[6ixSpd]

Edit: RESOLVED. Poor throttle body seal with the AFE intake caused unmetered air to enter and threw everything off. Fix this and reset everything, and the Lambda Probe became "ready" within two short drives


Hello gents,

I'm at my wits end here and extremely frustrated with my car not setting for an e-test. I have kittyless headers and a stock "330i" Bimmerlabs flash with a disabling of the catalyst CEL.

Background info:

• Drove for 600mi/1000 KMs, mostly highway driving (60%-70%)
• All OB2 monitors are ready except: Heated Catalyst (as expected) and Lambda Probe
• Strangely, Heated Lambda Probe is ready
• Fuel consumption has been trash for a while. It is 10.2 L/100KM (23 MPG) since the last reset which contained 80% highway driving.

Data:


Is there any other data I can monitor to find out why the hell the monitor isn't setting? I've already been ticketed for an expired e-test and I just want this stupid thing to work already, lol.

EDIT:
I've logged some data based on @rjahl's Custom Jobs (thanks for the contribution!) on Testo:

Lastly, aftermarket tune and full throttle.

• https://datazap.me/u/dbworld4k/norma...tb-boot-repair
  Stock "330i" flash and CEL disabling for the cats. Normal driving, data taken before I noticed the damaged/possibly leaking AFE throttle body rubber gasket.
• https://datazap.me/u/dbworld4k/wot-tb-boot-repair
  Stock "330i" flash and CEL disabling for the cats. Full throttle, data taken before I noticed the damaged/possibly leaking AFE throttle body rubber gasket.
• https://datazap.me/u/dbworld4k/norma...tb-boot-repair
  Stock "330i" flash and CEL disabling for the cats. New AFE throttle body rubber gasket.
• https://datazap.me/u/dbworld4k/wot-after-tb-boot-repair
  Same flash, but full throttle. New AFE throttle body rubber gasket.
• https://datazap.me/u/dbworld4k/milv-tune-wot
  Lastly, aftermarket tune and full throttle. New AFE throttle body rubber gasket.

[3002 tii]

When was last time u actually changed the o2 sensors?

[6ixSpd]

Originally Posted by 3002 tii

When was last time u actually changed the o2 sensors?

In my two years of ownership, I haven't changed the pre-cat O2. Except a post-cat O2 recently.

The voltage/resistance and the running values seem okay in INPA though. Is the data showing any indication of needing new O2s?

[6ixSpd]

If anyone can suggest what jobs to monitor in Testo so I can pull some useful data to resolve this, that would be greatly appreciated.

[desertman123]

Don't quote me on this, but I'm pretty sure I was told that for the Bimmerlabs 130i tune a lot of the emissions readiness data wasn't even accounted for, since a lot of the data was originally from a Euro tune.

Might be the same for the 330i tune.

[6ixSpd]

Okay so I did some pulls with the custom jobs in Testo that a member here graciously uploaded. Using those data parameters I have data logged a normal driving and WOT run in 2nd/3rd.

I also noticed the rubber boot to the throttle body on my AFE intake was not fully seated (must've happened after the damn dealership did the recall work on my car a few months ago). This may have been letting in some unmetered air, causing the engine to dump in more fuel and run rich - might explain the poor fuel economy despite both O2s looking okay in INPA (at least while stationary).



Luckily I had a new spare boot on hand and installed it. I went out and did some more logging after the repair, both normal driving and some WOT runs.

These CSV files are attached in zip archives below. If anyone with knowledge on how to analyze this stuff could take a look, that would be fantastic!

Originally Posted by desertman123

Don't quote me on this, but I'm pretty sure I was told that for the Bimmerlabs 130i tune a lot of the emissions readiness data wasn't even accounted for, since a lot of the data was originally from a Euro tune.

Might be the same for the 330i tune.

Interesting. If that's true then that could explain some issues.