Weird hesitation/delay calling all ESS VT2/3 Owners!

joneffingvo · 01-30-2016, 09:27 PM

Hey guys so i've noticed with my dct vt2-625 car that when the car is in the wrong gear/higher gear (e.g. going 40 mph in 6-7th gear) and i give it gas or gun it the car becomes really rough/shakes and it feels like the engine is about to shoot out of the engine bay (no cel or anything), however if you downshift to the proper gear it's perfectly fine and pulls hard. I was curious to know if anyone else experiences this or if they could try it in their car and report back to me!

***UPDATE*** 2/12/2016

Thanks to help of Mike Benvo, and AJ it appears that it's a common problem with Akrapovic exhaust due to the shape/form of the x-pipe. I guess it's a known problem known as the "akrapovic dip" which causes hesitation/delay from 2-2.5k RPM

wheelpro · 01-30-2016, 09:42 PM

Quote:

Originally Posted by joneffingvo

Hey guys so i've noticed with my dct vt2-625 car that when the car is in the wrong gear/higher gear (e.g. going 40 mph in 6-7th gear) and i give it gas or gun it the car becomes really rough/shakes and it feels like the engine is about to shoot out of the engine bay (no cel or anything), however if you downshift to the proper gear it's perfectly fine and pulls hard. I was curious to know if anyone else experiences this or if they could try it in their car and report back to me!

Did you cleared adaptation your DME Ecu early !
Or did you installed this kit early too !

Patrón · 02-01-2016, 10:38 AM

sounds like a tune problem. it seems o2 sensors and plugs are pretty crucial with the kit but i think you would have a check engine light if either were a problem.

joneffingvo · 02-01-2016, 10:47 AM

Quote:

Originally Posted by Patrón

sounds like a tune problem. it seems o2 sensors and plugs are pretty crucial with the kit but i think you would have a check engine light if either were a problem.

I got plugs done, when i got the VT2-625 kit installed as well as rod bearings. As far as o2 sensors i believe they are disabled since i'm running the full Akra GT4 (no holes to plug in o2 sensors) and there's no CEL for them. It's not a big deal or anything just scary because sometimes it feels like the engine is literally gonna blow up or jump out, but once it gets to the correct speed/gear everything is fine. Again this is only when the car is in D mode and i'm driving normal. This never happens in M mode!

Patrón · 02-01-2016, 11:01 AM

Quote:

Originally Posted by joneffingvo

I got plugs done, when i got the VT2-625 kit installed as well as rod bearings. As far as o2 sensors i believe they are disabled since i'm running the full Akra GT4 (no holes to plug in o2 sensors) and there's no CEL for them. It's not a big deal or anything just scary because sometimes it feels like the engine is literally gonna blow up or jump out, but once it gets to the correct speed/gear everything is fine. Again this is only when the car is in D mode and i'm driving normal. This never happens in M mode!

your o2s are still plugged in even if you are catless, the engine and dme rely heavily on what the o2s are reading. that's why you see 50% of the problems with s/c kits check engine lights are o2 related (maybe even n/a car check engine lights)

I still think it's the tune. i've driven in D mode many times in the second setting and it's ran like a smooth old body benz. silky smooth.

joneffingvo · 02-01-2016, 11:03 AM

Quote:

Originally Posted by Patrón

your o2s are still plugged in even if you are catless, the engine and dme rely heavily on what the o2s are reading. that's why you see 50% of the problems with s/c kits check engine lights are o2 related (maybe even n/a car check engine lights)

I still think it's the tune. i've driven in D mode many times in the second setting and it's ran like a smooth old body benz. silky smooth.

I know for a fact that when they went to tune/flash my car they ran into an issue where the ECU locked itself and AJ/ESS had to personally do something. I'm taking my car back for maintenance in a few weeks and maybe i'll have them check everything out. Thanks for letting me man!

Patrón · 02-01-2016, 11:06 AM

Quote:

Originally Posted by joneffingvo

I know for a fact that when they went to tune/flash my car they ran into an issue where the ECU locked itself and AJ/ESS had to personally do something. I'm taking my car back for maintenance in a few weeks and maybe i'll have them check everything out. Thanks for letting me man!

good luck, keep us posted. have you hooked up the ESS software on your computer to see if any codes come on on your computer? you can also clear adaptations etc...

where do you put gas? do you ever put fuel system cleaner in your tank? a bottle of techron or bgk couldn't hurt.

good luck.

joneffingvo · 02-01-2016, 11:09 AM

Quote:

Originally Posted by Patrón

good luck, keep us posted. have you hooked up the ESS software on your computer to see if any codes come on on your computer? you can also clear adaptations etc...

where do you put gas? do you ever put fuel system cleaner in your tank? a bottle of techron or bgk couldn't hurt.

good luck.

