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      08-14-2018, 09:35 PM   #23
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Originally Posted by Occ224 View Post
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Originally Posted by mweisdorfer View Post
Typically speaking, you must buy the coupler by itself. I wouldn't just buy 1 injector. I mean if you have to from a financial standpoint I get it. However, the 1 injector you have a problem with is a tell tale sign of things to come regarding the other 5.

Tunes are very hard on turbos, injectors, plugs & coils.
Hey man so i replaced injector and put the flow rate in and it ran amazing for a good 20 miles then I got on the gas and it started missfireing in cylinder 6 again the problem went away a few miles of driving it calm but I'm sure it would come back again. Please help haha
Remind me, you have : new coils & new plugs ?
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      08-15-2018, 06:25 AM   #24
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Remind me, you have : new coils & new plugs ?
Yes I put a new plug in but I put the old ignition coil back on because replacing it with the new one didnt fix anything
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      08-15-2018, 06:54 AM   #25
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Originally Posted by Occ224 View Post
Yes I put a new plug in but I put the old ignition coil back on because replacing it with the new one didnt fix anything
Did you replace all of the injectors? Or just cylinder 6?
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      08-15-2018, 06:58 AM   #26
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Originally Posted by mweisdorfer View Post
If you can work with programs like ista d & p, that's the way to go, but not everyone is tech savvy.

I'm an Mac user. That sort of works against me as ista is a windows program. I'm not really familiar with windows based programs. I have ista, but I haven't really played with it too much. I haven't had a need knock on wood....

I typically recommend a scanner like Foxwell/ Schwaben for most folks.
Is this the code reader you have? It can code/register the injectors and clearly it can read codes from the DME...does it read the codes from the other modules? I haven't needed that yet but I've seen it referred to in other threads...

I think of myself as pretty mechanically inclined from a DIY perspective...but not particularly tech savvy. In fact the tech aspects of these cars are what worry me the most...
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      08-15-2018, 07:06 AM   #27
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Have you checked compression? Excuse me for making assumptions, but it appears budget may be a factor. You can rent guage/test kit from AutoZone. The way it works is you buy it(not very expensive) through their loaner program, and they refund you in full when you bring it back.
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      08-15-2018, 07:23 AM   #28
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Quote:
Originally Posted by Bimmer_Engineer View Post
Quote:
Originally Posted by mweisdorfer View Post
If you can work with programs like ista d & p, that's the way to go, but not everyone is tech savvy.

I'm an Mac user. That sort of works against me as ista is a windows program. I'm not really familiar with windows based programs. I have ista, but I haven't really played with it too much. I haven't had a need knock on wood....

I typically recommend a scanner like Foxwell/ Schwaben for most folks.
Is this the code reader you have? It can code/register the injectors and clearly it can read codes from the DME...does it read the codes from the other modules? I haven't needed that yet but I've seen it referred to in other threads...

I think of myself as pretty mechanically inclined from a DIY perspective...but not particularly tech savvy. In fact the tech aspects of these cars are what worry me the most...
This is the one I have :

https://www.ecstuning.com/b-schwaben...020sch01a~scf/
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      08-15-2018, 07:30 AM   #29
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Originally Posted by Emilime75 View Post
Have you checked compression? Excuse me for making assumptions, but it appears budget may be a factor. You can rent guage/test kit from AutoZone. The way it works is you buy it(not very expensive) through their loaner program, and they refund you in full when you bring it back.
I have not checked compression but my fuel pressure will drop underload from around 80 to 52. It idles at 72. But when i give it gas it goes up but when i give it a lot of gas it will jump down for a split second and missfires but usually stays around 80. Could that still be compression?
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      08-15-2018, 07:31 AM   #30
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Originally Posted by Bimmer_Engineer View Post
Did you replace all of the injectors? Or just cylinder 6?
I only replaced 6 thinking thats the only code i have it should fix that cylinder
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      08-15-2018, 07:34 AM   #31
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Originally Posted by Occ224 View Post
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Originally Posted by mweisdorfer View Post
Remind me, you have : new coils & new plugs ?
Yes I put a new plug in but I put the old ignition coil back on because replacing it with the new one didnt fix anything
I'd put the new coil back on. Did you put a new injector in? What's the index number for cylinders 4 & 5 (bank 2) ? Sometimes the DME can be finicky and demand that all the injectors in a bank be 1-10 or 11 & 12. So, if you had say index 8 in cylinders 4 & 5 and then put in an index 12 in 6, the DME would not like that.
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      08-15-2018, 08:38 AM   #32
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Quote:
Originally Posted by mweisdorfer View Post
I'd put the new coil back on. Did you put a new injector in? What's the index number for cylinders 4 & 5 (bank 2) ? Sometimes the DME can be finicky and demand that all the injectors in a bank be 1-10 or 11 & 12. So, if you had say index 8 in cylinders 4 & 5 and then put in an index 12 in 6, the DME would not like that.
Ill have to check when i get home I will get back to you around 4 central daylight time. Thank you for the help

