[Renner335i]

I just bought a cobb v2. Installs a stage 2 map and I'm fbo in with vargas stage 2. I have jb4 and left to map 0. Weird thing is whenever I try to log as soon as I hit the gas it tells me to check cable but at idle it doesn't say that. Car had no boost. Uninstalled and map 1 jb4 runs great. Really want to use the cobb for protune but not sure why it won't let me log. Any ideas?

[RSL]

JB4 ISO is not completely pass through even on Map 0. Either log with JB4 or disconnect it to log with AP. Not sure why no boost, might try switching to DME boost control for the time being if you keep the JB4 in. I ran both when I first got my AP, took the JB4 out 2 days later and haven't looked back. You'll definitely want a custom tune with the AP.

[Royal-motorsport]

Hi guys just got my used v3 downloaded the manager, updated the AP but theres maps in it already wich seems to be normal from what i've read in the quick start guide.Do you guys recommend downloading new ones that would match the ecu / rom number or they are basically the same? i just want to run stg1 sport.

Thank you

[Renner335i]

Originally Posted by RSL

JB4 ISO is not completely pass through even on Map 0. Either log with JB4 or disconnect it to log with AP. Not sure why no boost, might try switching to DME boost control for the time being if you keep the JB4 in. I ran both when I first got my AP, took the JB4 out 2 days later and haven't looked back. You'll definitely want a custom tune with the AP.

Thank you sir. Removed jb4 and installed stage 2+ sport for right now. Has some wastegate rattle but can be tuned out from what I here. Just wanted to say thanks for the advice. Car is much smoother as well. I'll be sticking with cobb.

[kctim]

Originally Posted by Renner335i

Thank you sir. Removed jb4 and installed stage 2+ sport for right now. Has some wastegate rattle but can be tuned out from what I here. Just wanted to say thanks for the advice. Car is much smoother as well. I'll be sticking with cobb.

You think that's smooth, try a protune Best $200 you'll ever spend and even smoother! 90% of this community will never stray from the jb and have no idea what their missing...

[Jnat]

ATR is an amazing tool, in no way do I minimize pro tuning but it's possible with a lot of research, data logs and ATR to create your own, very efficient powerful maps.

[bplant13]

Originally Posted by bm6w

Quick question about Stage 2 Aggressive + FMIC....

I am FBO and recently went from Stage 2 sport, to stage 2 aggressive + FMIC. Holy F the car is insane. I have yet to floor it but today I hit 19.9 psi.

What PSI are you guys hitting with this tune? I'm afraid to floor it...... My car has 87k on the clock and 45k on the turbos. I daily the car and don't want to break anything. Am I pushing it with putting this much stress on the turbos?

Upload your logs. Are you seeing 19.9psi as you're accelerating throughout the midrange, or do you see that number as the max psi once you've slowed down, after an acceleration? When you shift gears, or let off the throttle, the boost will spike as the throttle plate closes (which is why you have diverted valves or blow off valves on turbo charged cars). It is normal to see a few extra psi during this time.

At sea level, you should be running around 18-19psi on Stage 2+ Aggresive. If your elevation is higher, or the air is warmer, and not as dense, it will require a little more boost to reach the requested target load. Our cars do not target a specific boost level, it all depends on the density of the air (temp and elevation).

One more thing to note, is that in sports mode, you will be requesting 100% of the torque (full throttle) once the pedal hits about 50%, so the last half of pedal travel is useless. Move to the linear throttle map to see the difference, or download ATR and create your own like I did, creating something in between the stock and linear throttle feel.

[bplant13]

Originally Posted by Royal-motorsport

Hi guys just got my used v3 downloaded the manager, updated the AP but theres maps in it already wich seems to be normal from what i've read in the quick start guide.Do you guys recommend downloading new ones that would match the ecu / rom number or they are basically the same? i just want to run stg1 sport.

Thank you

Look at the version of the particular map on ypu AP, and make sure it's the most current one on Cobb's website. The manager will update from time to time, but it doesn't mean there was an update to all the maps. I don't think the stage 1 maps have changed in several years.