You're right the primary's are still plugged in, however the secondary are tied up (no bungs), Unfortunately i don't have a PC, so i haven't been able to hook up anything. As far as gas i used to put in Costco 91 (nothing higher than 91 here in AZ) but since then i've switched to Chevron only. I used to put fuel cleaner every other fill up BEFORE being supercharged. I wasn't sure if it was recommended since being supercharged so i stopped...

Longboarder · 02-01-2016, 12:26 PM

Quote:

Originally Posted by joneffingvo

Hey guys so i've noticed with my dct vt2-625 car that when the car is in the wrong gear/higher gear (e.g. going 40 mph in 6-7th gear) and i give it gas or gun it the car becomes really rough/shakes and it feels like the engine is about to shoot out of the engine bay (no cel or anything), however if you downshift to the proper gear it's perfectly fine and pulls hard. I was curious to know if anyone else experiences this or if they could try it in their car and report back to me!

So the shaking occurs when you are in D and then you floor it and for a very short period of time you feel some violent shaking until it downshifts and then all is well?

Trans adaptation issue maybe?

Do you have the DCT GTS software? If not I would get it.

joneffingvo · 02-01-2016, 12:33 PM

Quote:

Originally Posted by Longboarder

So the shaking occurs when you are in D and then you floor it and for a very short period of time you feel some violent shaking until it downshifts and then all is well?

Trans adaptation issue maybe?

Do you have the DCT GTS software? If not I would get it.

Exactly! Except the the car won't downshift by itself i would have to forcefully do it. I'm running the BPM DCT software which i'm guessing is the GTS tune?

BrewRifle · 02-01-2016, 12:39 PM

Quote:

Originally Posted by joneffingvo

Exactly! Except the the car won't downshift by itself i would have to forcefully do it. I'm running the BPM DCT software which i'm guessing is the GTS tune?

I'm running the same BPM DCT tune and ESS supercharger software without having this issue. I'd try reloading the DCT tune as well.

joneffingvo · 02-01-2016, 12:43 PM

Quote:

Originally Posted by BrewRifle

I'm running the same BPM DCT tune and ESS supercharger software without having this issue. I'd try reloading the DCT tune as well.

Hmmm... You guys have any idea/guess what kind of problem i'm experiencing?

BrewRifle · 02-01-2016, 12:49 PM

Not quite sure, but reloading both tunes might help + re-adapt.

joneffingvo · 02-01-2016, 01:01 PM

Quote:

Originally Posted by BrewRifle

Not quite sure, but reloading both tunes might help + re-adapt.

Yeah i think i'm gonna do that might hold off a bit since i have emissions testing due next month

BrewRifle · 02-01-2016, 01:06 PM

Quote:

Originally Posted by joneffingvo

Yeah i think i'm gonna do that might hold off a bit since i have emissions testing due next month

Ouch, driving around with the 4500 max red line until everything is in a ready state sucks

R_lara · 02-02-2016, 07:47 PM

I don't mix and mingle my tune get one or the other, I have ESS Tune and high performance ESS DCT car runs smooth.

joneffingvo · 02-03-2016, 06:41 AM

Quote:

Originally Posted by R_lara

I don't mix and mingle my tune get one or the other, I have ESS Tune and high performance ESS DCT car runs smooth.

Brewrifle has the same setup as me and his car runs fine... and plus all these DCT tunes are basically the same (M3 GTS software)

R_lara · 02-03-2016, 08:04 PM

Quote:

Originally Posted by joneffingvo

Quote:

Originally Posted by R_lara

I don't mix and mingle my tune get one or the other, I have ESS Tune and high performance ESS DCT car runs smooth.

Brewrifle has the same setup as me and his car runs fine... and plus all these DCT tunes are basically the same (M3 GTS software)

I had idling issues and car used to stall or go into neutral in slow traffic went up and gave ESS a Ring bought a new S/C tune and performance DCT and could not be Happier. You have to much in risk so advise to choose with you think is better for you and talk to only one tuner.