Last edited by Occ224; 08-15-2018 at 03:24 PM..
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      08-15-2018, 05:54 PM   #33
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Quote:
Originally Posted by mweisdorfer View Post
I'd put the new coil back on. Did you put a new injector in? What's the index number for cylinders 4 & 5 (bank 2) ? Sometimes the DME can be finicky and demand that all the injectors in a bank be 1-10 or 11 & 12. So, if you had say index 8 in cylinders 4 & 5 and then put in an index 12 in 6, the DME would not like that.
Sorry for the late reply. Injector 1 is index 5 2 is 9, 3 is 9, 4 is 5, 5 is 9. And 6 was 9 but now the index and bmw sign on the new injector is marked out.
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      08-15-2018, 06:00 PM   #34
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Quote:
Originally Posted by Occ224 View Post
Quote:
Originally Posted by mweisdorfer View Post
I'd put the new coil back on. Did you put a new injector in? What's the index number for cylinders 4 & 5 (bank 2) ? Sometimes the DME can be finicky and demand that all the injectors in a bank be 1-10 or 11 & 12. So, if you had say index 8 in cylinders 4 & 5 and then put in an index 12 in 6, the DME would not like that.
Sorry for the late reply. Injector 1 is index 5 2 is 9, 3 is 9, 4 is 5, 5 is 9. And 6 was 9 but now the index and bmw sign on the new injector is marked out.
You have a VDO index 12 in cylinder 6 now.

You coded the new injector to DME correct?

If so, either source an index 5-9 on eBay,

OR

get two more index 12 and make bank 2 all index 12. Most likely the index 5-9 on eBay will be refurbished and only last about 25-40,000 miles at best.
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      08-15-2018, 06:22 PM   #35
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Quote:
Originally Posted by mweisdorfer View Post
You have a VDO index 12 in cylinder 6 now.

You coded the new injector to DME correct?

If so, either source an index 5-9 on eBay,

OR

get two more index 12 and make bank 2 all index 12. Most likely the index 5-9 on eBay will be refurbished and only last about 25-40,000 miles at best.
It was still misfireing the exact same way even with an index 9 in it.
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      08-15-2018, 06:23 PM   #36
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Quote:
Originally Posted by mweisdorfer View Post
You have a VDO index 12 in cylinder 6 now.

You coded the new injector to DME correct?

If so, either source an index 5-9 on eBay,

OR

get two more index 12 and make bank 2 all index 12. Most likely the index 5-9 on eBay will be refurbished and only last about 25-40,000 miles at best.
Do you think I should run some cleaner through it? Could only one cylinder be dirty?
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      08-15-2018, 08:12 PM   #37
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Quote:
Originally Posted by Occ224 View Post
Quote:
Originally Posted by mweisdorfer View Post
You have a VDO index 12 in cylinder 6 now.

You coded the new injector to DME correct?

If so, either source an index 5-9 on eBay,

OR

get two more index 12 and make bank 2 all index 12. Most likely the index 5-9 on eBay will be refurbished and only last about 25-40,000 miles at best.
Do you think I should run some cleaner through it? Could only one cylinder be dirty?
I think the index 9 that came out of cylinder 6 is bad. I think that when you put the index 12 into cylinder 6, the DME didn't like that. From what I have read, you should not mix index 11 or 12 with index 1-10, in a given bank. Right now, you have index 12, 5 & 9 in bank 2. So, that's why you are getting the misfire from the brand new injector. Make sense?

Something tells me that the previous owner had changed out two other cylinders. Or the previous owner bought a rebuilt injector kit on eBay and installed them. That concerns me.

Like said, get two more index 12 injectors and put them in cylinders 4 & 5, or find an index 1-10 injector on eBay & install it in cylinder 6. Long term, you are ahead by buying two index 12 injectors and putting them in cylinders 4 & 5.
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      08-15-2018, 08:21 PM   #38
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Quote:
Originally Posted by Occ224 View Post
Quote:
Originally Posted by mweisdorfer View Post
You have a VDO index 12 in cylinder 6 now.

You coded the new injector to DME correct?