[bplant13]

Originally Posted by FL335

The DPs don't give much Hp..the big deal is the upgraded FMIC. The jump in power using the FMIC+ map is significant. THEN get a pro tune...it's night and day. 400whp with just these mods and a good pro tune.

There's still a decent bump. I did my DPs last, but got about 25whp at the top end, got quicker throttle response and much faster turbo spool. Plus it sounds deadly! Lol

I agree that the FMIC is the weakest link in the chain. If it's 80 degrees outside, the stock IC is so inefficient that the DME will be pulling timing like crazy, actually robbing you of HP, regardless of what boost you run.

[ImGone92]

Sorry, probably been discussed already but I just got ptf tune and now keep getting code for fuel pump plausibility, why would this be? I'm currently fbo

[deepocean]

fuel pump possibility code have nothing to do with it it will retuning it self u can just ignore it

[FL335]

Originally Posted by deepocean

fuel pump possibility code have nothing to do with it it will retuning it self u can just ignore it

This. reset the edu and have at it. The code should disappear.

[ImGone92]

I keep doing that, but when I go full throttle I get half engine light and car drives weird. Fuel pump already changed at bmw. Any feed back would be greatly appreciated.

[jayzF30]

Why not email PTF? It could be anything from boost leaks to coils plugs to needing a touchup in the map. That code 2AAF is benign though and safe to ignore. That won't cause a check engine light or your car to drive weird.

[FL335]

Flash back to a Cobb tune and run it hard. If you get no codes, its the tune that causing the code and it needs to be revised.

[Welterweight]

Anyone flash a map and have the car act like its being choked?!!! No boost available! This has happened a few times on different maps over the past 6 months.

[bplant13]

Originally Posted by ImGone92

I keep doing that, but when I go full throttle I get half engine light and car drives weird. Fuel pump already changed at bmw. Any feed back would be greatly appreciated.

What other codes are you getting? The fuel pump plausibility code will not trigger the half engine light. I've had the fuel pump code since I originally got my Cobb and went stage 1, now it's 3 years later and I am FBO and have a pro tune. Code has been there all the time, and I've had no issues.

Who did your pro tune? The answer should be Jake from PTF/Motiv, and no one else. Try going back to a Cobb map and see if the car still has problems and other codes, but we can't help you unless we get more info.

[bplant13]

Originally Posted by Welterweight

Anyone flash a map and have the car act like its being choked?!!! No boost available! This has happened a few times on different maps over the past 6 months.

What map? What mods? What error codes? It could be one of a thousand things, but we can't help you unless you provide some information....

[Welterweight]

No codes three or four different maps. FBO. Happens occasionally. Hoping its a Cobb norm.

[bplant13]

Originally Posted by Welterweight

No codes three or four different maps. FBO. Happens occasionally. Hoping its a Cobb norm.

No, that is not normal. Strange that you're not getting any codes, or CEL. Best bet is to try and capture logs when it's happening, and post them up here, or send them to Cobb's support group. The logs will show why and what's happening.

[iceman175]

http://datazap.me/u/iceman175/stage-...=0&data=3-4-17

Those are 2 data logs I did this morning. I have been running stage 1 st sport for about a year and decided to try out stage 1 st aggressive. any input on how they look or what can be improved would be appreciated. thank you

it was 45 degrees outside, stage 1 st aggressive map, 93 oct gas. did a 3rd gear pull 08 335xi sedan mt with 105,000 miles, all stock with drop in cobb filter.

[BQTuning]

Originally Posted by ImGone92

Sorry, probably been discussed already but I just got ptf tune and now keep getting code for fuel pump plausibility, why would this be? I'm currently fbo

You need to get this resolved with your tuner, as they would know best how to resolve your issue unless its strictly hardware related

If they can't resolve the issue, and its not hardware related, then let me know, BuraQ@mybmw335is.com but first give them a chance to correct the problem, sometimes one fix may not do it, and it may take multiple fixes