17psi+ misfire

gzim335 · 11-16-2014, 06:10 PM

Running pump flash jb4 93 n meth,up to 15psi no misfire,as soon as i switch to map7 or map3 40add it misfires
Plugs have about 8k on m,coils r original only replaced cyl1 and 2 coil cuz of previous misfires.
My question is can a post cat 02 sensor cause misfires?i have new ngk plugs and new coils that i will try to install tom.

335NJ · 11-16-2014, 06:21 PM

Have you tried moving those coils to see if it follows?

gzim335 · 11-16-2014, 06:24 PM

Quote:

Originally Posted by 335NJ

Have you tried moving those coils to see if it follows?

Have not tried,first code was couple days ago same 02 sensor n only cyl3 misfire and now again cyl3 and cyl5 with o2 post cat bank2

335is808 · 11-17-2014, 04:51 PM

same thing with my car, except on cobb. When i try to run 18+ it missfires. Please update me with what was wrong!

TheYuriPanda · 11-17-2014, 06:17 PM

Fail fail psi is set at 17. Make sure to increase it if you plan to go over.

gzim335 · 11-17-2014, 06:43 PM

Nothing set at 17psi i have ran 20 psi without issues in the past

mike@x-ph.com · 11-17-2014, 08:07 PM

Send Terry a log or 2

gzim335 · 11-17-2014, 09:09 PM

Installed ngk plugs a step colder,and also replaced coil #3 and #5 and misfire is gone
These r the old plugs from left to right 1-6 they had about 8k tuned miles

HouseN54 · 11-17-2014, 09:46 PM

Switch to NGK and re-gap to 25, this solved my high psi misfire issues and start up misfires

gzim335 · 11-17-2014, 11:05 PM

Quote:

Originally Posted by HouseN54

Switch to NGK and re-gap to 25, this solved my high psi misfire issues and start up misfires

I regaped to 0.22

11-16-2014, 06:10 PM	#1
gzim335 Captain 148 Rep 965 Posts Drives: e92 m3 Join Date: Feb 2011 Location: staten island ny iTrader: (4) Garage List 2007/1 e90 335i [2.00]	17psi+ misfire Running pump flash jb4 93 n meth,up to 15psi no misfire,as soon as i switch to map7 or map3 40add it misfires Plugs have about 8k on m,coils r original only replaced cyl1 and 2 coil cuz of previous misfires. My question is can a post cat 02 sensor cause misfires?i have new ngk plugs and new coils that i will try to install tom. Attached Images __________________ e92 m3 dct gintani stage 2+ full ethanol custom pulley and meth kw clubsport,ap racing radical,volk te37sl,akrapovic rear,recaro profi xl,voltphreaks battery
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11-16-2014, 06:21 PM	#2
335NJ Colonel 533 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	Have you tried moving those coils to see if it follows?
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11-17-2014, 04:51 PM	#4
335is808 Second Lieutenant 19 Rep 266 Posts Drives: 2011 335is Join Date: Oct 2013 Location: hawaii iTrader: (1)	same thing with my car, except on cobb. When i try to run 18+ it missfires. Please update me with what was wrong!
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11-17-2014, 06:17 PM	#5
TheYuriPanda First Lieutenant 74 Rep 390 Posts Drives: 335i XDrive E90 2010 Join Date: Aug 2014 Location: Colorado iTrader: (0)	Fail fail psi is set at 17. Make sure to increase it if you plan to go over. __________________ My Build Thread: http://www.e90post.com/forums/showth...8#post16918878
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11-17-2014, 06:43 PM	#6
gzim335 Captain 148 Rep 965 Posts Drives: e92 m3 Join Date: Feb 2011 Location: staten island ny iTrader: (4) Garage List 2007/1 e90 335i [2.00]	Nothing set at 17psi i have ran 20 psi without issues in the past __________________ e92 m3 dct gintani stage 2+ full ethanol custom pulley and meth kw clubsport,ap racing radical,volk te37sl,akrapovic rear,recaro profi xl,voltphreaks battery
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11-17-2014, 08:07 PM	#7
mike@x-ph.com BimmerPost Supporting Vendor 24484 Rep 191,471 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Send Terry a log or 2 __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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11-17-2014, 09:09 PM	#8
gzim335 Captain 148 Rep 965 Posts Drives: e92 m3 Join Date: Feb 2011 Location: staten island ny iTrader: (4) Garage List 2007/1 e90 335i [2.00]	Installed ngk plugs a step colder,and also replaced coil #3 and #5 and misfire is gone These r the old plugs from left to right 1-6 they had about 8k tuned miles Attached Images __________________ e92 m3 dct gintani stage 2+ full ethanol custom pulley and meth kw clubsport,ap racing radical,volk te37sl,akrapovic rear,recaro profi xl,voltphreaks battery
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11-17-2014, 09:46 PM	#9
HouseN54 Lieutenant 106 Rep 483 Posts Drives: E92 coupe Join Date: Jan 2014 Location: Buffalo iTrader: (2)	Switch to NGK and re-gap to 25, this solved my high psi misfire issues and start up misfires
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