New to e90 platform pls help

TylerShubert24 · 03-06-2020, 11:13 PM

Could this be the cause of an aggressive misfire/hesitation under hard acceleration ? [IMG][/IMG]

coleybmw335 · 03-07-2020, 01:33 AM

Yes it could but it could also be coil pack, Have you got a code reader, see what cylinder the misfire is on, Swap the coil pack from where you are getting the misfire with a another coil pack from a another cylinder & see if the misfire moves to that cylinder, If so its your coil pack, If it doesn't it may be your spark plug, or it cold be a ejector.

clegg · 03-07-2020, 09:06 AM

How many miles on the plugs? But before anything, run a bottle of Techron in your gas. My 335i had a misfire bad enough to put it in limp mode. I ran the fuel system cleaner through from a empty tank. No more misfires. For $5 it's worth a try.

marvinstockman · 03-07-2020, 11:45 AM

First, do a search on spark plug color.

marvinstockman · 03-07-2020, 11:46 AM

Did you replace the plug, and do you still get a misfire?

Have you read your codes yet?

ctuna · 03-09-2020, 01:42 AM

Diagnostic Manuals Inpa/Ista D
https://bimmerprofs.com/diagnostics-inpa-part-1/
https://www.google.com/url?sa=t&rct=...7x8H3pN8h1fMuF
https://carmod.ru/files/icom/istad_en.pdf
https://www.e90post.com/forums/showthread.php?t=1681573
https://www.bimmerforums.com/forum/s...-P-actually-do
primary links
https://www.bimmerfest.com/forums/at...9&d=1539905743
https://www.e90post.com/forums/showthread.php?t=1681573

Moisture · 03-09-2020, 03:03 AM

Let me tell you, spark plugs should never look like that unless you got well over 100k miles on them. These cars run quite hot which will ruin gaskets, seals, plugs, coils. etc overtime.

Also, that white corrosion explains a lot as to what is going on inside your cylinder head. Like somebody mentioned, make sure to read up on spark plug colours and what that may indicate.

03-06-2020, 11:13 PM	#1
TylerShubert24 Private First Class 17 Rep 141 Posts Drives: 2007 BMW 335i Sedan Join Date: Feb 2020 Location: New Mexico iTrader: (0)	New to e90 platform pls help Could this be the cause of an aggressive misfire/hesitation under hard acceleration ? [IMG][/IMG] Attached Images
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03-07-2020, 01:33 AM	#2
coleybmw335 Private 11 Rep 82 Posts Drives: 2009 E92 335I DCT Join Date: Feb 2018 Location: Derby, England iTrader: (0)	Yes it could but it could also be coil pack, Have you got a code reader, see what cylinder the misfire is on, Swap the coil pack from where you are getting the misfire with a another coil pack from a another cylinder & see if the misfire moves to that cylinder, If so its your coil pack, If it doesn't it may be your spark plug, or it cold be a ejector.
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03-07-2020, 09:06 AM	#3
clegg First Lieutenant 87 Rep 301 Posts Drives: 335i E92, 435i F32,X5 F15 Join Date: Apr 2019 Location: O'Fallon, MO iTrader: (0)	How many miles on the plugs? But before anything, run a bottle of Techron in your gas. My 335i had a misfire bad enough to put it in limp mode. I ran the fuel system cleaner through from a empty tank. No more misfires. For $5 it's worth a try.
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03-07-2020, 11:45 AM	#4
marvinstockman Major 399 Rep 1,078 Posts Drives: 2011 BMW 328i Join Date: Aug 2015 Location: Rockville, MD iTrader: (0)	First, do a search on spark plug color.
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03-07-2020, 11:46 AM	#5
marvinstockman Major 399 Rep 1,078 Posts Drives: 2011 BMW 328i Join Date: Aug 2015 Location: Rockville, MD iTrader: (0)	Did you replace the plug, and do you still get a misfire? Have you read your codes yet?
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03-09-2020, 01:42 AM	#6
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Diagnostic Manuals Inpa/Ista D https://bimmerprofs.com/diagnostics-inpa-part-1/ https://www.google.com/url?sa=t&rct=...7x8H3pN8h1fMuF https://carmod.ru/files/icom/istad_en.pdf https://www.e90post.com/forums/showthread.php?t=1681573 https://www.bimmerforums.com/forum/s...-P-actually-do primary links https://www.bimmerfest.com/forums/at...9&d=1539905743 https://www.e90post.com/forums/showthread.php?t=1681573
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03-09-2020, 03:03 AM	#7
Moisture Private 27 Rep 87 Posts Drives: 2015 Mazda 6, 2020 Lexus NX300 Join Date: Feb 2020 Location: Toronto iTrader: (0)	Let me tell you, spark plugs should never look like that unless you got well over 100k miles on them. These cars run quite hot which will ruin gaskets, seals, plugs, coils. etc overtime. Also, that white corrosion explains a lot as to what is going on inside your cylinder head. Like somebody mentioned, make sure to read up on spark plug colours and what that may indicate.
	Appreciate 0 Quote