Hello, I am trying to track down a problem with my 2004 V70 Front wheel drive 2.5 T wagon. I recently had a check engine light come on. Codes were P0137 and P0140. I replaced both front and rear sensors and have 0.0V on rear sensor before and after replacement. Sent back the rear sensor and installed new one with same readings. I subscribed to Alldata...now called Some data by me and all the diagrams and descriptions of ECU wiring and O2 sensor wiring seems be all over the place. One chart says pin #61 and another says pin#34 at ECU and show a 43 pin 3 row connector. All the connectors have four rows on my car. On one page I printed it said the 120 pin connector.
Sorry, long story short. Can anyone help me get the correct diagrams and wire color codes to test signal at computer. Until I get the correct pin # and or a good picture of connector can't even test for continuity.
Please help...I need a state inspection ASAP!

 

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