Car shakes when accelerating hard.

Diegov209 · 09-04-2018, 06:08 PM

Hey guys so for some reason out of no where my car everytime I press on the accelerator hard it shakes like crazy and misfires. I did replace the lpfp to a stg 2 but this happened even before it as well bad. I can cruise in low rpms but once I get into high rpm's its no bueno at all. I already opened a ticket as well for bm3 support Halim says it could be my hpfp crashing. Also flashed to stock as well and still have the same problem so i gots no idea what it is honestly.These are the codes I get.

insanecoder · 09-04-2018, 07:41 PM

replace those plugs esp on cylinder 3

Diegov209 · 09-04-2018, 07:44 PM

Quote:

Originally Posted by insanecoder

replace those plugs esp on cylinder 3

Im about to do that right now lol what about the catalyst code any ideas on that maybe 02 sensor?

insanecoder · 09-04-2018, 08:11 PM

detecting lean but it could be plug
would change the plugs to start
run 93 octane or higher if possible

Diegov209 · 09-04-2018, 08:14 PM

Quote:

Originally Posted by insanecoder

detecting lean but it could be plug
would change the plugs to start
run 93 octane or higher if possible

Gotcha only got 91 in my area ill run e85 if anything. Ill keep you updated thanks for the help bro.

insanecoder · 09-04-2018, 08:22 PM

Quote:

Originally Posted by Diegov209

Gotcha only got 91 in my area ill run e85 if anything. Ill keep you updated thanks for the help bro.

yea maybe the chargepipe gets checked next

Diegov209 · 09-05-2018, 11:14 AM

UPDATE IT WAS THE SPARK PLUGS

mynameisname · 10-30-2018, 10:14 AM

same issue here. Changed my spark plugs yesterday but still misfiring. I thing I'll try coils next.

09-04-2018, 06:08 PM	#1
Diegov209 Captain 165 Rep 657 Posts Drives: 540i Xdrive Join Date: Mar 2017 Location: Riverbank,CA iTrader: (0)	Car shakes when accelerating hard. Hey guys so for some reason out of no where my car everytime I press on the accelerator hard it shakes like crazy and misfires. I did replace the lpfp to a stg 2 but this happened even before it as well bad. I can cruise in low rpms but once I get into high rpm's its no bueno at all. I already opened a ticket as well for bm3 support Halim says it could be my hpfp crashing. Also flashed to stock as well and still have the same problem so i gots no idea what it is honestly.These are the codes I get. __________________ Current: 2017 Bmw 540i M sport bluestone metallic Previous:F30 328i 2012 PWG: FBO Vrsf 6 stepped fmic, Afe intake, Catless DP ER, FTP CP's, FTP turbo inlet, GFB DV+, Gplus oil cooler, BM3 stg 2 tune, Cary Jordan E50 tuned stock fuel system.
	Appreciate 0 Tweet Quote

09-04-2018, 07:41 PM	#2
insanecoder Banned 1410 Rep 3,211 Posts Drives: 340isDrive Join Date: May 2016 Location: East Coast USA iTrader: (0)	replace those plugs esp on cylinder 3
	Appreciate 1 Diegov209164.50 Quote

09-04-2018, 08:11 PM	#4
insanecoder Banned 1410 Rep 3,211 Posts Drives: 340isDrive Join Date: May 2016 Location: East Coast USA iTrader: (0)	detecting lean but it could be plug would change the plugs to start run 93 octane or higher if possible
	Appreciate 0 Quote

09-05-2018, 11:14 AM	#7
Diegov209 Captain 165 Rep 657 Posts Drives: 540i Xdrive Join Date: Mar 2017 Location: Riverbank,CA iTrader: (0)	UPDATE IT WAS THE SPARK PLUGS __________________ Current: 2017 Bmw 540i M sport bluestone metallic Previous:F30 328i 2012 PWG: FBO Vrsf 6 stepped fmic, Afe intake, Catless DP ER, FTP CP's, FTP turbo inlet, GFB DV+, Gplus oil cooler, BM3 stg 2 tune, Cary Jordan E50 tuned stock fuel system.
	Appreciate 0 Quote

10-30-2018, 10:14 AM	#8
mynameisname Private 16 Rep 91 Posts Drives: FBO F30 328i, Lexus LC500 Join Date: Apr 2016 Location: SF Bay Area iTrader: (0)	same issue here. Changed my spark plugs yesterday but still misfiring. I thing I'll try coils next.
	Appreciate 0 Quote