after 2 run afr too lean m5 f10

wheelpro · 06-10-2017, 10:20 PM

after 1 or 2 run with map 1,2,8
I feel my car not running well
and when I make data log I see
afr going up too 15,16
and engine temperature too high
looking for turbos its red
I changed spark plugs to be safe
but still bad
my engine too hot cause there is no fuel enough
now I am afraid from pressure pump , or high pressure pump,
I read rail pressure señor at idle its 5 bar looking to. set point ok
but my idle play up and down
why after 1 or 2 run. my car going to die ?
any one meet this issue on s63 ?
thanks

Msizzle · 06-10-2017, 11:27 PM

do you have a competition pkg?

wheelpro · 06-10-2017, 11:41 PM

Quote:

Originally Posted by Msizzle

do you have a competition pkg?

NO

ur20v · 06-11-2017, 05:33 AM

If using JB4 and running 22psi plus you may not have enough fuel head room on a non-CP car, some do (like mine) some don't (like yours), you need meth as a top-up to keep fuel trims in check plus add cooling.

wheelpro · 06-11-2017, 08:02 AM

Quote:

Originally Posted by ur20v

If using JB4 and running 22psi plus you may not have enough fuel head room on a non-CP car, some do (like mine) some don't (like yours), you need meth as a top-up to keep fuel trims in check plus add cooling.

Now after 1 run afr too lean on map 0 too

ARC550 · 06-11-2017, 08:40 AM

Go to your local tuner and have them diagnose. Play it safe.

wheelpro · 06-11-2017, 10:11 AM

Quote:

Originally Posted by ARC550

Go to your local tuner and have them diagnose. Play it safe.

Map 0 = stock
Did you hear some one change fuel pump low or high or injectors !

TMR · 06-11-2017, 11:36 PM

You could have got a bad tank of gas.

wheelpro · 06-12-2017, 10:48 AM

Quote:

Originally Posted by TMR

You could have got a bad tank of gas.

changed gas twice

wheelpro · 06-12-2017, 11:07 PM

mission done

ur20v · 06-13-2017, 04:47 AM

And what was the issue... HPFP or fuel rail or bad injectors?

wheelpro · 06-16-2017, 10:00 PM

Bad injectors

epiphanyray · 09-22-2017, 05:13 PM

Quote:

Originally Posted by wheelpro

Bad injectors

Once you changed your "bad injectors" did you redyno and see what your AFR is like? I think I may be having a similar issue. Running lean, and my AFR refuses to go below 14.7-15 in stock flash.

wheelpro · 09-23-2017, 09:24 PM

Quote:

Originally Posted by epiphanyray

Once you changed your "bad injectors" did you redyno and see what your AFR is like? I think I may be having a similar issue. Running lean, and my AFR refuses to go below 14.7-15 in stock flash.

Did you use meth kit !!
Whats your setup !

AWF10M5 · 09-24-2017, 12:06 AM

did u have any symptom of bad injector

if so can u share and describe

thx

06-10-2017, 10:20 PM	#1
wheelpro Lieutenant 176 Rep 594 Posts Drives: M5,F10,JB4,DP,CP,METH,SSP Join Date: Sep 2012 Location: CAIRO iTrader: (0)	after 2 run afr too lean m5 f10 after 1 or 2 run with map 1,2,8 I feel my car not running well and when I make data log I see afr going up too 15,16 and engine temperature too high looking for turbos its red I changed spark plugs to be safe but still bad my engine too hot cause there is no fuel enough now I am afraid from pressure pump , or high pressure pump, I read rail pressure señor at idle its 5 bar looking to. set point ok but my idle play up and down why after 1 or 2 run. my car going to die ? any one meet this issue on s63 ? thanks Last edited by wheelpro; 06-10-2017 at 10:36 PM..
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06-10-2017, 11:27 PM	#2
Msizzle Lieutenant 165 Rep 402 Posts Drives: 2013 M6 Coupe Join Date: Mar 2015 Location: Long Island, NY iTrader: (0)	do you have a competition pkg?
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06-11-2017, 05:33 AM	#4
ur20v Captain 184 Rep 788 Posts Drives: F10 M5 Join Date: Apr 2016 Location: WA Australia iTrader: (0)	If using JB4 and running 22psi plus you may not have enough fuel head room on a non-CP car, some do (like mine) some don't (like yours), you need meth as a top-up to keep fuel trims in check plus add cooling.
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06-11-2017, 08:40 AM	#6
ARC550 Major 446 Rep 1,300 Posts Drives: M3, X5, 720s, X5, 750xi Join Date: Nov 2013 Location: New York iTrader: (0)	Go to your local tuner and have them diagnose. Play it safe.
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06-11-2017, 11:36 PM	#8
TMR Brigadier General 394 Rep 3,161 Posts Drives: M3 Join Date: Jun 2008 Location: Torrance iTrader: (12)	You could have got a bad tank of gas. __________________ 2015 M3 BPM Tuned, Eibach, Magnaflow and more www.tmrmzine.com/m3/f80 SOLD E92 Slēk Carbon Fiber Widebody M3 www.tmrmzine.com/m3/slek/ SOLD E92 335i Stage 3+ with all the toys www.tmrmzine.com/335/ SOLD E39 M5 Modded, What a great car! www.tmrmzine.com/m5/
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06-12-2017, 11:07 PM	#10
wheelpro Lieutenant 176 Rep 594 Posts Drives: M5,F10,JB4,DP,CP,METH,SSP Join Date: Sep 2012 Location: CAIRO iTrader: (0)	mission done
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06-13-2017, 04:47 AM	#11
ur20v Captain 184 Rep 788 Posts Drives: F10 M5 Join Date: Apr 2016 Location: WA Australia iTrader: (0)	And what was the issue... HPFP or fuel rail or bad injectors?
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06-16-2017, 10:00 PM	#12
wheelpro Lieutenant 176 Rep 594 Posts Drives: M5,F10,JB4,DP,CP,METH,SSP Join Date: Sep 2012 Location: CAIRO iTrader: (0)	Bad injectors
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09-24-2017, 12:06 AM	#15
AWF10M5 Banned 225 Rep 553 Posts Drives: f10 m5 Join Date: Dec 2016 Location: Bikini bottom iTrader: (7)	did u have any symptom of bad injector if so can u share and describe thx
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