phil.g. Posted February 20 Share Posted February 20 Hi everyone, Can anyone tell me what the sensor is on the top of the downpipe, I’ve searched for o2 sensor and none of them are the same as this single wire sensor, any help would be appreciated, thanks, phil. Quote Link to comment Share on other sites More sharing options...
mattdavies Posted February 20 Share Posted February 20 Maybe its for an aftermarket gauge ? It looks like the lower one is the one for air/fuel. Whats the setup on the car ? Does it still have the Stock ECU ? Quote Link to comment Share on other sites More sharing options...
phil.g. Posted February 20 Author Share Posted February 20 (edited) Thanks Mattdavies, The setup is:- single turbo conversion Plug on coil pack gte Ecu with G-reddy performance piggyback ecu standard injectors hks boost controller there is a fuel/air ratio meter that is working, but I can’t follow the wire from the top sensor to find out where it goes. the Ecu was changed recently as I went plug on coils, I needed the gte Ecu to run them, but that sensor has always been there, im only asking because I have an o2 error sensor but i got a new one a few months to try and get rid of the error code, it never worked Edited February 20 by phil.g. (see edit history) Quote Link to comment Share on other sites More sharing options...
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