Still need advice :) Help me diagnose this problem please

3pointohhhh · 10-31-2015, 02:11 PM

Engine mods
VRSF catless dps
Jb4
Bms intakes
VRSF chargepipe w/tial bov

I was out driving this morning and all of a sudden my car felt like it was having a misfire. It didn't leave me stranded, I was able to drive it fine. But it kept feeling like it was having a hiccup. It began to have a very small flutter while idling as well. No check engine light came on. I just drove the car home and parked it so as not exacerbate the issue.
I have 83000 miles. I did spark plugs and coil packs around 69000. I did valve cover, ofh gasket and Walnut blast a few thousand miles ago. I don't drive my car that often and drive it like an old man when I do. I have the jb4 with USB so if logging will help I can try that. Does this sound like the hpfp, or more like an injector? I'm going to go drive it and see if I can get a cell to come on.

N54Society · 10-31-2015, 02:14 PM

Check your spark plugs to see if any of them smell like fuel and are blacked out. That will be an indicator that your injector for that cylinder is bad.

3pointohhhh · 10-31-2015, 02:17 PM

Ok thanks.

mike@x-ph.com · 10-31-2015, 02:37 PM

Post some logs and check if there are any codes stored

Abax335 · 10-31-2015, 02:40 PM

Quote:

Originally Posted by vbp6us

Check your spark plugs to see if any of them smell like fuel and are blacked out. That will be an indicator that your injector for that cylinder is bad.

This. Otherwise I would say carbon blasting but you did it.

Can be a coil failing as well. They are big piles of crap

3pointohhhh · 11-02-2015, 12:49 PM

So I'm going out to log but I'm having issues with "Failed: com4"
I used the dash to get the code and got 29d2 which I believe is misfire cylinder 6. So now I need to figure out which component is causing it.

Got everything to work.
2E35 Injection valve cylinder 6, input signal. Does that mean I have a bad injector?

jjbmuu · 11-03-2015, 08:57 AM

I would say yes, take it out along with the spark plug, if they look wet or slimy swap the injector out.

Mike@N54Tuning.com · 11-03-2015, 09:56 AM

Quote:

Originally Posted by J.J4ck0wsk1

I would say yes, take it out along with the spark plug, if they look wet or slimy swap the injector out.

Ya check for leaking injector.. Its easy to spot.

Mike

3pointohhhh · 11-03-2015, 01:25 PM

I took a quick glance yesterday. I didn't have time to remove the cowl and get to the 6th injector. I will later. But just glancing at it I could see what looked like oil on the injector, so there's a good chance my catch can line is leaking or something.

3pointohhhh · 11-03-2015, 11:10 PM

So I took the cowl off and inspected the area and I was mistaken. Must have been the shadows and the slight copper color on parts of the fuel line that made me think there was oil in the area. It is completely clean.
Do I bite the bullet and order an injector? Is there a way for me to test and make sure it's bad? Should I swap two injectors and see if the misfire moves?

jjbmuu · 11-03-2015, 11:50 PM

Pull the plug for cylinder 6 if the threads/tip are wet with a watery looking substance it's fuel and you need to replace that injector to remedy your issue.

3pointohhhh · 11-04-2015, 01:32 AM

Quote:

Originally Posted by J.J4ck0wsk1

Pull the plug for cylinder 6 if the threads/tip are wet with a watery looking substance it's fuel and you need to replace that injector to remedy your issue.

Sweet. That was the info I was looking for thanks! Now is the injector just a drop in part? Why was I reading about needing programming for injectors? I can just put a new one in and call it a day right?

JDuke335i · 11-04-2015, 03:08 AM

Quote:

Originally Posted by 3pointohhhh

Quote:

Originally Posted by J.J4ck0wsk1

Pull the plug for cylinder 6 if the threads/tip are wet with a watery looking substance it's fuel and you need to replace that injector to remedy your issue.

Sweet. That was the info I was looking for thanks! Now is the injector just a drop in part? Why was I reading about needing programming for injectors? I can just put a new one in and call it a day right?

No , first you will have to see what index your current injectors are , and you will still have to program it.
N54 Injector Swap & Coding Diy! http://www.e90post.com/forums/showthread.php?t=651538

3pointohhhh · 11-04-2015, 01:46 PM

Quote:

Originally Posted by JDuke335i

No , first you will have to see what index your current injectors are , and you will still have to program it.
N54 Injector Swap & Coding Diy! http://www.e90post.com/forums/showthread.php?t=651538

Ugh. I knew this was going to be a pita.

JDuke335i · 11-04-2015, 03:13 PM

Quote:

Originally Posted by 3pointohhhh

Quote:

Originally Posted by JDuke335i

No , first you will have to see what index your current injectors are , and you will still have to program it.
N54 Injector Swap & Coding Diy! http://www.e90post.com/forums/showthread.php?t=651538

Ugh. I knew this was going to be a pita.

Yea it would be nice if you could just swap one out and be done with it

3pointohhhh · 11-04-2015, 04:05 PM

Yeah this will be the first maintenance I have had to do that will require unnecessary work imo, aside from the oil filter housing gasket having the dumbest design ever, of course.

