Coil Question N52

FlaPatsFan · 01-17-2018, 02:33 PM

Quick summery....2011 328i E91, Car is experiencing a sputter when I get on the gas. Not all the time but enough to know something is wrong. No codes are being thrown or check engine lights. Spark plugs are good. My hunch is a COIL, but don’t know which one. At 68.00 a coil rather not replace all of them if I dont have to. Has anyone had experience with this or know how to tell which coil is bad? I’m stumped 🤔

DaanBMW · 01-17-2018, 10:56 PM

If it's coil you'd get a code. (You can swap 1 at a time if you really have a bad coil and see which one's the culprit)

Did you clean you vanos solenoids ? I'd do that before anything else.

FlaPatsFan · 01-18-2018, 02:20 AM

That’s what I thought. But If a coil is going bad would it take a while for it to register a code? Only reason I say that is it’s not sputtering/hesitating all the time. I didn’t think of the vanos solenoids. I will try that. Thank you

El Cheapo Loco · 01-18-2018, 11:04 AM

Quote:

Originally Posted by FlaPatsFan

That’s what I thought. But If a coil is going bad would it take a while for it to register a code?

Yes, an occasional mistire will not always trigger a code. Just buy a spare coil and wait for the code.

FlaPatsFan · 01-18-2018, 11:43 AM

I’m probably going to just replace them all. It annoying since it’s not doing it all the time. I’m on the fence reference which coil brand to buy tho. Since I’m running a tune and performance mods I saw that Eldor was the brand to go with. But I found good prices for Delphi and Bosch....decisions decisions

boosthead · 01-18-2018, 12:17 PM

Your code scanner may capture pending codes also. I had a misfire issue, swapped coils between cylinders and did not immediately receive a CEL. I did however have a pending misfire code for the cylinder the suspected bad coil was swapped to. I replaced all 6 coils and called it a day. I changed the plugs too since it was apart.

FlaPatsFan · 01-18-2018, 12:47 PM

Quote:

Originally Posted by boosthead

Your code scanner may capture pending codes also. I had a misfire issue, swapped coils between cylinders and did not immediately receive a CEL. I did however have a pending misfire code for the cylinder the suspected bad coil was swapped to. I replaced all 6 coils and called it a day. I changed the plugs too since it was apart.

Plugs are good done 67,000. Did doing all the coils solve your problem? I was getting code 2A78 and replaced the Exhaust Vanos solenoid. But car is still sputtering/hesitating when WOT. But no codes, it’s so strange.

boosthead · 01-19-2018, 08:22 AM

Coils did resolve my issue. But in my case, I did have a misfire code. It just didnt come back immediately when I swapped coils between cylinders.

FlaPatsFan · 01-19-2018, 10:52 AM

I wound up getting 6 new Delphi coils for 144.00 hopefully this will resolve the problem. Great price just have to wait for them to here. I read that if you are running a tune these have a tendency to go bad quicker. Fingers crossed

M3nic · 01-19-2018, 05:27 PM

Quote:

Originally Posted by FlaPatsFan

I wound up getting 6 new Delphi coils for 144.00 hopefully this will resolve the problem. Great price just have to wait for them to here. I read that if you are running a tune these have a tendency to go bad quicker. Fingers crossed

Quote:

Originally Posted by FlaPatsFan

I wound up getting 6 new Delphi coils for 144.00 hopefully this will resolve the problem. Great price just have to wait for them to here. I read that if you are running a tune these have a tendency to go bad quicker. Fingers crossed

Put the plugs in while you're at it spark plugs go right under he coils . I did both this week- well an Indy did thanks to the helpful people on this site and Bimmerfest.

Spitfire007 · 01-19-2018, 05:42 PM

Quote:

Originally Posted by FlaPatsFan

I wound up getting 6 new Delphi coils for 144.00 hopefully this will resolve the problem. Great price just have to wait for them to here. I read that if you are running a tune these have a tendency to go bad quicker. Fingers crossed

Do the plugs as well.
Should clear things up nicely for you.

FlaPatsFan · 01-19-2018, 06:04 PM

Quote:

Originally Posted by Spitfire007

Do the plugs as well.
Should clear things up nicely for you.

I’m considering doing the plugs, even tho I did them 15,000 miles ago. I’m starting to think all the mods and tune are wearing these parts out faster.

Spitfire007 · 01-20-2018, 05:22 AM

Quote:

Originally Posted by FlaPatsFan

Quote:

Originally Posted by Spitfire007

Do the plugs as well.
Should clear things up nicely for you.

