05sti Posted February 21, 2017 Report Share Posted February 21, 2017 I have a g4+ almost ready to go into the car. I am planning out how to run the wires and I purchased a male connector that will fit directly into the supplied "wideband' 4 pin female end on the ecu. I just can't find which pins correspond to which wires for the wideband. Does anyone have a diagram of this? Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted February 21, 2017 Report Share Posted February 21, 2017 You are going to need to be a bit more clear.What ecu do you have?I'm going to assume it will be going into a 2005 Subaru STi. What market? What engine?Please elaborate a bit more on, "I purchased a male connector that will fit directly into the supplied "wideband' 4 pin female end on the ecu" Quote Link to comment Share on other sites More sharing options...
05sti Posted February 21, 2017 Author Report Share Posted February 21, 2017 g4+ here's the 4 pin connector I am referencing, USDM ej257. I have the male end of this 4 pin connector- I just need to wire up the 4 wires in the right spots. Thanks! Quote Link to comment Share on other sites More sharing options...
Simon Posted February 21, 2017 Report Share Posted February 21, 2017 On that connector bottom 2 pins are groundTop right is 14VTop left is AN volt 11 input. It would need a external wideband controller to run the sensor and then AN volt 11 can be set as Lambda. Quote Link to comment Share on other sites More sharing options...
05sti Posted February 22, 2017 Author Report Share Posted February 22, 2017 Thank you! Quote Link to comment Share on other sites More sharing options...
mapper Posted February 24, 2017 Report Share Posted February 24, 2017 I highly recommend the LINK CAN-Lambda. Much more precise as the analog ones. I've seen huge errors in readings on some analoge controllers. Especially the AEM uego to name one.... Simon no wrong inhibitions to recommend one of the LINK product. They are more than great! ;-) Quote Link to comment Share on other sites More sharing options...
05sti Posted March 5, 2017 Author Report Share Posted March 5, 2017 If my sensor has it's own power already, do I just have to run a 0-5v output from the sensor to the input on the board? I have positive 0-5v output and negative 0-5v output. One of these would be the AN 11 volt lambda? Quote Link to comment Share on other sites More sharing options...
Simon Posted March 5, 2017 Report Share Posted March 5, 2017 What controller have you decided to use?The sensor is not able to be wired direct to the ECU. Quote Link to comment Share on other sites More sharing options...
05sti Posted March 5, 2017 Author Report Share Posted March 5, 2017 I have the whole AEM uego X wideband kit. It has it's own power and ground and then the various different outputs seen in this PDF on page 3, sorry for not linking it in the previous post I meant to! http://aemelectronics.com/files/instructions/30-0300 X-Series Wideband UEGO AFR Sensor Gauge.pdf It seems like I would run the white wire 0-5v analog output to the top right of the connector on the ecu and not have to run anything else because I already have it all wired into the car? Quote Link to comment Share on other sites More sharing options...
Simon Posted March 6, 2017 Report Share Posted March 6, 2017 Yep that is the one. Quote Link to comment Share on other sites More sharing options...
Clinton Broomhall Posted June 26, 2022 Report Share Posted June 26, 2022 On 2/22/2017 at 9:01 AM, Simon said: On that connector bottom 2 pins are ground Top right is 14V Top left is AN volt 11 input. It would need a external wideband controller to run the sensor and then AN volt 11 can be set as Lambda. Can you run an oxygen sensor without a can lambda ? Can you plug a type of oxygen senser straight into the exhaust? Or should I just leave it unplugged till I get one? Anyone have advice for me ? I have a g4+ , I got the idea that the 4 pin plug coming out the loom is an oxygen plug since everything else is hooked up and there isn't one ? Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 26, 2022 Report Share Posted June 26, 2022 You will need a wideband controller if you want to connect a wideband. You can connect a narrowband direct to the ECU but they are not much use for tuning. Quote Link to comment Share on other sites More sharing options...
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