How To Fix Misfire Issue On N54 Custom Tune

Hey guys i have been having an issue with my 135i misfiring when under heavy load usually at wide open throttle.
The main reason is because i am now pushing alot more PSI into the engine which makes any weak points fail.
My injector bore probably will need to be fixed however this is a good way to get around that in the mean time.

[@AwesomeLife-h6p]

My boy coated his injectors with JB weld , tightened em all down, let dry a few days. Been fine for years. Can always be drilled later.

[@menjicar]

Sheesh. Not a bad idea. But not sure if I would recommend that. Especially since these injectors always fail

[@AwesomeLife-h6p]

The injector is very smooth steel. Comes right out with a slide hammer.

[@marqqone]

ngl ive bben thininkg about doing this ma try this teflen then do that iff not

[@AwesomeLife-h6p]

@marqqone if its not too bad black gasket maker works on the tips around the circular Teflon seals .

[@2EASY2PK]

@@marqqonedid u end up doing this I was gonna try it as well put two couplers and teflon tape

[@Minecraft_storytimee]

Hey man I’m havin a miss fire same as u I saw ur old video where u used to two coupling’s can I do the same thing or do the tape thing

[@lusher00]

How well does that pen cap work? If it works I might as well 3D print one instead of buying the tool. I have the infamous kit that took a year to ship after lots of nasty emails but I do have it. It’s been sitting on the shelf for months because I’m terrified to drill on my head.

[@17t135i]

Mine misfires if I go over 6800rpm in 4th gear, always shows combustion misfire cyl 6, did yours only do this at high rpm?

[@menjicar]

Both at high rpm or in a higher gear when really under load.

[@17t135i]

@menjicar right, slightly different to mine, I can drive mine really Hard in any rev range, but if I dare exceed 6900rpm it does the bmw bong and half check engine light, replaced my injector seals last year, I might replace no 6 injector and seal and see what happens

[@menjicar]

@@17t135i yeah if not. It’s 100% going to be the injector bore. I had to fix mine. Video coming soon

[@jerremys]

Hey did you ever figure it out?

[@coperee7518]

good stuff thanks, are you on E mix or 93/91 ? currently 20 psi 19t tune cant imagine the boost youre running

[@menjicar]

I’m on E60 With port injection.

[@e46m54nissansr20937]

@@menjicar I have a question my cylinder 3 injector was not fully sealed, I tried to tighten the injector bracket bold and stripped the bracket bolt in half, half of the bolt its still in the hole for the bracket, even when i put older injectors with a seal in it there is still play in the injector keep in mind the bracket is no longer on, does this mean my injector hole is ovalled?

[@cme2nite123]

Bro get fastape tape… just did mine yesterday & it works like a charm

[@menjicar]

Maybe next time 👀 mine has been holding on for a while now too

[@cme2nite123]

@@menjicar 💪🏾💪🏾💪🏾

[@e46m54nissansr20937]

I have a question my cylinder 3 injector was not fully sealed, I tried to tighten the injector bracket bold and stripped the bracket bolt in half, half of the bolt its still in the hole for the bracket, even when i put older injectors with a seal in it there is still play in the injector keep in mind the bracket is no longer on, does this mean my injector hole is ovalled?

[@ForzaPulls]

At that point just buy a new head for the car

[@isaiahfresh4924]

You are gonna have to drill it out find someone that can do it

[@Miguel-ut4jq]

Did it work? is it still ruining good? I’m having that issue with cylinder one I already swapped coils and Sparkplugs still nothing

[@menjicar]

It worked for a while but issue came back. Most likely due to me running at 27 PSI Boost. Because it was fine at around 22-24 psi. Had to drill and make new injector bore. Was oval out. Made separate video