Re: P0134 - O2 Sensor Again?? Fuel related? - Saab 9-5 Bulletin Board - Saabnet.com
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Re: P0134 - O2 Sensor Again?? Fuel related?
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Posted by doug [Email] (more from doug) on Wed, 19 Aug 2009 12:13:36 Share Post by Email
In Reply to: P0134 - O2 Sensor Again?? Fuel related?, Chris 9-5 Wagon, Tue, 18 Aug 2009 06:35:11
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Chris the code p0134 refers to no activity from the front 02 sensor.The sensor may indeed have failed, There are known issues with the wiring for the sensors.Wires from pin3 of the front and rear 02 sensors are connected at j16.From j16 a single wire goes to pin 58 at the ecu connector. There have been problems at this connection.J 16 is located left, north american passenger, side aprox. 20 mm from the cable tie on the ecu connector.I would suggest adding a jumper from the front 02 sensor female plug, the side that is the vehicle wiring harness pin 3 to pin three of the rear 02 female plug. The rear sensor is not throwing codes so it's connection may be good. Two feet of 22 awg wire and 20 minutes of time may cure the fault. If you have a ohm meter you can check for continuity between both #3 pins first. Give the wires a firm tug and twist to see if there is a bad connection at j13. Hope this gives you some ideas cheers doug

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