I’m considering doing the plugs, even tho I did them 15,000 miles ago. I’m starting to think all the mods and tune are wearing these parts out faster.

15000 miles ago? Nah. I wouldn't bother then, as long as they look good.

I got 87000 out of mine on an I modded car. Only 1 looked bad, the rest were fine.

FlaPatsFan · 01-20-2018, 06:21 AM

Quote:

Originally Posted by Spitfire007

15000 miles ago? Nah. I wouldn't bother then, as long as they look good.

I got 87000 out of mine on an I modded car. Only 1 looked bad, the rest were fine.

Thanks....That’s my thinking, unless one looks bad. Doing the coils but will check the plugs at the same time. Out of curiosity what plugs you using?

Spitfire007 · 01-20-2018, 08:07 AM

Quote:

Originally Posted by FlaPatsFan

Quote:

Originally Posted by Spitfire007

15000 miles ago? Nah. I wouldn't bother then, as long as they look good.

I got 87000 out of mine on an I modded car. Only 1 looked bad, the rest were fine.

Thanks....That’s my thinking, unless one looks bad. Doing the coils but will check the plugs at the same time. Out of curiosity what plugs you using?

Whatever OEM Bimmerparts sent me. I think they're NGK.
Never had a problem with that company.

I don't overthink this car. I keep up the regular maintenance and change all the fluids regularly, but otherwise I beat on it and don't baby it.

Just crossed 88000 miles with only 1 O2 sensor going bad. That's IT.

As far as I'm concerned, this thing is bulletproof....there goes the karma...

3002 tii · 01-20-2018, 08:58 AM

Quote:

Originally Posted by FlaPatsFan

I’m considering doing the plugs, even tho I did them 15,000 miles ago. I’m starting to think all the mods and tune are wearing these parts out faster.

Agree with spitfire, plugs should be good till 90-100k. I only did mine earlier because my coils went bad at 65.

FlaPatsFan · 01-20-2018, 09:29 AM

Cool thanks guys. I’m getting a few NGK plugs just in case. Do you guys agree that with the tune and engine mods the plugs and coils wear quicker?

DaanBMW · 01-20-2018, 11:22 AM

quicker yes. 15k instead of 100k no.

FlaPatsFan · 01-20-2018, 05:54 PM

Quote:

Originally Posted by DaanBMW

quicker yes. 15k instead of 100k no.

Yeah 15,000 would be way to fast. Hopefully the new coils should do the trick. I should be installing them this week. I will update the thread after. Thanks for everyone’s input

JuniorB · 01-21-2018, 08:35 PM

Quote:

Originally Posted by FlaPatsFan

Quick summery....2011 328i E91, Car is experiencing a sputter when I get on the gas. Not all the time but enough to know something is wrong. No codes are being thrown or check engine lights. Spark plugs are good. My hunch is a COIL, but don’t know which one. At 68.00 a coil rather not replace all of them if I dont have to. Has anyone had experience with this or know how to tell which coil is bad? I’m stumped 🤔

Any out of parameter electrical event will trigger an alert, wether it's pending or confirmed. There can be other things that will make a car studder, spudder, shudder, etc. Usually a misfire will pop a pending if it's had an event in a cylinder. Have you looked at your fuel system?

FlaPatsFan · 01-21-2018, 10:02 PM

Quote:

Originally Posted by JuniorB

Any out of parameter electrical event will trigger an alert, wether it's pending or confirmed. There can be other things that will make a car studder, spudder, shudder, etc. Usually a misfire will pop a pending if it's had an event in a cylinder. Have you looked at your fuel system?

Not really other then running some Lucus fuel system cleaner. Which I did and nothing changed. What are you thinking? Fuel filter? Injector?

