and you might chalk up to modify it. Much, in a infrequent minutes, you can recurrently restore your engine performance genuine in your own driveway and save on repair costs.
Instructions
1. Peep the vacuum hoses in your vehicle by tracing Everyone hose with your participation, looking for holes, tears, loose or disconnected ends. A leaking vacuum hose can introduce also even O2 and end a P1131 regulation.5. Unplug the sensor's electrical connector and unthread the sensor from the exhaust manifold or header pipe using an oxygen sensor socket and ratchet.6.
You can manually disconnect the valve and shake it. If you can hear it rattling, the valve is in good shape. Otherwise, clean it or replace it. If the PCV hose is blocked with gunk or torn, clean it or replace it.
3. Locate the primary oxygen sensor between the exhaust manifold and the catalytic converter, a box like component in the exhaust (header) pipe connected to the exhaust manifold. The sensor is about the size of a spark plug and threads on the exhaust manifold or header pipe connected to the manifold, depending on your vehicle. You will recognize it by the three electrical wires coming out of the sensor's tail.
4. Raise the front of the vehicle using a floor jack and support it on jack stands, if you need access to the sensor from under the vehicle. Block both rear wheels with two pieces of 2-inch by 4-inch wood blocks. Apply the parking brakes.
Modify any damaged vacuum hose.2. Research the valve and hose on the absolute crankcase ventilation (PCV) action. This is the little cylinder or meager L-shaped valve, approximately the bigness of a spark plug or smaller, connected to the intake manifold and the valve cover on top of your engine through a rubber hose.
Apply anti-seize compound to the threads of the new sensor, if the new unit does not have the compound on the threads already.
7. Start the sensor on its mounting boss by hand to prevent thread damage. Tighten the sensor with the oxygen sensor and ratchet.
8. Plug in the sensor's electrical connector.
9. Lower your vehicle off the jack stands using the floor jack, if you had to raise it, and remove the wood blocks.
