P1131 1998 Mazda 626 -EricTheCarGuy

P1131 is a code for an O2 sensor that has pegged lean. It some cases this means you have a bad O2 sensor, but sometimes it could indicate a vacuum leak, an exhaust leak, an injector that isn't working, low fuel pressure, a connection problem, a wiring problem, or lastly, an ECU problem. In this video I cover the basics of diagnosing this code as well as how to replace an O2 sensor on this 2.0L 1998 Mazda 626. So the next time you have a P1131 code take some time to check things out before you replace the sensor.

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Tools.

Encore: Link to tool: http://www.jbtoolsales.com/otc-3893-encore-obdii-deluxe-tablet-automotive-scan-tool-kit/#oid=1002_1

O2 Sensor Socket 1: http://www.jbtoolsales.com/gearwrench-3920d-7-8-slot-3-8-drive-pvs-tvs-and-o2-socket/#oid=1002_1

O2 Sensor Socket 2: http://www.jbtoolsales.com/performance-tool-w80491-off-set-o2-sensor-wrench/#oid=1002_1

EricTheCarGuy code lookup: http://www.ericthecarguy.com/obd-code-lookup

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http://www.ericthecarguy.com/faq/solving-automotive-hvac-problems

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MPG

http://ericthecarguy.com/faq/finding-and-fixing-the-causes-of-poor-mpg

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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.