If so, either source an index 5-9 on eBay,

OR

get two more index 12 and make bank 2 all index 12. Most likely the index 5-9 on eBay will be refurbished and only last about 25-40,000 miles at best.
It was still misfireing the exact same way even with an index 9 in it.
Here's a set of refurbished index 9's.

https://m.ebay.com/itm/6-OEM-Fuel-In....c100935.m2460
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      08-15-2018, 09:45 PM   #39
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Quote:
Originally Posted by mweisdorfer View Post
Here's a set of refurbished index 9's.

https://m.ebay.com/itm/6-OEM-Fuel-In....c100935.m2460
Alright man I'm gunna buy those. Hopefully thats the problem. Could you think of anything else it could be? Fuel pump? fuel filter? needs a clean? I just think its weird how it took about 20 miles of driving slightly hard to start misfireing instead of showing signs as soon as I started it.
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      08-15-2018, 09:52 PM   #40
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Quote:
Originally Posted by Occ224 View Post
Quote:
Originally Posted by mweisdorfer View Post
Here's a set of refurbished index 9's.

https://m.ebay.com/itm/6-OEM-Fuel-In....c100935.m2460
Alright man I'm gunna buy those. Hopefully thats the problem. Could you think of anything else it could be? Fuel pump? fuel filter? needs a clean? I just think its weird how it took about 20 miles of driving slightly hard to start misfireing instead of showing signs as soon as I started it.
You coded the new index 12 injector to the DME right? Because if you didn't, that would be a reason why your are still getting misfires.

Misfires 9/10 are

1) bad plugs
2) bad coils
3) bad injectors

If you buy the index 9 injectors from eBay, expect them to last maybe 25,000 miles or so. 40k at best.

You'll need couplers

Hopefully, they will have new seals on them. I would think they would.
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      08-16-2018, 07:03 AM   #41
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Quote:
Originally Posted by mweisdorfer View Post
You coded the new index 12 injector to the DME right? Because if you didn't, that would be a reason why your are still getting misfires.

Misfires 9/10 are

1) bad plugs
2) bad coils
3) bad injectors

If you buy the index 9 injectors from eBay, expect them to last maybe 25,000 miles or so. 40k at best.

You'll need couplers

Hopefully, they will have new seals on them. I would think they would.
yes i did code the injector using inpa. 57.3 and 2.16 for fuel injector fuel injector #6. I swapped coils last night to double check it wasnt the coil and it is still missfireing. So defiantly not the coil. I have a new plug in so its not that. All im left with is possible fuel injector, vacuum leak, which wouldn't that be in multiple cylinders? Faulty fuel pump, maybe my lpfp because it goes up and down when accelerating but would that be multiple cylinders? I have a log here too give me a minute to find it. Can i replace cylinder 6 injector with old index 9 to return the injector i just bought?
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      08-16-2018, 07:32 AM   #42
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Quote:
Originally Posted by Occ224 View Post
Quote:
Originally Posted by mweisdorfer View Post
You coded the new index 12 injector to the DME right? Because if you didn't, that would be a reason why your are still getting misfires.

Misfires 9/10 are

1) bad plugs
2) bad coils
3) bad injectors

If you buy the index 9 injectors from eBay, expect them to last maybe 25,000 miles or so. 40k at best.

You'll need couplers

Hopefully, they will have new seals on them. I would think they would.
yes i did code the injector using inpa. 57.3 and 2.16 for fuel injector fuel injector #6. I swapped coils last night to double check it wasnt the coil and it is still missfireing. So defiantly not the coil. I have a new plug in so its not that. All im left with is possible fuel injector, vacuum leak, which wouldn't that be in multiple cylinders? Faulty fuel pump, maybe my lpfp because it goes up and down when accelerating but would that be multiple cylinders? I have a log here too give me a minute to find it. Can i replace cylinder 6 injector with old index 9 to return the injector i just bought?
The old injector won't seal correctly since it's been out of the cylinder too long. You probably can't return it, but you could sell it. Vacuum leaks may cause a code. Fuel pumps will definitely cause a code.
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      08-16-2018, 11:45 AM   #43
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Quote:
Originally Posted by mweisdorfer View Post
The old injector won't seal correctly since it's been out of the cylinder too long. You probably can't return it, but you could sell it. Vacuum leaks may cause a code. Fuel pumps will definitely cause a code.
Here is the log green is rpm, grey is acceleration pedal position, pink is low fuel pressure sensor and black is rail pressure
content://media/external/file/68916
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      08-16-2018, 11:58 AM   #44
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The fact it does on stage 1 but not stock would usually mean not injector first guess would been coil you tried that so second guess would be walnut blast especially since it cyl 6
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