zippypooz Posted August 16, 2016 Share Posted August 16, 2016 Hi all, as above, my engine management light has come on, with the error no1 02 sensor, bank 2. Ive had a reset and it comes up again. Firstly how much is it to replace this sensor, is this the definite cause and where is it located!!? Thanks guys. Quote Link to comment Share on other sites More sharing options...
chippychip123 Posted August 16, 2016 Share Posted August 16, 2016 It'll be the decats you've got I would imagine mate, mine occasionally throws one up on a cold day and I'm running HFCs. When you had it Upreved they are able to switch the rear sensors off I believe Quote Link to comment Share on other sites More sharing options...
zippypooz Posted August 16, 2016 Author Share Posted August 16, 2016 It'll be the decats you've got I would imagine mate, mine occasionally throws one up on a cold day and I'm running HFCs. When you had it Upreved they are able to switch the rear sensors off I believe Yes i thought that but its staying on all the time...not sure whether to worry about it or not! Quote Link to comment Share on other sites More sharing options...
chippychip123 Posted August 16, 2016 Share Posted August 16, 2016 The second ones don't really do a lot as far as I'm aware hence why they can turn them off, you have one in each manifold and then one post cat. I normally just do the pedal dance when mine comes up, if you try it again it might stay out next time? If you did want to get to them their the ones you can see on the decats, the plug clips onto a bracket on the bottom of the gearbox 1 Quote Link to comment Share on other sites More sharing options...
zippypooz Posted August 16, 2016 Author Share Posted August 16, 2016 I'll keep you posted!! can you remind me about the pedal dance!! Quote Link to comment Share on other sites More sharing options...
Rock_Steady Posted August 17, 2016 Share Posted August 17, 2016 i wouldn't worry about it. I drove mine with the engine light on for a year because of the HFCs/o2 sensor. When i had it re-mapped @ Abbey i asked mark if it would've caused any problems and he said it wouldn't've done anything at all. 1 Quote Link to comment Share on other sites More sharing options...
Rock_Steady Posted August 17, 2016 Share Posted August 17, 2016 I'll keep you posted!! can you remind me about the pedal dance!! it won't get rid of it. I tried it and i also used my mates snap on ECU reader to delete it. Came back on 20 minutes later Quote Link to comment Share on other sites More sharing options...
zippypooz Posted August 17, 2016 Author Share Posted August 17, 2016 I'll keep you posted!! can you remind me about the pedal dance!! it won't get rid of it. I tried it and i also used my mates snap on ECU reader to delete it. Came back on 20 minutes later Yeah that happened too here. Quote Link to comment Share on other sites More sharing options...
davey_83 Posted August 17, 2016 Share Posted August 17, 2016 Your ecu is mapped so why are these sensors not turn off? Quote Link to comment Share on other sites More sharing options...
zippypooz Posted August 17, 2016 Author Share Posted August 17, 2016 Your ecu is mapped so why are these sensors not turn off? Yes it was and they were off. But now its on for some reason. All i can think of is there may be a leak somewhere at the front part of the exhaust system, ie Y pipe to front of car. Quote Link to comment Share on other sites More sharing options...
Rock_Steady Posted August 18, 2016 Share Posted August 18, 2016 Your ecu is mapped so why are these sensors not turn off? Yes it was and they were off. But now its on for some reason. All i can think of is there may be a leak somewhere at the front part of the exhaust system, ie Y pipe to front of car. i didn't appreciate that you had had it mapped before. I missed that somewhere Quote Link to comment Share on other sites More sharing options...
zippypooz Posted August 18, 2016 Author Share Posted August 18, 2016 Your ecu is mapped so why are these sensors not turn off? Yes it was and they were off. But now its on for some reason. All i can think of is there may be a leak somewhere at the front part of the exhaust system, ie Y pipe to front of car. i didn't appreciate that you had had it mapped before. I missed that somewhere Ahhh its not mentioned in this thread, Davey already know id had it uprevved. I think they override the sensor from cat back. Quote Link to comment Share on other sites More sharing options...
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