Dynodom Posted April 20, 2018 Report Share Posted April 20, 2018 Hello Car: Nissan 350Z, MY 2007 Link Plugin ECU 2x Link O2 Sensors CAN As soon as I connect the CAN bus lines from the O2 controller, the car CAN bus goes to limp mode (engine fan full speed). CAN H and L are correct. Power supply to O2 CAN controllers are 12.5 V, new cables for power feed installed. CAN wires from O2 controllers are tightly twisted. I gather that this ECU has only one CAN bus (2). When I attempt to detect new CAN device, none is found. I am totally lost here, having spent many hours to get it to work following closely the instructions Thank you for your help in advance Dom Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted April 20, 2018 Report Share Posted April 20, 2018 ecu has two CAN buses. Might want to move the O2s to the second bus and trouble shoot from there. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 20, 2018 Report Share Posted April 20, 2018 On the 350Z ECU (and all our other ECUs for cars with an OEM CAN bus) CAN2 can only be used for the preconfigured OEM datastream. Any other CAN devices have to be connected to CAN1. The CAN1 socket is inside the case, you will need to open up the case, put a hole in it and use a CANPCB cable to bring that port outside of the ECU. Quote Link to comment Share on other sites More sharing options...
Dynodom Posted April 21, 2018 Author Report Share Posted April 21, 2018 Thank you Quote Link to comment Share on other sites More sharing options...
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