[E92-B]

Car is stock still same problem.

[rbaldwin28]

I get those when at WOT over 6000rpm with procede tune. When I run stock, nothing. I still have not been able to find the cause.

[Mike@N54Tuning.com]

When did either of you change your spark plugs the last time?

Mike

[blacknbean]

i had a cylinder misfire on a stock car and it was the injectors

[badass335]

Originally Posted by rbaldwin28

I get those when at WOT over 6000rpm with procede tune. When I run stock, nothing. I still have not been able to find the cause.

Me too. Working with shiv to resolve.

[Jeff@TopGearSolutions]

Most of the time its sparkplugs, injectors, fuel pump, or coilpacks.

[rbaldwin28]

Originally Posted by Mike@N54Tuning.com

When did either of you change your spark plugs the last time?

Mike

4,000 miles ago. I used the OE plugs. That's the only thing I have ruled out because it did it even when they were brand new.

[rbaldwin28]

Originally Posted by badass335

Me too. Working with shiv to resolve.

Have you ever been able to data log the miss fire when it happens? I was thinking this could give some insight into what is going on.

[E92-B]

.

[badass335]

Originally Posted by rbaldwin28

Have you ever been able to data log the miss fire when it happens? I was thinking this could give some insight into what is going on.

I can get it to misfire recently pretty much everytime. I've sent logs as well. I'm running new plugs, new coil on cyl 6, new injector on cyl 6 and had a new engine block.
New plugs. 3weeks old BMW maintenance
new coil. I bought 2 extras just in case
new injector. BMW replaced under warranty 10months ago
new engine block. 10months ago. Due to damaged caused by subframe recall.

So can't be carbon buildup, plug related, coil related, injector related. What's left...

[badass335]

Originally Posted by E92_BJ

I have set my car map 0 and drove it around and it seems fine no more engine light.

Maybe it's a good time to replaced the sparked plug as well, what plugs do you guys recommend?

OE plugs. I run full stage 3 mods and OE plugs plugs is what I use. How old are your plugs?

[E92-B]

.

[Mike@N54Tuning.com]

Originally Posted by E92_BJ

I am at 54000km.

Do you think it's about time? I have ran the Jb3 for about a year.
But the whole winter i store my car.

I would said i have the tune for 10000km.

At 50,0000km I would definitely change the plugs...

Mike

[Clap135]

i don't buy this plug excuse, I have 31k, original plugs, never misfired in my life.

[badass335]

Originally Posted by E92_BJ

I am at 54000km.

Do you think it's about time? I have ran the Jb3 for about a year.
But the whole winter i store my car.

I would said i have the tune for 10000km.

I would say yes for sure. Time for a change. I have 60000ks andchanged it 5 times. A few were just in case.

[rbaldwin28]

I got new plugs at 42,000 and now I have 44,000 on the clock. I get a new fuel pump Monday so I will be able to rule that out by about Tuesday the 15Th. I drove it all day today with no issue of course when I have my lap top ready to go it mysteriously disappears. Last night it would do it 100% of the time over 6000rpm at WOT. I also remembered I was under a 1/4 tank last night and filled up this morning and it was fine.

[E92-B]

.

[badass335]

Originally Posted by Clap135

i don't buy this plug excuse, I have 31k, original plugs, never misfired in my life.

I do agree with you in part. In case with the OP, it's time but much too often we hear the plugs and coils are bad ... Bla bla. While I understand that driving habits, fuel octane, outside temps, climates all play factors on the wear and tear, come on now, how crappy are these cars to fail all these components????or are there other factors, or is it plain and simple tune related.

[rbaldwin28]

Originally Posted by badass335

I can get it to misfire recently pretty much everytime. I've sent logs as well. I'm running new plugs, new coil on cyl 6, new injector on cyl 6 and had a new engine block.
New plugs. 3weeks old BMW maintenance
new coil. I bought 2 extras just in case
new injector. BMW replaced under warranty 10months ago
new engine block. 10months ago. Due to damaged caused by subframe recall.

So can't be carbon buildup, plug related, coil related, injector related. What's left...

What was your gas gauge reading when it would miss fire every time? When was your last HPFP?

[badass335]

Originally Posted by E92_BJ

Alright, thanks for the heads up. Gonna get some plug from bmw this weekend.

Went for a drive with map 0 car and light never came back on. But will change the plug as well. Do you know how much do spark plugs go for?

I can run my car in valet mode and no misfires. My case is different from you though. Plugs usually run $7 - $9 a plug depending where you get them from. I noticed better idling and fuel consumption in my case when I replaced my first set. Up here in Canada, we get raped on plug costs. $24 a plug!!!

[rbaldwin28]

The OE plugs are $27.00 each at dealers here in Cali.

[badass335]

Originally Posted by rbaldwin28

What was your gas gauge reading when it would miss fire every time? When was your last HPFP?

Gas gauge usually between 3/4 and 1/2. My hpfp was replaced 2years ago. When BMW replaced my engine, they tested fuel pressure and it passed their tests. #6 injector failed and was replaced. I take my car in fully modded so the dealer can properly diagnose issues. I've taken my car in so many times, my car is a permanent fixture at the dealership! Usually they find no issues, hence why I think 'other' factors are causing them!