jjt Posted February 21, 2012 Share Posted February 21, 2012 This may be a soft question, so apologies in advance... If a Zed has had a UpRev remap, but then has had the EML light removed either by a proper Bosch machine or the magic throttle pressing trick, will the car still retain the UpRev map after the light has been reset? Cheers Jonathan Quote Link to comment Share on other sites More sharing options...
Ekona Posted February 21, 2012 Share Posted February 21, 2012 EML isn't connected to the remap, it's just a diagnostic light, so the map will stay regardless of how many times you set the light on or off. Quote Link to comment Share on other sites More sharing options...
jjt Posted February 21, 2012 Author Share Posted February 21, 2012 Cheers i thought as much, just when people say that doing this viewtopic.php?f=35&t=27472 will 'reset the ECU' i had my doubts whether the UpRev would remain afterwards! thanks for your reply Quote Link to comment Share on other sites More sharing options...
Ekona Posted February 21, 2012 Share Posted February 21, 2012 No probs Quote Link to comment Share on other sites More sharing options...
spursmaddave Posted February 21, 2012 Share Posted February 21, 2012 Don't forget to make a note of the code Best way I find is to use a mobile phone with a stopwatch to actually do the pedal dance and then use the phone to video the code Quote Link to comment Share on other sites More sharing options...
Chris`I Posted February 21, 2012 Share Posted February 21, 2012 When you say EML removed, I assume you mean reset? If they use OBD to reset it then it should not effect the UpRev map. The UpRev code is modfied OEM code that resides in the ECU firmware. When you remove the EML by resetting it should not effect this. However if Nissan has used software to "rewrite" the ECU then most likely it will have overwritten the UpRev code. You can use UpRev to cancel the EML permenantly for emmission warnings (for decats for example). Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted February 21, 2012 Share Posted February 21, 2012 yes erasing the CEL code wont lose your Uprev remap , but get the CEL code before erasing. Quote Link to comment Share on other sites More sharing options...
jjt Posted February 21, 2012 Author Share Posted February 21, 2012 OK so heres the story... On the 200 mile drive home when I bought the Zed the EML came on. I reset it myself, then took it to a friends garage who used the Bosch diagnostics system to take it off again (as it returned). The reason it had come on was because some poor quality gaskets had been used where the decats were, so they had essentially burnt away, which upset the sensors. Was just hoping that in my haste doing this i hadn't lost the UpRev settings- my mind has now been put to rest so thanks! Just out of interest is it worth doing another pedal dance, as the services i had to stop at on the drive home didn't have 98 RON, so the last reset would have been done on 95... From now on only VPower is ever going in! Cheers guys Quote Link to comment Share on other sites More sharing options...
spursmaddave Posted February 21, 2012 Share Posted February 21, 2012 You don't need to reset the ecu after using a little 95 ron Quote Link to comment Share on other sites More sharing options...
Shinjuku Posted February 22, 2012 Share Posted February 22, 2012 Why would you want to reset the ecu? Quote Link to comment Share on other sites More sharing options...
Shinjuku Posted February 22, 2012 Share Posted February 22, 2012 In fact why would you want to do any of the stuff in the link above Quote Link to comment Share on other sites More sharing options...
Ekona Posted February 22, 2012 Share Posted February 22, 2012 Why? To reset the CEL and see if you've cleared the problem, or to see if any of the other free fixes work before you start spending big money. The question should be, why would you not do any of the stuff in the link above? Quote Link to comment Share on other sites More sharing options...
Shinjuku Posted February 22, 2012 Share Posted February 22, 2012 Well, it does not say in the thread what the procedures are for or what they do. So to put it another, more specific, way which hopefully lets you see where I am coming from - what do each of those procedures do and what are examples of circumstances when I would want to undertake them? Thanks Shinjuku Quote Link to comment Share on other sites More sharing options...
DannyBoy Posted February 22, 2012 Share Posted February 22, 2012 Example: my Berks HFCs sometimes put my CEL on when its cold because they don't work until right up to temp, so the car thinks the sensors in the exhaust are broken because they're showing it something it thinks is wrong. So I do the pedal dance (detailed elsewhere) to check that it is indeed due to the heated O2 sensors, and then if that's all it is, perform the reset to remove the light. DB Quote Link to comment Share on other sites More sharing options...
jjt Posted February 22, 2012 Author Share Posted February 22, 2012 Cheers guys- its nice not to have to pay someone to plug a lead into your car if your nifty with your footwork isn't it?! Quote Link to comment Share on other sites More sharing options...
spursmaddave Posted February 22, 2012 Share Posted February 22, 2012 Cheers guys- its nice not to have to pay someone to plug a lead into your car if your nifty with your footwork isn't it?! When I had my Berks fitted I could pedal dance like Michael Flatley Quote Link to comment Share on other sites More sharing options...
buster Posted February 22, 2012 Share Posted February 22, 2012 since fitting HFCs (berks) and the sensor spacers i still get the eml light come on ref code p1167 02 sensor heated.if i am reading correctly is this just due to the cold weather then ? luckily Keyser is aways around to reset it Quote Link to comment Share on other sites More sharing options...
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