Jay.1r Posted November 21, 2014 Share Posted November 21, 2014 Hi guys, tried for the last hour to do the pedal dance and it is clear that I have no rhythm, so I was wondering if the ecu would reset via disconnecting the batterys earth and leaving for a few hours? i dont mind the radio resetting, aslong as I dont have to dance anymore Quote Link to comment Share on other sites More sharing options...
martinmac Posted November 21, 2014 Share Posted November 21, 2014 The only time I have managed the pedal reset I had someone else promting and timing me. Quote Link to comment Share on other sites More sharing options...
GMballistic Posted November 21, 2014 Share Posted November 21, 2014 If you disconnect the battery for a good length of time I believe it should reset the ECU. When I first tried the pedal dance I couldn't do it either, ...even with a clock that had the seconds hands for added help with timing. In the end though I got it down to an art form and just counted in my head. I think where some people go wrong or maybe it was just me is step 2 whereby you try to do step 2a & 2b five times within 5 seconds. 2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds. 2a. Fully depress the accelerator pedal (HARD). 2b. Fully release the accelerator pedal. It doesn't have to be 5 seconds elapsed time just done within 5 seconds. Hope that makes sense. Anyway good luck with it whichever way you go. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted November 21, 2014 Share Posted November 21, 2014 If you disconnect the battery for a few seconds and reconnect, it will reset short term fuel and knock tables, but AFAIK it will not clear stored error codes, these are retained until cleared with suitable interface/software. Quote Link to comment Share on other sites More sharing options...
GMballistic Posted November 21, 2014 Share Posted November 21, 2014 If you disconnect the battery for a few seconds and reconnect, it will reset short term fuel and knock tables, but AFAIK it will not clear stored error codes, these are retained until cleared with suitable interface/software. Ahh, so it wouldn't clear the EML then Tricky if that's what he's trying to do. Good to know ~ glad I can dance now. Quote Link to comment Share on other sites More sharing options...
Jay.1r Posted November 21, 2014 Author Share Posted November 21, 2014 Thanks for the help guys, glad im not the only one! And yes its for the eml, had my decats put on and going to try and reset it, if that fails uprev in january with tdi north, if they are listening heres a pre warning ! Quote Link to comment Share on other sites More sharing options...
ZEUS Posted November 21, 2014 Share Posted November 21, 2014 Don't you have to disconnect it for something like 12 hours to get it to reset? I did mine over night once, it wasn't for the eml light thought. Actually I can't remember the reason I needed to do a reset Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted November 21, 2014 Share Posted November 21, 2014 The whole leaving the battery disconnected for minutes/hours thing is a myth, simply disconnecting the power is enough. 1 Quote Link to comment Share on other sites More sharing options...
GT4 Zed Posted November 21, 2014 Share Posted November 21, 2014 No it's not but doesn't require hours but minutes should do it. The key step is to discharge the ECU capacitors. So after a few minutes of disconnecting the earth, you depress the brakes fully a few times, this discharges the capacitors then reconnect the battery earth and the ECU will reset and cancelled any emission related EML if it's a transient fault. Wrt decats it will come back. The solution is to get the O2 sensor foolers. Zmanalex has this in stock ready to go! Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted November 21, 2014 Share Posted November 21, 2014 The capacitors in the ECU are so small a value they will discharge themselves in less than a minute, as the ECU has its own earth, also the if you disconnect the battery negative, pressing the brake will not earth the system, CELs are stored on a separate flash memory and will be retained until they are erased by diagnostic software or pedal dance. Quote Link to comment Share on other sites More sharing options...
Jay.1r Posted November 22, 2014 Author Share Posted November 22, 2014 I bought the decats on here and they have the spacers already welded to them, is it still worthwhile purchasing the 02 foolers? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted November 22, 2014 Share Posted November 22, 2014 (edited) Only if you keep getting a CEL for the cat O2 monitors, and if your going up rev you can have them turned off. It wont hurt the engine anyway. Edited November 22, 2014 by Tricky-Ricky Quote Link to comment Share on other sites More sharing options...