Mfanatik · 02-06-2016, 08:37 AM

What colour are your injectors? There is 2 diff injectors that were used and the revision resolves this stalling and low rpm hesitation.

joneffingvo · 02-10-2016, 04:02 PM

Quote:

Originally Posted by Mfanatik

What colour are your injectors? There is 2 diff injectors that were used and the revision resolves this stalling and low rpm hesitation.

Looks like they are white?

squartus · 02-10-2016, 04:35 PM

Could be that they tuned you for the blue injectors instead of the white, either way ID reflash the software.
I just switched back to BPM from ESS and car is running stronger/smoother.

whats77inaname · 02-10-2016, 04:53 PM

Why don't you hit up Benvo? I'm sure he could point you in the right direction and if it is tune related, get everything resolved quickly enough.

01-30-2016, 09:27 PM	#1
joneffingvo Second Lieutenant 70 Rep 294 Posts Drives: 12 C63 AMG Coupe Join Date: Sep 2005 Location: Tempe, AZ iTrader: (0)	Weird hesitation/delay calling all ESS VT2/3 Owners! Hey guys so i've noticed with my dct vt2-625 car that when the car is in the wrong gear/higher gear (e.g. going 40 mph in 6-7th gear) and i give it gas or gun it the car becomes really rough/shakes and it feels like the engine is about to shoot out of the engine bay (no cel or anything), however if you downshift to the proper gear it's perfectly fine and pulls hard. I was curious to know if anyone else experiences this or if they could try it in their car and report back to me! *UPDATE* 2/12/2016 Thanks to help of Mike Benvo, and AJ it appears that it's a common problem with Akrapovic exhaust due to the shape/form of the x-pipe. I guess it's a known problem known as the "akrapovic dip" which causes hesitation/delay from 2-2.5k RPM __________________ gone but not forgotten Last edited by joneffingvo; 02-12-2016 at 08:53 AM..
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02-01-2016, 10:38 AM	#3
Patrón PAZUZU 545 Rep 2,058 Posts Drives: '15 M4 Join Date: Sep 2013 Location: San Antonio, TX iTrader: (1) Garage List 2015 BMW M4 [0.00] 2009 BMW M3 [10.00]	sounds like a tune problem. it seems o2 sensors and plugs are pretty crucial with the kit but i think you would have a check engine light if either were a problem. __________________ 2009 M3 DCT ESS625+ SOLD 2015 M4 BSM/Silverstone F4LCON @texasMclub IG @jagemoets
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02-01-2016, 12:49 PM	#13
BrewRifle Lieutenant Colonel 420 Rep 1,678 Posts Drives: 2011 MCB E92 M3 Join Date: Jun 2013 Location: Austin, Texas iTrader: (4) Garage List 2011 BMW M3 [7.56] 2013 BMW X3 35i [0.00] 2009 BMW 135i [8.00]	Not quite sure, but reloading both tunes might help + re-adapt. __________________ 2011 Monte Carlo Blue E92 ///M3 - ESS VT2-625
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02-02-2016, 07:47 PM	#16
R_lara First Lieutenant 80 Rep 317 Posts Drives: E90 2009 M3 Ess VT2650, F30 33 Join Date: May 2012 Location: Santo Domingo iTrader: (0)	I don't mix and mingle my tune get one or the other, I have ESS Tune and high performance ESS DCT car runs smooth.
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02-06-2016, 08:37 AM	#19
Mfanatik Private First Class 13 Rep 136 Posts Drives: E90 Join Date: Aug 2014 Location: Mississauga, On Canada iTrader: (0)	What colour are your injectors? There is 2 diff injectors that were used and the revision resolves this stalling and low rpm hesitation.
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02-10-2016, 04:35 PM	#21
squartus Major 314 Rep 1,017 Posts Drives: 2010 E92 M3 6MT Join Date: Apr 2013 Location: Mississippi iTrader: (0) Garage List 2010 E92 BMW M3 [10.00]	Could be that they tuned you for the blue injectors instead of the white, either way ID reflash the software. I just switched back to BPM from ESS and car is running stronger/smoother. __________________ 4.4L LC stroker/ESS VT2-625/Volk te37 sl's/AA exhaust/DSS Carbon Fiber driveshaft/ARH Headers.. etc
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02-10-2016, 04:53 PM	#22
whats77inaname Banned 825 Rep 3,387 Posts Drives: when at all possible Join Date: Aug 2011 Location: Tx iTrader: (25)	Why don't you hit up Benvo? I'm sure he could point you in the right direction and if it is tune related, get everything resolved quickly enough.
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