chit chat thread
-
Any 335 experts on here? Looking for some troubleshooting help for power loss
I don't know about experts but a few of us are familiar with owning an n54/n55 so you could say we're familiar with fixing them since "kinda broken" or misfiring tend to be their favorite states of being.
Do what are the symptoms. Any codes?
Edit: there actually is one expert on here but he hasn't frequented the site recently.
-
No codes just running sluggish. I'm leaning towards spark plugs since I'm at the maintenance interval with 64000 miles.
That's a good place to start in that car. Have you had the carbon cleaned yet?
-
Carbon buildup isn't as common on N55 as it is on N54, but still something to check. Spark plugs/coils might help, but it seems weird to me that you aren't getting any codes.
Since you have MHD, can you share a log of a pull?
-
I havent done a carbon cleaning since the dealer told me with the n55 it's less of an issue and should be done around 100k. Plugs should be here in the next few days but I didnt order coils. If the plugs dont fix it that might have to be next. I cant do a log since I didnt purchase that part of MHD but starting to think I should.
-
I havent done a carbon cleaning since the dealer told me with the n55 it's less of an issue and should be done around 100k. Plugs should be here in the next few days but I didnt order coils. If the plugs dont fix it that might have to be next. I cant do a log since I didnt purchase that part of MHD but starting to think I should.
If you plan to continue modding/maintaining the car, logs are a good thing to get familiar with. Wouldn't hurt to purchase that module if that's the case.
-
So I was leaving working and started my car just for it to fall on its face and stall. Started it again and all was good besides the sluggish performance. 40 minutes later I was leaving the vendor I went to meet with and got a service engine soon light.
Since you recently messed with the charge pipe and TMAP sensor, I'd start there. Check all charge pipe connections, check to make sure it is connected to the throttle body properly with the C-clip.
-
Make sure the exhaust burble is turned off.
It has nothing to do with your issue, but just make sure its turned off.
Yea burble has been off since the first day I tried it.
-
-
-
Create an account on Datazap.me, upload it there and then post the link.
-
It's cool that it's a CSV file, because it makes it look like I'm actually doing work right now.
Not that familiar with these engines, but I can see you're not hitting your boost targets. Fuel rail pressure drops about 10% during the pull... not sure if that's normal. Timing is also really low if that's total timing and not a "correction factor" or trim value of some sort...
-
https://datazap.me/u/fnick123/e90-n55
I hope this works
-
Here is a better log that I did a full 3rd gear pull starting at ~3k to ~6.5k
https://datazap.me/u/fnick123/full-3rd-gear-pull?log=0&data=3-14
-
Here is a better log that I did a full 3rd gear pull starting at ~3k to ~6.5k
https://datazap.me/u/fnick123/full-3rd-gear-pull?log=0&data=3-14
The only thing that really stands out to me is that your boost is under target by about 2psi. It's targeting ~12psi and you're seeing ~10psi, I think stock boost is ~8psi.
Timing looks normal for 93 octane. You do have a few corrections on cylinder 3 & 4, but nothing to worry about. I'm sure the new plugs/coils will help this.
Have you checked your charge pipe area yet? A boost leak test wouldn't hurt.
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login