Thanks heaps mate I was doing some research last night on the auto meter site and found that the sensor I have is the narrowband type and I need to plumb it into the 02 pin of the ecu. But from everything I've read these narrowband gauges are well useless and as I picked the gauge up for nothing I'm tossing up whether or not to just get rid of it and buy the auto meter wideband sensor and gauge kit. What are your thoughts? At the moment the gauge is for nothing more than in cabin monitoring as I'm still running the standard ecu it's just something I would like to be able to keep an eye on as I know that running lean will kill my engine quick smart.