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      04-19-2020, 07:53 PM   #1
Marcoadj
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Bmw f30 335i misfire but no code!!

Hello i have a 2014 335i fbo on mhd. I experienced very choppy driving under light throttle but in wot it pulled hard. Later when i did a pull and 2nd gear thru 4th was fine but when i shifted into 5th my car misfired bit i dont get a code. So i changed spark plugs to ngk 97506 gapped at 0.022 and now it waymore choppy in light throttle.
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      04-19-2020, 07:57 PM   #2
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igintion coils
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      04-20-2020, 04:07 PM   #3
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Are you sure? My car only has 49k miles on it
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      04-21-2020, 11:00 AM   #4
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read the codes see what it pulls up
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      04-21-2020, 11:30 PM   #5
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I dont get any codes
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      04-22-2020, 11:13 AM   #6
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does it always misfire when u go 5th?
im leaning towards coils or tune
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      04-22-2020, 01:22 PM   #7
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Only misfired when i shift to 5th in wot. Since changing sparks the car now is more choppy.
I only did a few pulls and everytime it did it
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      04-22-2020, 01:24 PM   #8
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at idle it chops?
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      04-22-2020, 01:28 PM   #9
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It starts good but then idle gets choppy
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      04-22-2020, 01:29 PM   #10
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Do u think it could be due to having e30 mix in the tank for too long without being started
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      04-24-2020, 01:27 PM   #11
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idle is choppy?
unplug each ignition coil the engine should sound react when unplugged, if it has no effect that coil is bad
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      04-24-2020, 02:53 PM   #12
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Very lightly choppy. Every 10 -20 seconds it stutters when i drive and hit 60 mph my car starts shaking. Im curious why my cars misfires got worst after i changed plugs?
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      04-24-2020, 08:54 PM   #13
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well like i said do the ignition drop test at idle as you say it chops at idle.
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      04-24-2020, 09:30 PM   #14
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Quote:
Originally Posted by Marcoadj View Post
I dont get any codes
What code reader are you using?
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      04-24-2020, 11:30 PM   #15
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Quote:
Originally Posted by cfm56d7b View Post
Quote:
Originally Posted by Marcoadj View Post
I dont get any codes
What code reader are you using?
Quote:
Originally Posted by cfm56d7b View Post
Quote:
Originally Posted by Marcoadj View Post
I dont get any codes
What code reader are you using?
I dont get any codes as in i dont get any codes that popup in my dash or idrive.
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      04-25-2020, 12:18 AM   #16
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You need a device called code reader which connects to OBD port and reads stored fault codes. There is undoubtedly one stored reflecting symptoms you reported.

Foxwell / Schwaben NT510 is a reasonably priced code reader.
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      04-25-2020, 12:55 AM   #17
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Quote:
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You need a device called code reader which connects to OBD port and reads stored fault codes. There is undoubtedly one stored reflecting symptoms you reported.

Foxwell / Schwaben NT510 is a reasonably priced code reader.
I have one and on mhd when i read the codes i have none.
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      05-01-2020, 09:01 AM   #18
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so whats the outcome?
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      05-18-2020, 02:25 PM   #19
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Quote:
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so whats the outcome?
Im now getting these codes
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      10-16-2022, 04:29 AM   #20
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Quote:
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Quote:
Originally Posted by pongkin View Post
so whats the outcome?
Im now getting these codes
Hey did you ever fix the issue
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