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By the way just wanted to thank everyone so far for the help. Really do appreciate it

Nope downpipes were installed a while ago last year Don't trust myself to do stuff like drop the subframe to get access to the DP's for xi but i'll probably have them throw in the rear o2's next time i'm at the shop if at that time we still think that's it. When I get my USB cable today i'll go out and try to do some logs for you guys. One 3rd gear pull hopefully no misfires then i'll do my best to make the car misfire and log as it happens. Maybe i'll try that but i'd still have to pay a shop to do it and sounds like a pain... I'm going to post up logs later today that will hopefully help to better pinpoint where the problem is Yea I have two rear o2's and the only codes i've got is for the rears. But don't the rears just do emissions whereas the fronts are AFR? If so then why would one rear being out make the car misfire?

Saturday June 8th, 11am - 3pm. Location: Rhythm & Speed (1934 Cotner Ave, West Los Angeles, Ca 90025) Ladies and Gentlemen, after much anticipation we are proud to announce the launch event of our World's-First E46 M3 product. Gaphix Design Haus and MClub.La will be co-hosting an open house event at Rhythm & Speed Automotive Performance in West LA. Come enjoy food, music, exotics, and car talk with us at Rhythm & Speed, a European service and performance shop run by enthusiasts, for enthusiasts. Drop by to check out the shop, grab some food, as well as meet and share driving enthusiasm with MClub.La, a group of true Mthusiasts. You'll get a chance to see our new products, along with a peak at future M products. In keeping with their driving enthusiast nature, MClub.La will be hosting a rally to the event! Featuring *An exclusive launch of a world's first E46 M3 product by GDH *MClub.La Rally Drive to the Event *Shop Tour of Rhythm & Speed *Exotics *Music *Food MClub.La Rally Info: Meet Time: 10:15am Departure Time: 10:45am Rally Meeting Point: Home Depot (12975 West Jefferson Boulevard, Los Angeles, CA) Destination: Rhythm & Speed (Google Maps) A few reminders: *Please observe the rules of the road *No racing *Please be respectful of the meeting location *No Burnouts, donuts, or engine revving at the meet *Bring a friendly attitude! Spread the word, all auto enthusiasts are welcome, hope to see GermanBoost represent!

Hi Guys, good news: ************** ISSUE SOLVED ********************* We ended up pulling the rear axle speed sensors (ABS sensor) on both sides of the car. Instead of removing the sensor near the axle, it's much quicker to unscrew one screw holding the fire wall and then disconnect the wire there. Takes 10 minutes and completely eliminates the ABS brake system. I didn't even have to push the DTC button. I couldn't anyways, because i already had the standard "Flat Tyre check signal missing" failure (the dyno measures the torque on the axle, the wheel has to be removed). So if anyone wants to dyno their BMW on a hun dyno, make sure you pull the sensors. greetings, Jeroen

So HPF went under due to the ost of lawsuit...Sad

I am but I think he changed plans on the hardware. He had a horrible experience with his installer and had to replace his entire motor. Everything left a bad taste in his mouth which is understandable.

When is chucks car ready? are you working with him?

I prefer both. aka home grown. Dig it up, then roll it up ;)

Yes hopefully so! If not he should drop the car off with me for a few days. I'd be happy to push the crap out of the turbos for him. :)

TurboMike's car is at GIAC, sounds like among other setups they're going to tune an aggressive e85+meth map. we should see some nice numbers out of that

+1 to this

my map won't work for you. it's set up to work with cobb, and it's for my vargas turbos. (unless you're running the same setup?)

if any one is on the fence about the Vargas fuel pump/rail upgrade, don't be. from what BoostAddict said (I'm back at work) it was an easy swap and it definitely works ! VargasTurboTech thanks again for the help!

there are a bunch of pics pages back. but to sum it up, the pictures do nothing for it! when you see it in person... wow! single 4" SS exhaust with one vibrant flow thru resonator/muffler. and of course ... open dump from the wastegate.

Did this happen after Down Pipe install? I switched the front O2's once and had similar problems. Took me 15 mins to swap to the right configuration and back in business.

i went up to their shop last week!! :music-rockout: their labor price also isnt bad either, less than the dealer too. bavauto is also pretty close but ive never been up there...cant believe the biggest shops all happen to be close by and not in cali lol

it will be wide spread...there are cars that can dig that have enough trap speed behind them to roll race the best of them. But flip side there are cars that can roll but have no work into their suspension for a hole shot worth a damn. It will just be a measure of who had the most money

I think his reaction towards the situation is more than understandable, and actually courteous. When you pay X amount of money for something that is contracted you're supposed to receive just that. Regardless of whether this customer paid cash or not still doesn't change the fact that BMW has not fulfilled the agreement on their end. They are just trying to get out of doing it all over again. The 8 weeks for the interior is nonsense. I'd be willing to bet if someone from BMW went down to their interior supplier and said this needs to be done in two weeks it can be done (albeit at a price). Mistakes happen, but BMW needs to make this right for the customer. After all, they're already sitting on his money. In the grand scheme of things this won't even affect BMW. I think they have the financial resources to build another one.

Nothing is ever simple when dealing with thousands of cars! But if you are not over boosting down low, etc, then its probably fine. Normally guys who use e90post are the ones that don't know about software updates or how to set things properly. They should really be reading n54tech instead. :)

Duty cycle is not really an indication of "safety". It's just a relative measure of vacuum applied to the wastegate actuator. Once you start changing around wastegates, etc, then it's only useful for comparison to the same car at various boost / rpm levels. :) Anyway, log looks pretty solid! Hopefully someone can crack 500rw with these soon. 20psi, 12 degrees, on a dynojet, is the basic formula.

Actually, I think the WGDC table is the base table and DC Corrections is the 5% authority to correct from the base table. I'd be interested in seeing a log with Boost DC Correction logged though. Otherwise shoot me the map and I'll take a log this weekend.

Can't see it! when I click it says its blocked by my ISP.

Sensor swap was presuming you're just doing the work yourself. Not practical to pay a mechanic to do it. In that case maybe start by replacing the rear sensors with new ones since you've thrown faults on them.

If only there was a way/event to test both these theories out.. kind like an official grudgematch setup.. digs for everyone first, then roll-ons after.. see who beats who in both types..

Sorry for the dumb question, but is the WGDC After PID (%) on cobb the same as boost control DC on procede?

Well i'm no tuner - that's for sure.. but drivability hasn't seemed to change and I'm not overshooting boost or anything like that, the sound is just gone.

So, you added DC to the WGDC table down low, but won't that cause severe negative DC corrections where you added it? I thought the procede only has 5% "on the fly" authority for DC correction. I had that midrange rattle for so long, I just propped the WGs open more, at the expense of lag, for less rattle.

Valve stem seals usually manifest themselves after idling for extended periods and then accelerating away, or a hot start after being off for 3-10 minutes. Judging by the oil in the turbos its most likely them.