StealYourFace · 01-23-2018, 06:21 PM

Here's tempting fate, 190,000 miles on orig coils

01-17-2018, 02:33 PM	#1
FlaPatsFan Major 750 Rep 1,149 Posts Drives: 2011 328i wagon Join Date: Apr 2017 Location: Florida iTrader: (0)	Coil Question N52 Quick summery....2011 328i E91, Car is experiencing a sputter when I get on the gas. Not all the time but enough to know something is wrong. No codes are being thrown or check engine lights. Spark plugs are good. My hunch is a COIL, but don’t know which one. At 68.00 a coil rather not replace all of them if I dont have to. Has anyone had experience with this or know how to tell which coil is bad? I’m stumped 🤔
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01-17-2018, 10:56 PM	#2
DaanBMW Captain 84 Rep 777 Posts Drives: 2007 328i coupe Join Date: Jun 2011 Location: Portland, OR iTrader: (1)	If it's coil you'd get a code. (You can swap 1 at a time if you really have a bad coil and see which one's the culprit) Did you clean you vanos solenoids ? I'd do that before anything else. __________________ 328i Sports Pkg, Michelin PSS on Staggered 18" OZ Ultraleggeras . BMS Powerbox. Cyba scoops + Rev motoring intake hose + charcoal delete. Wavetrac LSD . M3: subframe bushings + sways + control arms (fr & rr). Meyle rear toe arms. M3 diff fr bushings . BMW Perf: v2 springs + v1 dampers. Valeo SMFW+clutch. 034 MotorSport engine mounts . Short Shifter + Turner PU bearing + ZHP M weighted shift knob. CDV delete
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01-18-2018, 02:20 AM	#3
FlaPatsFan Major 750 Rep 1,149 Posts Drives: 2011 328i wagon Join Date: Apr 2017 Location: Florida iTrader: (0)	That’s what I thought. But If a coil is going bad would it take a while for it to register a code? Only reason I say that is it’s not sputtering/hesitating all the time. I didn’t think of the vanos solenoids. I will try that. Thank you
	Appreciate 0 Quote

01-18-2018, 11:43 AM	#5
FlaPatsFan Major 750 Rep 1,149 Posts Drives: 2011 328i wagon Join Date: Apr 2017 Location: Florida iTrader: (0)	I’m probably going to just replace them all. It annoying since it’s not doing it all the time. I’m on the fence reference which coil brand to buy tho. Since I’m running a tune and performance mods I saw that Eldor was the brand to go with. But I found good prices for Delphi and Bosch....decisions decisions
	Appreciate 0 Quote

01-18-2018, 12:17 PM	#6
boosthead Private First Class 40 Rep 124 Posts Drives: 2009 328ix Join Date: Jan 2017 Location: VA iTrader: (0)	Your code scanner may capture pending codes also. I had a misfire issue, swapped coils between cylinders and did not immediately receive a CEL. I did however have a pending misfire code for the cylinder the suspected bad coil was swapped to. I replaced all 6 coils and called it a day. I changed the plugs too since it was apart.
	Appreciate 0 Quote

01-19-2018, 08:22 AM	#8
boosthead Private First Class 40 Rep 124 Posts Drives: 2009 328ix Join Date: Jan 2017 Location: VA iTrader: (0)	Coils did resolve my issue. But in my case, I did have a misfire code. It just didnt come back immediately when I swapped coils between cylinders.
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01-19-2018, 10:52 AM	#9
FlaPatsFan Major 750 Rep 1,149 Posts Drives: 2011 328i wagon Join Date: Apr 2017 Location: Florida iTrader: (0)	I wound up getting 6 new Delphi coils for 144.00 hopefully this will resolve the problem. Great price just have to wait for them to here. I read that if you are running a tune these have a tendency to go bad quicker. Fingers crossed
	Appreciate 0 Quote

01-20-2018, 09:29 AM	#17
FlaPatsFan Major 750 Rep 1,149 Posts Drives: 2011 328i wagon Join Date: Apr 2017 Location: Florida iTrader: (0)	Cool thanks guys. I’m getting a few NGK plugs just in case. Do you guys agree that with the tune and engine mods the plugs and coils wear quicker?
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01-20-2018, 11:22 AM	#18
DaanBMW Captain 84 Rep 777 Posts Drives: 2007 328i coupe Join Date: Jun 2011 Location: Portland, OR iTrader: (1)	quicker yes. 15k instead of 100k no. __________________ 328i Sports Pkg, Michelin PSS on Staggered 18" OZ Ultraleggeras . BMS Powerbox. Cyba scoops + Rev motoring intake hose + charcoal delete. Wavetrac LSD . M3: subframe bushings + sways + control arms (fr & rr). Meyle rear toe arms. M3 diff fr bushings . BMW Perf: v2 springs + v1 dampers. Valeo SMFW+clutch. 034 MotorSport engine mounts . Short Shifter + Turner PU bearing + ZHP M weighted shift knob. CDV delete
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01-23-2018, 06:21 PM	#22
StealYourFace Lieutenant Colonel 261 Rep 1,794 Posts Drives: F30 328i M 6mt, E36 M3 Join Date: Jul 2009 Location: Shakedown Street, Buffalo NY iTrader: (1)	Here's tempting fate, 190,000 miles on orig coils __________________
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