GT4 Zed Posted November 22, 2014 Share Posted November 22, 2014 The capacitors in the ECU are so small a value they will discharge themselves in less than a minute, as the ECU has its own earth, also the if you disconnect the battery negative, pressing the brake will not earth the system, CELs are stored on a separate flash memory and will be retained until they are erased by diagnostic software or pedal dance. Disagree. Quote Link to comment Share on other sites More sharing options...
Jay.1r Posted November 22, 2014 Author Share Posted November 22, 2014 Il run it with the lights on till January then if it wont hurt the engine, I work Shifts so the car isnt used that regularly 4 times every 10 days mostly in this weather, thanks to all of you, put my mind at ease! Quote Link to comment Share on other sites More sharing options...
GMballistic Posted November 22, 2014 Share Posted November 22, 2014 Il run it with the lights on till January then if it wont hurt the engine, I work Shifts so the car isnt used that regularly 4 times every 10 days mostly in this weather, thanks to all of you, put my mind at ease! One thing worth noting Jay is that with the EML already on if another problem occurs you're not going to realize unless you read the code & spot a new error code. You can buy code readers cheap enough from eBay and I believe some of them allow you to also clear the codes. That way you can check it regularly just to make sure it is on just because of the known O2 sensor error or whether something else has occurred. Link: http://www.ebay.co.uk/itm/Powerful-D900-CANSCAN-OBD2-Live-PCM-Data-Code-Reader-Scanner-2012-Version-UK-G-/151465332045?pt=LH_DefaultDomain_3&hash=item2344098d4d I don't have one of these myself but always planned on getting one, it's just other things popped up like supercharging. Take a look on eBay and you might find one even cheaper than the one I linked. 1 Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted November 22, 2014 Share Posted November 22, 2014 Il run it with the lights on till January then if it wont hurt the engine, I work Shifts so the car isnt used that regularly 4 times every 10 days mostly in this weather, thanks to all of you, put my mind at ease! One thing worth noting Jay is that with the EML already on if another problem occurs you're not going to realize unless you read the code & spot a new error code. You can buy code readers cheap enough from eBay and I believe some of them allow you to also clear the codes. That way you can check it regularly just to make sure it is on just because of the known O2 sensor error or whether something else has occurred. Link: http://www.ebay.co.u...=item2344098d4d I don't have one of these myself but always planned on getting one, it's just other things popped up like supercharging. Take a look on eBay and you might find one even cheaper than the one I linked. Good point! which I forgot, as I used to run ECU data-scan on mine so I was always aware of any new faults. Quote Link to comment Share on other sites More sharing options...
flyboy Posted November 22, 2014 Share Posted November 22, 2014 Get a bluetooth OBD11 connector from ebay for a few quid and an app for android called carista its free and reports on codes/pending codes and resets all codes in seconds. My Invidia and sports cats throws an EML due to the O2 sensors whenever I have to queue or run at low revs before the cats are up to temp. carista turns the EML off even when the car is running. best £8 I spent was on the OBD module. Quote Link to comment Share on other sites More sharing options...
Jay.1r Posted November 24, 2014 Author Share Posted November 24, 2014 Does it work for iphone? Quote Link to comment Share on other sites More sharing options...
flyboy Posted November 24, 2014 Share Posted November 24, 2014 No But there are other apps that do. Just check if you need a bluetooth or wifi dongle for the one you choose before you get it as very few do both. Quote Link to comment Share on other sites More sharing options...
Jay.1r Posted November 25, 2014 Author Share Posted November 25, 2014 Going to give this a blast thanks guys! http://pages.ebay.com/link/?nav=item.view&alt=web&id=171388189150 Quote Link to comment Share on other sites More sharing options...
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