help. SES light is on, wont go off, and no new codes...

e93WhiteonRed · 10-16-2010, 12:44 PM

So I'm at the end of the rope with my E93. BMW of sterling had the car for over a month (waiting on parts). Went in to fix an exhaust rattle, and to help with the stuttering and limp mode - always for a misfire on cyl 3. I just got the car back with a new HPFP, fuel pressure sensor, and upgraded software. Car seemed strong, but on map 5 it started to go into limp mode every time I floored it.

No new codes.. same misfire on cyl 3. I did get a 2FCA and a 2FDA but seems like they are normal with the new software with what I have read. I dont get the half engine light, it's not in limp mode, and no additional codes - why would the SES light STAY on even after I restart the car and should I be worried?

Does the new software have means of detecting a tune?

Hopefully I'll get new coils, plugs, or injectors for cyl 3 this time around.

Mike@N54Tuning.com · 10-16-2010, 12:59 PM

Remove all mods and keep taking it back to the dealer until they fix it. There is no reason you should need to troubleshoot it yourself.

Mike

e93WhiteonRed · 10-16-2010, 02:38 PM

Mike

They gave me a 2009 e90 335i - looks like an LCI. Would you throw the JB3 on the thing for the weekend just to see if it throws the loaner into limp mode? Part of me is wondering if there is something wrong with the actual tune because i cannot, in any way, get the car to replicate the problems when it is on map 0 or the tune is out... drives fine...

Mike@N54Tuning.com · 10-16-2010, 02:44 PM

Quote:

Originally Posted by e93WhiteonRed

Mike

They gave me a 2009 e90 335i - looks like an LCI. Would you throw the JB3 on the thing for the weekend just to see if it throws the loaner into limp mode? Part of me is wondering if there is something wrong with the actual tune because i cannot, in any way, get the car to replicate the problems when it is on map 0 or the tune is out... drives fine...

If it's just a misfire code it's not likely to be wiring or hardware related. If you have lots of other codes could be some hardware problem though. If you get a misfire tuned but zero codes stock some component on the car is likely on the edge of failure and not able to accommodate the extra power the tuning provides.

Mike

10-16-2010, 12:44 PM	#1
e93WhiteonRed Second Lieutenant 19 Rep 267 Posts Drives: 2007 E93 Alpine white with Red Join Date: Jul 2010 Location: Reston, Virginia iTrader: (3) Garage List 2007 335I E93 [0.00]	help. SES light is on, wont go off, and no new codes... So I'm at the end of the rope with my E93. BMW of sterling had the car for over a month (waiting on parts). Went in to fix an exhaust rattle, and to help with the stuttering and limp mode - always for a misfire on cyl 3. I just got the car back with a new HPFP, fuel pressure sensor, and upgraded software. Car seemed strong, but on map 5 it started to go into limp mode every time I floored it. No new codes.. same misfire on cyl 3. I did get a 2FCA and a 2FDA but seems like they are normal with the new software with what I have read. I dont get the half engine light, it's not in limp mode, and no additional codes - why would the SES light STAY on even after I restart the car and should I be worried? Does the new software have means of detecting a tune? Hopefully I'll get new coils, plugs, or injectors for cyl 3 this time around. __________________ 2007 335I E93 sport package Alpine White. BMS DCI, PROcede V4, ACT street clutch, Michelin Pilot Sport A/S Plus and BT Tool. Pending install of Raceland Downpipes.
	Appreciate 0 Tweet Quote

10-16-2010, 12:59 PM	#2
Mike@N54Tuning.com Joint Chiefs of Staff 4918 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Remove all mods and keep taking it back to the dealer until they fix it. There is no reason you should need to troubleshoot it yourself. Mike
	Appreciate 0 Quote

10-16-2010, 02:38 PM	#3
e93WhiteonRed Second Lieutenant 19 Rep 267 Posts Drives: 2007 E93 Alpine white with Red Join Date: Jul 2010 Location: Reston, Virginia iTrader: (3) Garage List 2007 335I E93 [0.00]	Mike They gave me a 2009 e90 335i - looks like an LCI. Would you throw the JB3 on the thing for the weekend just to see if it throws the loaner into limp mode? Part of me is wondering if there is something wrong with the actual tune because i cannot, in any way, get the car to replicate the problems when it is on map 0 or the tune is out... drives fine... __________________ 2007 335I E93 sport package Alpine White. BMS DCI, PROcede V4, ACT street clutch, Michelin Pilot Sport A/S Plus and BT Tool. Pending install of Raceland Downpipes.
	Appreciate 0 Quote