check engine light w/jb4

Bobbybmw22 · 04-05-2013, 08:26 AM

So last saturday my check engine light came on and the car had no power and felt like it was sputtering and then 2 mins later it went away and never showed any signs of anything going bad after that. Yest i was driving through a toll booth and gunned it with paddle shifters had perfect shifts but had to make a hard stop due to on coming traffic and it went into a limp mode pulled over turned the car on and off and everything went away and its been driving ever since then. Its really wierd and i dont know if it has anything to do with the tune and if i should contact bmw to check it out while its under warranty i just dont want to take the tune out if its not going to turn out to be anything. PLEASE HELP

Pete Schweaty · 04-05-2013, 08:28 AM

Sounds like a classic misfire. Check the codes to be sure.

eric@helix · 04-05-2013, 09:52 AM

First things first, check the codes. Chances are small that the codes are caused by your piggyback tuner. In fairness to Terry, maybe you could change the title of your thread until you know what the cause is.

M5Rlz · 04-05-2013, 10:57 AM

I had something like this stock but it was ses light and they redid all my fuel injectors

demontwinz · 04-05-2013, 12:00 PM

happened to me. It was bad spark plugs. Everything is fine now

ksalih · 04-05-2013, 12:14 PM

why oh why not check the codes before posting for help? :/

BEAR-AvHistory · 04-05-2013, 01:33 PM

Try to reset the unit to all defaults & start over. File pull down "restore defaults"

Bobbybmw22 · 04-05-2013, 02:01 PM

I dont have a light anymore it went on and came off...and im not trying to say nayhting bad about the jb4 im just trying to see if it has anything to do with the tune

Pete Schweaty · 04-05-2013, 03:53 PM

It was a misfire. The CEL will clear itself but the code is still there.

LAZ · 04-05-2013, 04:31 PM

Do you know how to check the codes using the JB4? The JB4 might still read out a code even if the light is no longer on...

Bobbybmw22 · 04-06-2013, 08:18 AM

Quote:

Originally Posted by Pete Schweaty

It was a misfire. The CEL will clear itself but the code is still there.

Thats exactly whats going it misfires and then goes away after a minute of driving and it only does that when im driving it in the manual mode. should i go ahead and replace the plugs?

Bobbybmw22 · 04-06-2013, 08:20 AM

Quote:

Originally Posted by LAZ

Do you know how to check the codes using the JB4? The JB4 might still read out a code even if the light is no longer on...

No i dont know how from the jb4 but i do know how from the obdII connector ill do that to confirm misfire codes..

Bobbybmw22 · 04-06-2013, 08:20 AM

This is not covered under cpo warranty right?

Pete Schweaty · 04-06-2013, 08:43 PM

http://www.n54tech.com/forums/showth...highlight=2aaf

Use this link to read the codes.

Use this one to diagnose the problem once you figure out the code

http://m.youtube.com/#/watch?feature...%3DFsNK1ySAlSo

catcher22 · 04-09-2013, 01:01 PM

It was a misfire and your car corrected itself after driving a bit. It has happened to me so many times.

It means your plugs/coils are starting to go. I replaced all and no longer get the misfires.

09BMW335i · 04-09-2013, 01:12 PM

Sounds crazy but how were you on gas. if you get to low and you stomp on it you could be running lean and you go into limp mode. and a few minutes later your back to normal. it has happened to me once or twice.

Bobbybmw22 · 04-09-2013, 03:32 PM

Quote:

Originally Posted by catcher22

It was a misfire and your car corrected itself after driving a bit. It has happened to me so many times.

It means your plugs/coils are starting to go. I replaced all and no longer get the misfires.

exact thing that happened to me..im prob going to have to do that but i only have about 70k on it

