All COBB Tuning AccessPORT for 135i Discussion Here

[jeff2.0t]

N55 news?

[zeroalias]

Originally Posted by AutoEntourage 135i

Anyone in Arizona, California, or Nevada running the "Sport" map on ACN91 octane fuel? Any problems?
More power than ACN91, less power?

I ran the sport map on ACN91 for about 2 weeks with Linear Throttle. It ran great until 1 week ago I began to experience a rough/shuddering idle on a cold start. The engine would start, the needle would hit around 1200 RPM then idle to 1500 RPM and shake along with a nice plume of black smoke from the exhaust, hardly much power from the throttle. Then turned off and started again it ran okay. I checked the error codes and received cylinder misfires on multiple cylinders.

I downgraded the tune to the "Drive" map and it ran fine for a day, the next day I started and had the same issue, only this time turning the ignition off and starting didn't help. I then uninstalled Cobb and the problem persisted. I drove to the dealer with a shuddering car and found out they need to replace all 6 injectors. Not sure if the fuel/tune combo has anything to do with it or if it just pushed an inevitable issue over the edge (which is a fairly common problem on any untuned N54).

During the time I got to play with the Sport Map, it ran great without any issues. I'd be interested to know other's experience running ACN91+SPORT.

[sluflyer06]

Originally Posted by zeroalias

I ran the sport map on ACN91 for about 2 weeks with Linear Throttle. It ran great until 1 week ago I began to experience a rough/shuddering idle on a cold start. The engine would start, the needle would hit around 1200 RPM then idle to 1500 RPM and shake along with a nice plume of black smoke from the exhaust, hardly much power from the throttle. Then turned off and started again it ran okay. I checked the error codes and received cylinder misfires on multiple cylinders.

I downgraded the tune to the "Drive" map and it ran fine for a day, the next day I started and had the same issue, only this time turning the ignition off and starting didn't help. I then uninstalled Cobb and the problem persisted. I drove to the dealer with a shuddering car and found out they need to replace all 6 injectors. Not sure if the fuel/tune combo has anything to do with it or if it just pushed an inevitable issue over the edge (which is a fairly common problem on any untuned N54).

During the time I got to play with the Sport Map, it ran great without any issues. I'd be interested to know other's experience running ACN91+SPORT.

The chance of it being anything other than a coincidence is pretty slim. Is it still in for the repair?

[evilstib]

Originally Posted by COBB Tuning

New dyno with corrected map. Gains of 28% whp and 32%lb-ft tq.



-Gary

So ~same HP as Dinan stage 2, less torque but less than half the price and no warranty (N54).

Still interesting to me. Is this Stage 1? Is there a stage II for a 2009 135i? You might just pique my interest enough to swap my Dinan for this instead of JB4...

[Metalbeast]

cobb website has a dyno of stage 2

[evilstib]

Originally Posted by DJIntel

cobb website has a dyno of stage 2

I see stage I... Where's stage II?

[Metalbeast]

http://www.cobbtuning.com/products/?id=5832


under "Typical Performance Gains" Stage 2 is listed and you can download as a .pdf.

[evilstib]

Originally Posted by zeroalias

I ran the sport map on ACN91 for about 2 weeks with Linear Throttle. It ran great until 1 week ago I began to experience a rough/shuddering idle on a cold start. The engine would start, the needle would hit around 1200 RPM then idle to 1500 RPM and shake along with a nice plume of black smoke from the exhaust, hardly much power from the throttle. Then turned off and started again it ran okay. I checked the error codes and received cylinder misfires on multiple cylinders.

I downgraded the tune to the "Drive" map and it ran fine for a day, the next day I started and had the same issue, only this time turning the ignition off and starting didn't help. I then uninstalled Cobb and the problem persisted. I drove to the dealer with a shuddering car and found out they need to replace all 6 injectors. Not sure if the fuel/tune combo has anything to do with it or if it just pushed an inevitable issue over the edge (which is a fairly common problem on any untuned N54).

During the time I got to play with the Sport Map, it ran great without any issues. I'd be interested to know other's experience running ACN91+SPORT.

Like this?

I had dinan stage II on the car, BMW said it was a flash issue. They removed the dinan, reloaded the original BMW sOftware and put the dinan back on.

Problem solved.

[evilstib]

Originally Posted by DJIntel

http://www.cobbtuning.com/products/?id=5832


under "Typical Performance Gains" Stage 2 is listed and you can download as a .pdf.

Anyone else have issues reading that PDF on an iPhone or iPad? I saw it before, but all the text was just gradient squares of white, black and grey.

[bogart]

N55

[sluflyer06]

Originally Posted by evilstib

Anyone else have issues reading that PDF on an iPhone or iPad? I saw it before, but all the text was just gradient squares of white, black and grey.

Thats normal I dunno what they're doing when they make that PDF. It won't read correctly on my Xoom either. Just use a computer.

[f1rst 1]

Originally Posted by evilstib

Anyone else have issues reading that PDF on an iPhone or iPad? I saw it before, but all the text was just gradient squares of white, black and grey.

does the same on all my mac "computer" products too, macbook air, imac, macbook pro...annoying

[Metalbeast]

i uploaded here if you want to check out

http://www63.zippyshare.com/v/22521790/file.html

[evilstib]

Originally Posted by bogart

N55

N54!

[zeroalias]

Originally Posted by evilstib

Like this?

I had dinan stage II on the car, BMW said it was a flash issue. They removed the dinan, reloaded the original BMW sOftware and put the dinan back on.

Problem solved.

Yep, it was sort of like that, only my problem was not a flash issue. It was different, my car would shudder really bad and hitting the gas actually moved the car but I was getting cylinder misfire codes and greatly reduced power. I was rocking the old injectors and they all went out! Got them all replaced and now it's running better than when I bought it.

[evilstib]

Originally Posted by zeroalias

Yep, it was sort of like that, only my problem was not a flash issue. It was different, my car would shudder really bad and hitting the gas actually moved the car but I was getting cylinder misfire codes and greatly reduced power. I was rocking the old injectors and they all went out! Got them all replaced and now it's running better than when I bought it.

If I put it in drive, the car would lurch forward on the rpm increases and die in the decreases. Fun stuff!!

Anyhoo... Back on track....

[bogart]

Originally Posted by evilstib

N54!

N5... fine... N54...

[cwg]

Originally Posted by bogart

N55

+1

[cwg]

Originally Posted by collegemt

How long until the N55 accessport is released.

Are we looking at 3 months or more like 12 months?

This was posted back on January 5th - I guess the question now is - are we looking at 12 months or more like 24 months

[cwg]

Originally Posted by Danny@COBB

As soon as I get a more accurate ETA on things, I'll be able to let you all know. But we do have a 2011 135i in our hands and *some* testing was done yesterday inbetween tunes. Coming soon!!!!! *dun dun dun*

The above was the Janaury 5, 2011 reply from Cobb to the 3 or 12 months question.

Sure would like to get some straight answers - we have been waiting since Janaury and still not even an ETA?

[Groundpilot]

Yeah, i hear you. A simple answer to this question would be nice.

[christopherkriens]

It's only one number how hard can it be??!