[01bird]

I am FBO with cattless DP's and 200 cell mid cats. Main issue is my car is smoking when I come to a stop. Does not smell like oil or coolant. It is a huge cloud of light gray smoke. My oil has not gone down at all. The coolant is fine as well. I am running the JB4 G5 ISO Map 5 with BMS back end pump flash map. I only use 93 octane. My guess is I am running lean but just a guess. Sorry I typed so much but I have done everything I can thing of at this point. Just to note I did reset adaptation the day before I did this log and then logged on map 5 after only drivng maybe 25 miles.

http://www.datazap.me/u/randbrus510/...=1-3-4-9-14-18

Things I have done within the past 7k miles:
Intake valves were walnut blasted first
1. Changed Valve Cover Gasket
2. Changed Oil filter housing gasket
3. Changed Heat Exchanger and inline valve gaskets
4. Replaced both primary o2 sensors.
5. Upgraded PCV valve and cap
6. Changed all spark plugs and injectors with the newest model. Changed all coil packs but one since that coil pack was changed about 11k miles ago.

[Jeff@TopGearSolutions]

It doesn't appear you were Wide open throttle the entire time on this log, if not could you do another log, 3rd gear, wide open throttle from 2500 rpm to redline.

How many miles on the turbo's?

[Ingeniator]

Yeah your running lean. Not sure why but there has been a trend of lean running logs lately. I've also noticed most are running jb4 either stacked or standalone with newest firmware.

EDIT: Not sure how you reset adaptations but I've heard JB4 only resets STFT not LTFT. If you have a BT cable I think it can reset the LTFT.

[01bird]

Thanks for the responses. Yes, I will do a WOT and post that log for you. I have 58k miles on the car/turbos. My issue has been with the car smoking for sometime. My valve cover gasket and OFT gasket fixed the oil leak. The only time the car stopped smoking was when I changed out the primary o2 sensors. It stopped for about a month. I am not throwing any codes and have not gone into limp mode at all. I have a BT cable and reset the adaptations from there. I'm really at a loss on what to do. As you can see I replaced majority of the parts most people recommend.

[01bird]

What could be the reason I am running lean? I know the primary o2 sensors affect AFR and the secondary make sure that the primaries are working correctly if I am not mistaken. Could bad secondaries cause it to run lean and cause some smoking issues?

[Ingeniator]

PM replied