[ajsalida]

Originally Posted by RaihaX

+1 no issues with v401.

I went back to v400 after several weeks with v401. v400 throttle mapping seems a bit more aggressive than v401. No issues with either but I like the feel of 400 more. This was v401 stage 1+ sport ST vs same version of v400.

I ran v400 1+ aggressive ST for a while, then went to v401 sport (91 octane gas issues + warmer weather). Felt very sluggish comparatively. Then left it there for a few weeks. Then tried v400 sport yesterday and it felt much stronger, almost as good as v400 aggressive.

[TonyDangH]

I went from Stage 1 V401 to Stage 1+ V401 with the install of exhaust and intercooler.

I gain a lot of midrange power but lost high end power. Very noticable lose on high rpm.

[RaihaX]

Originally Posted by ajsalida

I went back to v400 after several weeks with v401. v400 throttle mapping seems a bit more aggressive than v401. No issues with either but I like the feel of 400 more. This was v401 stage 1+ sport ST vs same version of v400.

I ran v400 1+ aggressive ST for a while, then went to v401 sport (91 octane gas issues + warmer weather). Felt very sluggish comparatively. Then left it there for a few weeks. Then tried v400 sport yesterday and it felt much stronger, almost as good as v400 aggressive.

Had different result for me

Stage 2+ Aggressive v401 ST feels better then V400 - they could be the same and is a placebo effect but I am happy either way

[jetbill]

I've got these codes
P2AAF - fuel pump plausibilty

P2DED - Power management: quiescent current violation

I think the first is pretty common but not sure about P2DED.

St 1 aggressive, v4.01

Edit; I think i left the AP plugged in while the car was off.

[marv85]

Originally Posted by RaihaX

Had different result for me

Stage 2+ Aggressive v401 ST feels better then V400 - they could be the same and is a placebo effect but I am happy either way

Actually even though logs (and feel) showed nothing wrong with the V401 maps, I was throwing tons of codes. H29f4,f5, 2adb, and more... So I just went back to 4.00 since they were working great. No codes with 4.00

I should probably let COBB about this...

[ajsalida]

Originally Posted by RaihaX

Had different result for me

Stage 2+ Aggressive v401 ST feels better then V400 - they could be the same and is a placebo effect but I am happy either way

Yeah I'm sure you are right on stage 2+. I think the really new area for maps were the stage 1+ FMIC. And there were many people with issues on them, v400. So (wild guess here) I think Cobb dialed back on the top end on 401 beta, and made the throttle milder, until they could iron out the issues and really make it perform.

I base this assertion on the fact that Dr Dirt had Cobb dyno his car with 301 and 401 stage 1+. While it made a ton more power low rpms, at mid-high rpm 301 walked all over it. Which makes zero sense. I thought about this for a while and the only thing I could come up with was they put in a fix in beta 401 versions until they could debug the customer issues (only with certain ECU's and under certain conditions).

Hoping Cobb chimes in here at some point, there is no other explanation for why a map for aftermarket intercooler can make seriously more TQ down low and then much less up high than a map for stock IC.

ANYWAY this is part of why I went back to try v400 again.

[RnmEvo9]

I've been pretty happy with v301 Stage 2+ so I haven't switched yet although its tempting...

[marv85]

Originally Posted by marv85

Actually even though logs (and feel) showed nothing wrong with the V401 maps, I was throwing tons of codes. H29f4,f5, 2adb, and more... So I just went back to 4.00 since they were working great. No codes with 4.00

I should probably let COBB about this...

Forgot to mention that I was getting some timing drops with 4.01 while had none at all with 4.00... same conditions

[marv85]

Originally Posted by RnmEvo9

I've been pretty happy with v301 Stage 2+ so I haven't switched yet although its tempting...

try 4.00 , they're awesome. you can always go back

[paapaa]

Originally Posted by marv85

try 4.00 , they're awesome. you can always go back

but no V4.00 maps anymore on Cobb site :/

[marv85]

Originally Posted by paapaa

but no V4.00 maps anymore on Cobb site :/

I have some them for I8A0S Which one are you looking for? If you have a different ECU just contact COBB I'm sure they can share.

[paapaa]

Originally Posted by marv85

I have some them for I8A0S Which one are you looking for? If you have a different ECU just contact COBB I'm sure they can share.

i have the I8A0S and looking for Stg2+FMIC Sport maps
IF you have those..could you pm those or mail to paapaa33@hotmail.com

people have different feelings about v.301 and v.400 and 4.01
if v4xx is more powerfull, then v301 should be safer to use? would be nice to really know, what is best choice, because i dont really trust my own butt feelings on this

[marv85]

Originally Posted by paapaa

i have the I8A0S and looking for Stg2+FMIC Sport maps
IF you have those..could you pm those or mail to paapaa33@hotmail.com

people have different feelings about v.301 and v.400 and 4.01
if v4xx is more powerfull, then v301 should be safer to use? would be nice to really know, what is best choice, because i dont really trust my own butt feelings on this

I'm running stage2+ sport and love it. from the logs, my engine loves it as well. It is always good to log to make sure everything is in check.

The highest map I have is stage2+ Sport so ill email that

[rader1]

I also have V400 sport and aggressive maps for I8AOS. If anyone needs them shoot me a PM

[marv85]

Originally Posted by paapaa

i have the I8A0S and looking for Stg2+FMIC Sport maps
IF you have those..could you pm those or mail to paapaa33@hotmail.com

people have different feelings about v.301 and v.400 and 4.01
if v4xx is more powerfull, then v301 should be safer to use? would be nice to really know, what is best choice, because i dont really trust my own butt feelings on this

Originally Posted by marv85

I'm running stage2+ sport and love it. from the logs, my engine loves it as well. It is always good to log to make sure everything is in check.

The highest map I have is stage2+ Sport so ill email that

I emailed you all the maps I have

[paapaa]

Originally Posted by marv85

I emailed you all the maps I have

thanks! got those

[marv85]

Originally Posted by rader1

I also have V400 sport and aggressive maps for I8AOS. If anyone needs them shoot me a PM

PMd for Aggressive maps

[rooringhusky]

If anyone needs the v400 maps I got them too...

About to switch to v401 today and see how I like it..Anyone else having issues with timing with on v401 versus v400?

[RaihaX]

No timing issue for me on v401 aggressive

[rooringhusky]

Originally Posted by RaihaX

No timing issue for me on v401 aggressive

Thanks for the reply RaihaX...loaded them just a bit ago and took a quick 30 min drive...mostly freeway cruising but I let her open up a few times and it "feels" good...Will take some logs tomorrow and see how good it REALLY looks..

[rader1]

Originally Posted by kdiggz

I hope the Easter bunny brings me some race has maps!

Have you tried talking to Cobb about beta testing the meth gas maps?

[EFI Logics]

Originally Posted by kdiggz

I hope the Easter bunny brings me some race gas maps!

We are going to be custom tuning my 135i for 100 octane at the end of next month.

-Josh