[rader1]

Originally Posted by Beachside Boostin

My new cobb just arrived. I am running bone stock and I am looking for the safest option and I'm not overall concerned about the latest and greatest (beta, etc.) b/c I drive a lot for my job and I'm doing what I can to stay away from the mod bug until I am out of warranty in a couple years. I'm in FL running 93 and after countless hours of thread reading I am thinking v301 is my best option? Stage 1 agressive, sport? I have no plans of FMIC at this point.

A lot of people had a problem with power osscilations on the 301 maps. Try V401 stage 1 sport and see how the car likes it. No codes no worries. IF you do have an issue then swap to v301.

Hope this helps.

[paapaa]

suddenly, without any WOT run. steady gas and like small hick ups,even using cruise control gives small hick ups.

now error code in ecu:
P29E1 (can scan tool give this)
Cobb AP gave xxxx number + "Micture Control 2"
what the hell is this?

[enrita]

Originally Posted by paapaa

suddenly, without any WOT run. steady gas and like small hick ups,even using cruise control gives small hick ups.

now error code in ecu:
P29E1 (can scan tool give this)
Cobb AP gave xxxx number + "Micture Control 2"
what the hell is this?

could be leaky injector or 02 sensor. search for the code. lots of threads

[paapaa]

Originally Posted by enrita

could be leaky injector or 02 sensor. search for the code. lots of threads

IF its leaky injector,does it mean it has to be replaced a.s.a.p or something worse happens?

[Beachside Boostin]

Originally Posted by rader1

A lot of people had a problem with power osscilations on the 301 maps. Try V401 stage 1 sport and see how the car likes it. No codes no worries. IF you do have an issue then swap to v301.

Hope this helps.

Thanks I'll give it a try today.

[Squintz82]

After running 4.0.1 Stage 1 Aggressive ST for about a week, I threw a P29CE code yesterday. I was driving home from work, and the car was still a bit cold. Gave it about 3/4 throttle in 2nd gear and it went into limp mode. Read the code with the AP and it said Cyl 2 misfire.

I pulled into a parking lot and re-flashed 4.0.0 Stage 1 Aggressive ST. Haven't had a problem since, but not sure what would cause it. Car is stock except for an AFE DCI, and has 14k miles. I ran 4.0.0 for about 5 weeks before flashing 4.0.1, and never had an issue.

Haven't had time to reflash and do a data log, but has anyone else thrown this code?

[RaihaX]

Originally Posted by Squintz82

After running 4.0.1 Aggressive ST for about a week, I threw a P29CE code yesterday. I was driving home from work, and the car was still a bit cold. Gave it about 3/4 throttle in 2nd gear and it went into limp mode. Read the code with the AP and it said Cyl 2 misfire.

I pulled into a parking lot and re-flashed 4.0.0 Aggressive ST. Haven't had a problem since, but not sure what would cause it. Car is stock except for an AFE DCI, and has 14k miles. I ran 4.0.0 for about 5 weeks before flashing 4.0.1, and never had an issue.

Haven't had time to reflash and do a data log, but has anyone else thrown this code?

Read the misfire thread.

[Squintz82]

Originally Posted by RaihaX

Read the misfire thread.

I'm reading it now. Should my coils / plugs be a concern at only 14k miles? Thought it might have something to do with 4.0.1 since it only happened once. Anything specific I should log to confirm?

[E90SoFlo]

Originally Posted by Squintz82

I'm reading it now. Should my coils / plugs be a concern at only 14k miles? Thought it might have something to do with 4.0.1 since it only happened once. Anything specific I should log to confirm?

Brand new stock plugs can be gapped incorrectly and cause misfire's

[blakonblak]

I am using v4.01 i am experiencing hella soot and some bad smells when driving... almost like molten plastic. no error codes, but I did have cylinder 2 misfire at one point. v4.00 made hella soot on my exhaust too. More on the driver side too.

Also there has been some hiccups around 2500 rpm when cruising and in traffic.

Any experiencing the same?

I flashed to v3.01 and had no soot or smells, but I had the hiccups.

[bmwm3redblack]

Originally Posted by blakonblak

I am using v4.01 i am experiencing hella soot and some bad smells when driving... almost like molten plastic. no error codes, but I did have cylinder 2 misfire at one point. v4.00 made hella soot on my exhaust too. More on the driver side too.

Also there has been some hiccups around 2500 rpm when cruising and in traffic.

Any experiencing the same?

I flashed to v3.01 and had no soot or smells, but I had the hiccups.

I experiencing similar smell using v301,people told it's smth with the tranny or clutch,but i swear i am not abusing it that much!!!

