[supersnake83]

Hello everyone,

I recently embarked on some major, but common repairs for the Wife's 2008 328XI coupe (E92). All parts used were new OEM from BMW.

The Valve cover gasket was leaking, so instead of replacing just the gasket, I replaced the whole valve cover (and the eccentric shaft sensor). The oil leak caused oil to get into cylinder #4, so the ignition coil had oil over the boot that makes contact with the spark plug. I figured this ruined the coil because it caused a misfire in cylinder #4 (confirmed by running code) and the Service engine soon light to come on. I originally ordered a single replacement coil, but the coil was different. The original coil in the car was a Bosch, and the new coils are Delphi.

With the change in coils, I then decided to buy 5 more so all 6 coils can be the new Delphi style in the car, not mixing Bosch with delphi (I didn't know if mixing was gonna cause a problem so I just ordered 6 new delphi coils).

I also ordered 6 new spark plugs since I wanted to replace the one spark plug with oil on it, but same story, the original plugs are bosch, the new plugs are NGK. I didn't want mix, so I went ahead and replaced all 6 plugs.

The Valve cover gasket, eccentric shaft gasket (and the oil filter housing gasket) repairs all went well and no problems from those repairs.

The problem I have now is with the plugs/coils. I'm now getting misfires in several cylinders with service engine soon light on again (after clearing the previous misfire and service engine soon codes from before). I have a foxwell NT510 and confirmed that I get misfires in multiple cylinders. I made sure I torqued the spark plugs to 30Nm and all coils are properly connected (in sequence and correctly fitting onto the spark plug).

Can anyone share some insight onto what the problem could be? I've read somewhere that I might need to perform an LVS reset. Is this true?

Also, the NT510 I have does not (or I can't find it) have the Reset LVS specifically, but under Service>Drive, I did find the reset adaptations. I did this and I think it reset multiple adaptations for the car as I immediately got an AWD, ABS and DSC error. The errors cleared after another minute, but incidentally, after scanning the car again, I got other codes. I'll post those codes in a little while, but can someone offer insight into the issue I have with the plugs/coils? I'm doubting I have bad plugs/coils because it's not just one misfire, it several (maybe all cylinders).

Thanks.

[2002]

Insert the key fob, set parking brake, place transmission in neutral, push the start button without your foot on any pedal. You will hear the eccentric motor cycle (click, click) to re calibrate the valve train. Do it once more to be sure. Try to start the engine normally.

[supersnake83]

Thanks. I gave this a shot, but it did not change anything.

I have an automatic, so I cannot put the car in N without starting, then turning off. I did try again (and previously did this several times) by just putting the key in the ignition turning the car to on (press start button without having foot on the brake) and I did here the two clicks. I found somewhere else that mentioned this is for the Valvetronic motor to re-initialize, not the Eccentric shaft sensor.

Also, I was able to get the list of codes that are present on the car now. The following codes are present:

DME codes:

29CD (cylinder 1 misfire), 29D2 (Cylinder 6 misfire), 29CC (several cyclinder misfires), and 2F9A (Ambient temperature signal).

I'm also getting the following codes:

ESG GM6 Transmission Control:

CF1C (no message from engine control)

ABS-DSC (bosch) dynamic stability control:

5F78 (DSC engine management interface)

INSTR Instrument clustomer:

A559 (Instrument cluster power supply has been switched off--closed circuiet current cutoff relay).


The engine misfires were coming up right after I cleared the codes the first time and restarted the car (after finishing all the work). The other codes I only remember coming up after I did the reset adaptations with the NT510 I have (using BMW 8.3 software). This was a DME menu item that reset all adaptations (not sure what all is--and yes, I did accidentally thinking I was being taken to another sub menu to list the adaptations to reset, but it performed the reset when I selected theoption)

Thanks.

[supersnake83]

By the way, the engine is a N51.

Thanks.

[supersnake83]

Hello everyone.

I had a misfire, meaning my brain had a misfire. Really...Yes, literally.

The problem was my error. I was so tired early this morning when finishing the repair after putting in 10 hours into the repair, plus working 9 hours at my day job yesterday.

All in all, the problem is now fixed. I actually had 3 misfires because I did not have 3 of the ignition coil harness connectors plugged in all the way. All other codes are also cleared. After I fixed the ignition coil connectors, the car started and sounded normal. I then reset the misfire codes, as well as reset all the other codes. I then drove around to make sure everything worked like usual and ran the scan tool again to find no more fault codes.

It looks like what the NT510 did was reset any adaptations that was able to be reset with whatever sensors or car conditioning BMW has setup on the car.

I don't know if the adaptations reset I did also included coil adaptation, but i'm happy with my repair (except for the fact that I scratched and cracked the bumper when I had to jack up the car inside my small garage to take the tires off to find a dropped bolt). The car's bumper was up against the garage door where there is an outward positioned hinge. Go figure.

I'm not that happy with the Foxwell tool because I've seen cheaper tools able to clear codes and I was previously comparing the Foxwell NT510 to the ECS Tuning Schwaben NT510. It seems like the Schwaben NT510 is superior to the Foxwell branded version based on other posts I've read, but before I made the purchase I reached out to both Foxwell and ECS Tuning to ask if they were the same. Foxwell said they were the exact same and ECS tuning said they were basically the same. I should have asked what the "basically" meant for the differences.

Anyway. Thanks everyone who read this and for your reply 2002.

[the dope steez]

Originally Posted by supersnake83

Hello everyone.

I had a misfire, meaning my brain had a misfire. Really...Yes, literally.

The problem was my error. I was so tired early this morning when finishing the repair after putting in 10 hours into the repair, plus working 9 hours at my day job yesterday.

All in all, the problem is now fixed. I actually had 3 misfires because I did not have 3 of the ignition coil harness connectors plugged in all the way. All other codes are also cleared. After I fixed the ignition coil connectors, the car started and sounded normal. I then reset the misfire codes, as well as reset all the other codes. I then drove around to make sure everything worked like usual and ran the scan tool again to find no more fault codes.

It looks like what the NT510 did was reset any adaptations that was able to be reset with whatever sensors or car conditioning BMW has setup on the car.

I don't know if the adaptations reset I did also included coil adaptation, but i'm happy with my repair (except for the fact that I scratched and cracked the bumper when I had to jack up the car inside my small garage to take the tires off to find a dropped bolt). The car's bumper was up against the garage door where there is an outward positioned hinge. Go figure.

I'm not that happy with the Foxwell tool because I've seen cheaper tools able to clear codes and I was previously comparing the Foxwell NT510 to the ECS Tuning Schwaben NT510. It seems like the Schwaben NT510 is superior to the Foxwell branded version based on other posts I've read, but before I made the purchase I reached out to both Foxwell and ECS Tuning to ask if they were the same. Foxwell said they were the exact same and ECS tuning said they were basically the same. I should have asked what the "basically" meant for the differences.

Anyway. Thanks everyone who read this and for your reply 2002.

As far as I know the Schwaben is no different than the Foxwell besides having a default icon for BMW/mini/rolls-royce.
The Foxwell should be able to clear codes.