For those who got a reflash

[akh23456]

So i am getting a reflash this weekend for a completely turned off check engine light and i like to know how many of you got a reflash for this issue?
Did any of you guys get any other check engine light after it was turned on again?

[Leozap]

Who are you going with? Gintani? If so, do you know where the guy is or do you have his contact info? So far I haven't seen any engine light.

[DoNDoN]

Make sure they turn on your O2 sensors as they are probably turned off. I also see you have the Fabspeed pipes so make sure you have the O2 extenders on too. If you dont have these things done then you will get CELs. Also, if you get a chance do a dyno run before they reflash and then do one after.

[akh23456]

Originally Posted by Leozap

Who are you going with? Gintani? If so, do you know where the guy is or do you have his contact info? So far I haven't seen any engine light.

i am Powerchip right now will still with it till i get SC over winter n then i will be doing Oe tuning.

Originally Posted by DoNDoN

Make sure they turn on your O2 sensors as they are probably turned off. I also see you have the Fabspeed pipes so make sure you have the O2 extenders on too. If you dont have these things done then you will get CELs. Also, if you get a chance do a dyno run before they reflash and then do one after.

thanks alot i will get the O2 extenders put in by fabspeed. i have a pre flash dyno i put down 360 hp and 265 tq.. but i will re dyno after

Originally Posted by PencilGeek

If you see no lights during start up, that means your CEL is completely disabled. Most people consider this dangerous to have disabled because you have no indication whatsoever when problems occur which might damage your engine. It's also a red flag to the dealer that you have a modified ECU.

i agree thanks for your input

[jimmy ny]

I have OE Tune. I had it done back in August after my 1200 mile service. I dont see my CEL light come on either on start-up. So i guess I have the tune already for HFC or Cat delete. Its not something i really wanted, although the car does run great. Far as I know the CEl light would only come on for an emmisions issue, so other than that i dont think you would have that many it issues with the car. I did buy there EZ Flash and hopefully i did the download right and i have the factory tune stored. This way if the car does become un-operational, i could swith back to stock and go to the dealer. Do you really think the dealer is going to look for dash lights when you go there for routine maintaince? How many M3's do you think these techs actually see? So if my light is already turned off, then I should not have an issue when i add Gintani's HFC's. Any person have experience where the dealer said something? Did they re-flash your ECU without asking?, Put on there BMW tuner lock?

[Ben335]

Originally Posted by jimmy ny

I have OE Tune. I had it done back in August after my 1200 mile service. I dont see my CEL light come on either on start-up. So i guess I have the tune already for HFC or Cat delete. Its not something i really wanted, although the car does run great. Far as I know the CEl light would only come on for an emmisions issue, so other than that i dont think you would have that many it issues with the car. I did buy there EZ Flash and hopefully i did the download right and i have the factory tune stored. This way if the car does become un-operational, i could swith back to stock and go to the dealer. Do you really think the dealer is going to look for dash lights when you go there for routine maintaince? How many M3's do you think these techs actually see? So if my light is already turned off, then I should not have an issue when i add Gintani's HFC's. Any person have experience where the dealer said something? Did they re-flash your ECU without asking?, Put on there BMW tuner lock?

Having no CEL light come during start up is a big red flag. Many techs are trained to specifically look for this as this is a tell tale sign the your ECU has been changed. With the light completely off also, your engine could have catastrophic problems and you would never know as the CEL would never come on.

[BT M3]

Originally Posted by jimmy ny

I have OE Tune. I had it done back in August after my 1200 mile service. I dont see my CEL light come on either on start-up. So i guess I have the tune already for HFC or Cat delete. Its not something i really wanted, although the car does run great. Far as I know the CEl light would only come on for an emmisions issue, so other than that i dont think you would have that many it issues with the car. I did buy there EZ Flash and hopefully i did the download right and i have the factory tune stored. This way if the car does become un-operational, i could swith back to stock and go to the dealer. Do you really think the dealer is going to look for dash lights when you go there for routine maintaince? How many M3's do you think these techs actually see? So if my light is already turned off, then I should not have an issue when i add Gintani's HFC's. Any person have experience where the dealer said something? Did they re-flash your ECU without asking?, Put on there BMW tuner lock?

There's an update for this, mine has no cel issues now and passes readiness

[Ben335]

Originally Posted by BT M3

There's an update for this, mine has no cel issues now and passes readiness

Do you still have your stock Cats or have you modified your Cats?

[jimmy ny]

I still have factory cats. Who has this update?

[BT M3]

Originally Posted by Ben335

Do you still have your stock Cats or have you modified your Cats?

I have the primary cats deleted, no codes, full readiness, no shadow faults. Truly awesome.

[DLSJ5]

Originally Posted by Ben335

Having no CEL light come during start up is a big red flag. With the light completely off also, your engine could have catastrophic problems and you would never know as the CEL would never come on.

That is not correct, with the OE tune, when something the ECU does not like occurs, you will get a warning light and if necessary the ECU will enable "safe" mode.

[Ben335]

Originally Posted by BT M3

I have the primary cats deleted, no codes, full readiness, no shadow faults. Truly awesome.

If this can be confirmed, then it is very awesome. No one can fully confirm this though.

[akh23456]

Originally Posted by Ben335

If this can be confirmed, then it is very awesome. No one can fully confirm this though.

agree need it for my fabspeed cats cuz they throw codes for days...Mike at PC said "its a simple change from a 1 and a 0" as he said to fix the cel..i got a question does the car still throw codes if your cel is completely off ?

