JB4 Log, 22 psi on map 1 !!

rustyminded · 03-21-2015, 05:08 AM

Hey guys, yesterday I was driving on map1 and felt the car stronger than usual but after few pulls it started a little struggle, I took a log and found it hit 22 psi on map 1 !!! what should I change as obviously I can't stay at this psi with the fuel I use (RON92+octane) 91 U.S

I uploaded the log as well

TomDenmark · 03-21-2015, 08:25 AM

Can't really help you, but what exactly do you mean by "it started a little struggle"?

rustyminded · 03-21-2015, 09:28 AM

Quote:

Originally Posted by TomDenmark

Can't really help you, but what exactly do you mean by "it started a little struggle"?

there was some kind of hesitation at high rpm & car felt slower.

f30luxline · 03-21-2015, 10:03 AM

This is most likely detonation or preignition, both very bad. I would talk to BMS on why you are seeing boost spike. Drive the car easy until this is figured out.

Did you save a pic of the log?

Yellowflash · 03-21-2015, 10:26 AM

Might be issue with not quality fuel, and what was the outside temperature?

f30luxline · 03-21-2015, 12:01 PM

Quote:

Originally Posted by Yellowflash

Might be issue with not quality fuel, and what was the outside temperature?

Quality of fuel is not going to cause boost spike. I'm not sure what would cause this beside faulty components, this is why my recommendation was to seek assistance from BMS. You should check out the components associated with the turbo/boost as well.

The first point of diagnoses would be to remove the tune.

Thescout13 · 03-21-2015, 04:09 PM

Quote:

Originally Posted by f30luxline

Quote:

Originally Posted by Yellowflash

Might be issue with not quality fuel, and what was the outside temperature?

Quality of fuel is not going to cause boost spike. I'm not sure what would cause this beside faulty components, this is why my recommendation was to seek assistance from BMS. You should check out the components associated with the turbo/boost as well.

The first point of diagnoses would be to remove the tune.

It could be that or a lack of EWG control. You may overboost every once and a while without the EWG control, but I've never heard of it on Map 1. Then again with all the info out there who knows. Emailing Terry directly is definitely you best bet

rustyminded · 03-21-2015, 04:29 PM

Quote:

Originally Posted by Yellowflash

Might be issue with not quality fuel, and what was the outside temperature?

It was around 18 degree celsius

rustyminded · 03-21-2015, 04:36 PM

I emailed Terry, he said "It's only over target about a psi or so, and the throttle is proportionally closed. So not a big deal" but he told me to set FF to 0 and see if it helps, that was a bit comforting I took a log after setting FF to 0 and car is different I am not sure yet if it's better till I drive the car in morning in warm weather. he also said octane has nothing to do with overboost and EWG specific board will help in my situation. anyway here is a log he said it's fine now.. thanks a lot Terry

TomDenmark · 03-21-2015, 04:48 PM

Strange, I can't read your 2. log for some reason, it's almost missing all data..
Is it just me?

rustyminded · 03-21-2015, 04:52 PM

Quote:

Originally Posted by TomDenmark

Strange, I can't read your 2. log for some reason, it's almost missing all data..
Is it just me?

ops that was stock map 0

here is the other one

FSociety · 03-29-2015, 11:37 AM

Looks similar to what Torque Pro data logging options

03-21-2015, 08:25 AM	#2
TomDenmark Second Lieutenant 61 Rep 205 Posts Drives: 14' 320i ActiveFlex Join Date: Dec 2013 Location: Brazil, SP - Valinhos iTrader: (0)	Can't really help you, but what exactly do you mean by "it started a little struggle"? __________________ 320i Activeflex - JB4 - Afe Airfilter - VRSF IC - ER DP - ER CP - @Ethanol
	Appreciate 0 Quote

03-21-2015, 10:03 AM	#4
f30luxline e92 - 335i 179 Rep 743 Posts Drives: thisonetimeatbandcamp Join Date: Nov 2013 Location: Orlando iTrader: (1)	This is most likely detonation or preignition, both very bad. I would talk to BMS on why you are seeing boost spike. Drive the car easy until this is figured out. Did you save a pic of the log?
	Appreciate 1 Bts535i7.00 Quote

03-21-2015, 10:26 AM	#5
Yellowflash Private 47 Rep 83 Posts Drives: BMW F30 328i xdrive M package Join Date: Apr 2014 Location: Serbia iTrader: (0)	Might be issue with not quality fuel, and what was the outside temperature?
	Appreciate 0 Quote

03-21-2015, 04:48 PM	#10
TomDenmark Second Lieutenant 61 Rep 205 Posts Drives: 14' 320i ActiveFlex Join Date: Dec 2013 Location: Brazil, SP - Valinhos iTrader: (0)	Strange, I can't read your 2. log for some reason, it's almost missing all data.. Is it just me? __________________ 320i Activeflex - JB4 - Afe Airfilter - VRSF IC - ER DP - ER CP - @Ethanol
	Appreciate 0 Quote

03-29-2015, 11:37 AM	#12
FSociety IG @bmwF9xG80 3813 Rep 7,593 Posts Drives: G80 M3, X4M, G07 X7m50 Join Date: Apr 2012 Location: NYC to NJ to Orlando FL iTrader: (3) Garage List 2023 BMW G80 M3 [0.00] 2020 BMW X4MC [0.00] 16' BMW X4 M40i [10.00] 06 Cadillac STS [0.00]	Looks similar to what Torque Pro data logging options __________________ 60-130mph 6.5s X4M #HCP 60-130mph 5.0s G80 M3 #OrlandoAutowerks Sauce IG: @bmwF9XG80 Last edited by FSociety; 04-01-2015 at 08:16 PM..
	Appreciate 0 Quote