04-05-2013, 08:26 AM	#1
Bobbybmw22 JB4, BMS intake 18 Rep 244 Posts Drives: White BMW 335xi Coupe Join Date: Aug 2012 Location: Millstone iTrader: (0) Garage List 2008 BMW 335xi [0.00]	check engine light w/jb4 So last saturday my check engine light came on and the car had no power and felt like it was sputtering and then 2 mins later it went away and never showed any signs of anything going bad after that. Yest i was driving through a toll booth and gunned it with paddle shifters had perfect shifts but had to make a hard stop due to on coming traffic and it went into a limp mode pulled over turned the car on and off and everything went away and its been driving ever since then. Its really wierd and i dont know if it has anything to do with the tune and if i should contact bmw to check it out while its under warranty i just dont want to take the tune out if its not going to turn out to be anything. PLEASE HELP
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04-05-2013, 08:28 AM	#2
Pete Schweaty Captain 39 Rep 641 Posts Drives: 2014 750li Join Date: Jun 2011 Location: MD iTrader: (0)	Sounds like a classic misfire. Check the codes to be sure.
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04-05-2013, 09:52 AM	#3
eric@helix 218 Rep 1,161 Posts Drives: 01 M Coupe, 08 135i, '12 328i Join Date: Jul 2007 Location: Philadelphia iTrader: (0)	First things first, check the codes. Chances are small that the codes are caused by your piggyback tuner. In fairness to Terry, maybe you could change the title of your thread until you know what the cause is.
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04-05-2013, 10:57 AM	#4
M5Rlz Colonel 262 Rep 2,203 Posts Drives: R8, f10m59(Rip), m4, GTR Join Date: Feb 2013 Location: MD iTrader: (3)	I had something like this stock but it was ses light and they redid all my fuel injectors
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04-05-2013, 12:00 PM	#5
demontwinz Lieutenant 19 Rep 456 Posts Drives: 335i e92 Join Date: Sep 2012 Location: Toronto iTrader: (0)	happened to me. It was bad spark plugs. Everything is fine now __________________
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04-05-2013, 12:14 PM	#6
ksalih Lieutenant 76 Rep 511 Posts Drives: 2018 M2 LCI Join Date: Mar 2012 Location: Gilbert, AZ iTrader: (1)	why oh why not check the codes before posting for help? :/ __________________ '2018 F87 M2 LCI \| LBB \| GC Camber Plates \| Ohlins R&T 90/190N/mm \| 18x10 et33 square 275/35 \| MPe \| Poly Transmission Mounts \| Recaro Sportster CS
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04-05-2013, 01:33 PM	#7
BEAR-AvHistory 2020 Z4 M40i - 2022 M4C Convt 3174 Rep 5,264 Posts Drives: 2020 Z4 M40i - 2022 M4C Convrt Join Date: Jun 2011 Location: Raleigh, NC - OIB, NC iTrader: (0) Garage List 1965 COBRA (FFR rep ... [8.57] 2023 Jeep Wrangler ... [4.75] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00]	Try to reset the unit to all defaults & start over. File pull down "restore defaults" __________________ Kevin Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT
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04-05-2013, 02:01 PM	#8
Bobbybmw22 JB4, BMS intake 18 Rep 244 Posts Drives: White BMW 335xi Coupe Join Date: Aug 2012 Location: Millstone iTrader: (0) Garage List 2008 BMW 335xi [0.00]	I dont have a light anymore it went on and came off...and im not trying to say nayhting bad about the jb4 im just trying to see if it has anything to do with the tune
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04-05-2013, 03:53 PM	#9
Pete Schweaty Captain 39 Rep 641 Posts Drives: 2014 750li Join Date: Jun 2011 Location: MD iTrader: (0)	It was a misfire. The CEL will clear itself but the code is still there.
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04-05-2013, 04:31 PM	#10
LAZ OneThirty5Eye 112 Rep 250 Posts Drives: 135i, 335i Join Date: Dec 2012 Location: San Antonio, TX iTrader: (0)	Do you know how to check the codes using the JB4? The JB4 might still read out a code even if the light is no longer on...
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04-06-2013, 08:20 AM	#13
Bobbybmw22 JB4, BMS intake 18 Rep 244 Posts Drives: White BMW 335xi Coupe Join Date: Aug 2012 Location: Millstone iTrader: (0) Garage List 2008 BMW 335xi [0.00]	This is not covered under cpo warranty right?
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04-06-2013, 08:43 PM	#14
Pete Schweaty Captain 39 Rep 641 Posts Drives: 2014 750li Join Date: Jun 2011 Location: MD iTrader: (0)	http://www.n54tech.com/forums/showth...highlight=2aaf Use this link to read the codes. Use this one to diagnose the problem once you figure out the code http://m.youtube.com/#/watch?feature...%3DFsNK1ySAlSo
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04-09-2013, 01:01 PM	#15
catcher22 Captain 298 Rep 922 Posts Drives: 2008 335xi Coupe Join Date: May 2008 Location: Virginia iTrader: (2)	It was a misfire and your car corrected itself after driving a bit. It has happened to me so many times. It means your plugs/coils are starting to go. I replaced all and no longer get the misfires.
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04-09-2013, 01:12 PM	#16
09BMW335i Second Lieutenant 29 Rep 259 Posts Drives: 2009 335i Join Date: Nov 2012 Location: northwest burbs, IL iTrader: (0) Garage List 2015 Ford Explorer ... [0.00] 2009 335I [0.00]	Sounds crazy but how were you on gas. if you get to low and you stomp on it you could be running lean and you go into limp mode. and a few minutes later your back to normal. it has happened to me once or twice. __________________ 09 335i Sport --MHD (Tune by Wedge )--Inlet System by Trueform Technologies --Tial BOV--Macht Schnell Catless Downpipes--AMS FMIC--Walbro 455 LPFP--HPF Gen2 Exhaust--SPEC Stage 3+ clutch / billet steel flywheel--
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