[WhitehawkCS]

I was talking a BMW tech who is a friend of mine and he said that even though the JB3 doesn't set off the CEL it still stores a "modified power" code on the DME.

Is this true? And if so, how to get rid of it so it doesn't void the warranty?

Thanks in advance!!

[CollinsE90]

Originally Posted by BlueMan

I was talking a BMW tech who is a friend of mine and he said that even though the JB3 doesn't set off the CEL it still stores a "modified power" code on the DME.

Is this true? And if so, how to get rid of it so it doesn't void the warranty?

Thanks in advance!!

http://www.bavariantechnic.com/buy.aspx

[oner]

That would a be called a tuner code and thats only if you are running like Map 9 on stock. Be sensible and you won't get a tuner code. If you do then a BT cable can clear it.

[WhitehawkCS]

Originally Posted by CollinsE90

http://www.bavariantechnic.com/buy.aspx

if i am going to have to buy a kit also, then i should just get a dinan upgrade and not have to worry about it, no?

[CollinsE90]

Originally Posted by BlueMan

if i am going to have to buy a kit also, then i should just get a dinan upgrade and not have to worry about it, no?

you're in LA, find someone in LA with the cable, plenty of members on here in LA

[WhitehawkCS]

i wasnt planning to run more than map 3, because i dont want to do all the internal stuff and finding higher octane gas is a pain. map 3 shouldnt set anything off, right?

[CollinsE90]

Originally Posted by BlueMan

i wasnt planning to run more than map 3, because i dont want to do all the internal stuff and finding higher octane gas is a pain. map 3 shouldnt set anything off, right?

very unlikely, like i said befriend a fellow LA member with a cable

[Mike@N54Tuning.com]

BMW Techs and SAs aren't the most reliable source of info regarding BMW and tuning

Mike

[UltraRacer13]

Originally Posted by CollinsE90

very unlikely, like i said befriend a fellow LA member with a cable

Collins- for the life of me I can't figure out why the old man fell down?? It almost looks like he was hit "upside the head". Funny stuff. I have stared at that thing for way too long.

[fruition3000]

If a BMW tech hooks ur car up to the computer they have in the shop, all codes from the DME is sent to germany. Clear your codes and remove ur tune before taking it in.

[Jeff@TopGearSolutions]

If your running map 3, theoretically it should not throw any codes.

For peace of mind to you, I ran map 7 without having any codes come about.

But yea to play it safe you will be fine with map 3.

Oh and FWIW I installed a Jb3 on an older gentlemen's car and hes been running map 5 ever since with no problems from the dealer.

If you are that worried, which you shouldnt be, you can always pick up the Bt tool.

[oner]

Originally Posted by BlueMan

i wasnt planning to run more than map 3, because i dont want to do all the internal stuff and finding higher octane gas is a pain. map 3 shouldnt set anything off, right?

Map 3 on stock is perfect. You'll have the same or more power than a DINAN stage 2 with a JB3 on Map 3. Its good for any place that doesn't have anything higher than 91 (like cali).

[WWM3]

Can someone help explain to me why a JB+ at default setting now seems to throw tuner codes with the new software yet a JB3 will not? I imagine they manipulate the boost differently? Thanks.

[Mike@N54Tuning.com]

Originally Posted by WW330

Can someone help explain to me why a JB+ at default setting now seems to throw tuner codes with the new software yet a JB3 will not? I imagine they manipulate the boost differently? Thanks.

The JB3 has fuel pressure control which helps it make a lot more power without triggering the detection codes. Generally the JB+ at default has been code free but at this stage in the game given BMW's stance on tuning I'd suggest a BT for anyone looking to modify their car.

Mike