10-31-2015, 02:11 PM	#1
3pointohhhh Second Lieutenant 14 Rep 208 Posts Drives: 2018 M550i Join Date: Mar 2014 Location: Everett, Wa iTrader: (0)	Still need advice :) Help me diagnose this problem please Engine mods VRSF catless dps Jb4 Bms intakes VRSF chargepipe w/tial bov I was out driving this morning and all of a sudden my car felt like it was having a misfire. It didn't leave me stranded, I was able to drive it fine. But it kept feeling like it was having a hiccup. It began to have a very small flutter while idling as well. No check engine light came on. I just drove the car home and parked it so as not exacerbate the issue. I have 83000 miles. I did spark plugs and coil packs around 69000. I did valve cover, ofh gasket and Walnut blast a few thousand miles ago. I don't drive my car that often and drive it like an old man when I do. I have the jb4 with USB so if logging will help I can try that. Does this sound like the hpfp, or more like an injector? I'm going to go drive it and see if I can get a cell to come on. Last edited by 3pointohhhh; 11-03-2015 at 11:11 PM..
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10-31-2015, 02:14 PM	#2
N54Society Major Private First Class 449 Rep 1,327 Posts Drives: 2010 E90 335i M Sport Join Date: Mar 2014 Location: US, NA, Earth, Milky Way Galaxy iTrader: (2)	Check your spark plugs to see if any of them smell like fuel and are blacked out. That will be an indicator that your injector for that cylinder is bad. __________________ 2008 E92 335i 6MT: FBO + MMP Silicone Inlets \| Stage 1 LPFP \| 335is clutch + MFactory SMFW \| Custom BuraQ + MHD tune \| 3.5Bar N20 sensor [SOLD] 2010 E90 335i M-Sport AT: 5" Stepped FMIC, Stage 2 LPFP - MHD V7 E60 Tune running 100% E85 - VRSF DPs
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10-31-2015, 02:17 PM	#3
3pointohhhh Second Lieutenant 14 Rep 208 Posts Drives: 2018 M550i Join Date: Mar 2014 Location: Everett, Wa iTrader: (0)	Ok thanks.
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10-31-2015, 02:37 PM	#4
mike@x-ph.com BimmerPost Supporting Vendor 24198 Rep 190,807 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Post some logs and check if there are any codes stored __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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11-02-2015, 12:49 PM	#6
3pointohhhh Second Lieutenant 14 Rep 208 Posts Drives: 2018 M550i Join Date: Mar 2014 Location: Everett, Wa iTrader: (0)	So I'm going out to log but I'm having issues with "Failed: com4" I used the dash to get the code and got 29d2 which I believe is misfire cylinder 6. So now I need to figure out which component is causing it. Got everything to work. 2E35 Injection valve cylinder 6, input signal. Does that mean I have a bad injector? Last edited by 3pointohhhh; 11-02-2015 at 01:04 PM..
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11-03-2015, 08:57 AM	#7
jjbmuu 4ut0strd4 47 Rep 223 Posts Drives: 08 AW E92 335i 6 Speed Join Date: Nov 2011 Location: Florida iTrader: (0)	I would say yes, take it out along with the spark plug, if they look wet or slimy swap the injector out.
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11-03-2015, 01:25 PM	#9
3pointohhhh Second Lieutenant 14 Rep 208 Posts Drives: 2018 M550i Join Date: Mar 2014 Location: Everett, Wa iTrader: (0)	I took a quick glance yesterday. I didn't have time to remove the cowl and get to the 6th injector. I will later. But just glancing at it I could see what looked like oil on the injector, so there's a good chance my catch can line is leaking or something.
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11-03-2015, 11:10 PM	#10
3pointohhhh Second Lieutenant 14 Rep 208 Posts Drives: 2018 M550i Join Date: Mar 2014 Location: Everett, Wa iTrader: (0)	So I took the cowl off and inspected the area and I was mistaken. Must have been the shadows and the slight copper color on parts of the fuel line that made me think there was oil in the area. It is completely clean. Do I bite the bullet and order an injector? Is there a way for me to test and make sure it's bad? Should I swap two injectors and see if the misfire moves?
	Appreciate 0 Quote

11-03-2015, 11:50 PM	#11
jjbmuu 4ut0strd4 47 Rep 223 Posts Drives: 08 AW E92 335i 6 Speed Join Date: Nov 2011 Location: Florida iTrader: (0)	Pull the plug for cylinder 6 if the threads/tip are wet with a watery looking substance it's fuel and you need to replace that injector to remedy your issue.
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11-04-2015, 04:05 PM	#16
3pointohhhh Second Lieutenant 14 Rep 208 Posts Drives: 2018 M550i Join Date: Mar 2014 Location: Everett, Wa iTrader: (0)	Yeah this will be the first maintenance I have had to do that will require unnecessary work imo, aside from the oil filter housing gasket having the dumbest design ever, of course.
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