[Ben335]

Originally Posted by akh23456

agree need it for my fabspeed cats cuz they throw codes for days...Mike at PC said "its a simple change from a 1 and a 0" as he said to fix the cel..i got a question does the car still throw codes if your cel is completely off ?

I don't know the details of how to fix it, but if the CEL is off it will not turn on for ANY reason. To answer your question it depends, there was an issues where the CEL was turned off but codes were still being thrown and stored in the ECU, but you would not know it, since the CEL was turned off.

[BT M3]

Originally Posted by Ben335

If this can be confirmed, then it is very awesome. No one can fully confirm this though.

I can confirm it, I was one of the early beta adopters.

[BT M3]

Originally Posted by akh23456

agree need it for my fabspeed cats cuz they throw codes for days...Mike at PC said "its a simple change from a 1 and a 0" as he said to fix the cel..i got a question does the car still throw codes if your cel is completely off ?

From what I've seen they have two options, "on" and "off" nothing in between. So catless guys will have issues.

[Ben335]

Originally Posted by BT M3

I can confirm it, I was one of the early beta adopters.

Since your a 2010, you have not had to pass emissions. I would be really interested to hear from someone that has passed emissions with a tune. That is the true test. Passing emissions and the readiness test.

[BT M3]

Originally Posted by Ben335

Since your a 2010, you have not had to pass emissions. I would be really interested to hear from someone that has passed emissions with a tune. That is the true test. Passing emissions and the readiness test.

That is incorrect. In the state of MA you need to pass readiness to get any sticker, any year. Worse then California. We don't get a "new car" grace period. 2011's need to pass off the showroom floor.

I have independently tested the readiness/faults over the last few months. PM me an email of my bavarian technic screenshot for my current or lack-of-fault codes and heldhand readiness monitor if you'd like.

[DLSJ5]

Originally Posted by PencilGeek

What are you talking about Drew? Everything Ben said is 100% correct. Of course no CEL on start up is a huge red flag to the BMW techs. Just go ask "J" how BMW treated him after they discovered his was disabled. And with the light completely disabled, are you saying you still get notified when your engine has a problem? What does it do -- send you an email, vibrate the seat, or turn on the seat heater on nuclear blast to inform you that there's a problem? LOL. When it's disabled, until you get a limp mode there's no possible way you're getting notified -- BECAUSE IT'S DISABLED.

But at least there's now an update for a problem that never existed...so we're all relieved.

Drew, you need to check the talking points for accuracy before reposting them next time.

Robert,

What's wrong with you? It may very well be a red flag on start up, I wasn't referring to that. Yes certain things are disabled or tweaked, like the rear 02's, so you don't get a light, but what I said is accurate. You don't run OE tuning, no the SES light does not appear before start up, BUT if the ECU detects something you will still get an engine warning light, or notified.

Just like any other car should, an engine light appears in the nav screen and on the dash, and if necessary the car will go in limp mode until you recycle the ignition.

[BT M3]

Jeez - all you Cali guys need to go back to sleep - it's even early for my east coast self (9am).

Drew - PM me I have an even better solution for you.

[DLSJ5]

Originally Posted by Ben335

I don't know the details of how to fix it, but if the CEL is off it will not turn on for ANY reason. To answer your question it depends, there was an issues where the CEL was turned off but codes were still being thrown and stored in the ECU, but you would not know it, since the CEL was turned off.

Even if you don't turn off the SES light you can still have plenty of codes and it will not set off a warning light.

Ben, I can assure you even with the SES light disabled for specific things or if you don't see it before start up, if the ecu detects certain things you will get a warning light, the light will go away after you recycle the ignition.

[Ben335]

Originally Posted by DLSJ5

Even if you don't turn off the SES light you can still have plenty of codes and it will not set off a warning light.

Ben, I can assure you even with the SES light disabled for specific things or if you don't see it before start up, if the ecu detects certain things you will get a warning light, the light will go away after you recycle the ignition.

Ok, Let me be very concise so there is no confusions. If you turn off the CEL completely, it will NEVER turn on, even if the engine is about to take a shit, it will stay off. You will however, still go into limp mode....but the CEL when turned off, will never turn on period. This is confirmed by several BMW techs. It is also a huge red flag when it does not turn on when you start the car. It is not the correct way to tune period. I am not sure why you are arguing this seemingly moot point.

Turning off the rear O2 sensors is a totally different thing. If you do that correctly, the functionality of your CEL stays intact. It will light when you start the car and it will also go off if there are other codes besides the ones thrown by the rear O2 sensors.

Problem is this, there are many tunes out there including the one that I have before it was corrected that turned off the CEL completely, worse yet some left the O2 sensors still on so the car was still storing codes but you never knew it as the CEL was turned off completely. The only way to know is to use a OBD-II diagnostic tool.

I repeat, ANYONE THAT HAS THEIR CEL COMPLETELY TURNED OFF IS RUNNING A HUGE RISK, NOT ONLY FROM ISSUES THAT ARISE FROM NOT KNOWING WHEN THERE IS A PROBLEM WITH THEIR ENGINE, BUT ALSO FROM DETECTION FROM A DEALER THAT YOU HAVE TAMPERED WITH THEIR ECU.

These facts are un-arguable.