[rader1]

Sorry guys, but it'll be a couple weeks before I have any ATP numbers to share
The shops version of ATP was corrupted and was unable to flash the DME. They will be in touch with Cobb ASAP to get the problem fixed and once that's done I'll be back to shop. As of right now there's a tentative date for May 7th.

However, that is not a strike against the shop. The shop is honestly one of the best I've ever dealt with and their work is fantastic. Here's a couple pics of the install. The fact that a 4 gallon fuel cell fit in the back of a 1 series and still leaves the trunk fully useable is testament to their work. The flow meter looks damn near 100% stock.

[crypticc]

I went for a test drive today. mix of 50 mph cruise, 80 mph cruise, hard driving really caning it, and city driving about 20/20/20/20 mins of each, average mpg read at end of each 38, 35, 30, 30 mpg each. So I presume right hard driving must have gone to low twenties or below, but 30 mpg mixed cycle driving very achievable.
I have no concerns over mpg any more, I must have been just driving harder and less smoothly than normal to get 23 mpg average the other week.
All good now.
Chris

[paapaa]

Originally Posted by enrita

could be leaky injector or 02 sensor. search for the code. lots of threads

error codes:

P2C31 Lambda probe before catalyst,triming control
P2C6A lambda probe after catalytic reserved
P29E1 mixture control 2
P2A2C mixture control 2,lambda


the 2C31 is said on BMS downpipe fix guide "too strong settings" "challenge to get them clear"

its like using bad plugs and small,tiny hick ups...well...can the wrong position on 02 fix really do that car doesnt run properly?

any advice to solve this? minus-battery connection in trunk away,O2 fix to not so strong point,battery connection back to position,ecu learning clear using Cobb AP and driving cycles?

[enrita]

Originally Posted by paapaa

error codes:

P2C31 Lambda probe before catalyst,triming control
P2C6A lambda probe after catalytic reserved
P29E1 mixture control 2
P2A2C mixture control 2,lambda


the 2C31 is said on BMW downpipe fix guide "too strong settings" "challenge to get them clear"

its like using bad plugs and small,tiny hick ups...well...can the wrong position on 02 fix really do that car doesnt run properly?

any advice to solve this? minus-battery connection in trunk away,O2 fix to not so strong point,battery connection back to position,ecu learning clear using Cobb AP and driving cycles?

Do you have a downpipe fix installed in the ECU?

[paapaa]

Originally Posted by enrita

Do you have a downpipe fix installed in the ECU?

Yes, worked fine until this moment.its the BMS downpipe fix

[enrita]

Originally Posted by paapaa

Yes, worked fine until this moment.its the BMS downpipe fix

well remove it.... you dont need it with cobb. thats probably the cause of your issues.

[paapaa]

Originally Posted by enrita

well remove it.... you dont need it with cobb. thats probably the cause of your issues.

yes, but then OBD doesnt get "ready status" and car fails OBD inspection :/
god damn inspections...will have to ckeck again if they really do the OBD test or just the probe into back pipes.

(ps.so if i understood correctly:with BMS O2 fix settings too high, it gives power loss and codes like now it does...but without O2 fix Cobb AP should take care of the situation and shouldnt be any
error codes OR power loss with cattless dp´s?)

[Pseudo Nim]

Originally Posted by paapaa

yes, but then OBD doesnt get "ready status" and car fails OBD inspection :/
god damn inspections...will have to ckeck again if they really do the OBD test or just the probe into back pipes.

(ps.so if i understood correctly:with BMS O2 fix settings too high, it gives power loss and codes like now it does...but without O2 fix Cobb AP should take care of the situation and shouldnt be any
error codes OR power loss with cattless dp´s?)

With the Cobb, it just turns off the CEL and ignores the thrown codes, that's all. No modifications of emissions and so on so yes, no chance of passing readiness.

As far as I know, there was never a power loss with catless DPs in the first place - it has always been just a CEL.

[enrita]

Originally Posted by paapaa

yes, but then OBD doesnt get "ready status" and car fails OBD inspection :/
god damn inspections...will have to ckeck again if they really do the OBD test or just the probe into back pipes.

(ps.so if i understood correctly:with BMS O2 fix settings too high, it gives power loss and codes like now it does...but without O2 fix Cobb AP should take care of the situation and shouldnt be any
error codes OR power loss with cattless dp´s?)

i dont know in finland but in sweden they just check for codes and do sniffer.
just remove it. You should open a separate thread since your issue is probably caused by the BMS fix and not cobb.

[paapaa]

thanks for infos

[dfv2]

Cobb,

Do you plan to release ATR by June 2012? Will it be a free beta release?

Sincerely Yours,

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