[Inconsistent lambda readings between runs]

I asked a while back how to go afew points richer in lambda, 

I made minor changes to the afr target table, but I noticed I’m getting different readings each run,

 

first run will show 0.77 lambda from full boost, then as revs climb will end up going 0.76 and then 0.75

even though afr target is 0.79

 

second run will show 0.795 at full boost down to 0.77 up top

 

any reason why it’s going so far off afr target values ?

ps I have not touched VE table as I just wanted to go slightly richer 

 

should the afr target table have MGP on the axis table or MAP ?

[Fury G4+ wideband sensor]

I’m running a g4+ fury, using the onboard wideband and Bosch o2 sensor 

 

just wondering so these ever need calibrating ?

if so what’s the method to calibrate the o2 sensor 

 

thanks 

[Richen up rpm at full boost]

Thanks

just got another log and it’s acting the way it should and I’m happy where it’s at 

 

dont know what happened last log 

 

Thankyou 

[Richen up rpm at full boost]

So after getting logs and changing afrs (richer)

lambda1 in logs is showing at a point on boost 0.80 lambda, but the afr target is showing between 0.77 and 0.78 lambda so I let seems whatever changes I’m making in afr target is not actualy richening the afrs

 

any reason why, could wideband sensor be off ? (It’s a genuine bosch sensor using the onboard link g4+ fury wideband and never had issues with this for years)

 

can these be calibrated ?

[Richen up rpm at full boost]

Perfect that’s exactly what I needed to know 

 

thankyou 

[Richen up rpm at full boost]

Just want to clarify before making changes,

 

in the “closed loop lambda” table 

 

it’s set to: Stoich mode (wide band), should this be in “auto mode (wide band)

 

and also rpm lock out high: is set to 5500rpm, does this mean closed loop lambda is not active after said rpm ?

[Richen up rpm at full boost]

Ok I will have a go at doing that via afr target 

I just want to change my on boost afrs from 0.79 lambda to 0.78

 

but if I recall my closed loop lambda turns off at around 5500rpm from what I recall if that matters 

 

 

[Richen up rpm at full boost]

I want to add some extra fuel on full boost rpms and I just want to confirm that bigger numbers in the modeled fuel table 1 will add fuel 

 

anything else needs to be done or just in the fuel table 

 

thanks 

[Bosch temp/pressure calibration table]

Thankyou 

[Bosch temp/pressure calibration table]

17 minutes ago, Ghosty033 said:

If its for the common M10x1.0 sensor, Bosch standard NTC for temp and Bosch 10 Bar for pressure

I don’t have “Bosch 10 bar” in my drop down menu 

[Bosch temp/pressure calibration table]

Hey guys

 

which calibration table should i be using for the Bosch temp/pressure sensor, when setting up the pressure part 

 

temp is fine and working perfectly 

 

ecu is Link G4+ Fury 

 

thanks

 

[Ac rev hang]

Will post tune file today or tomorow 

 

and get a log thanks 

[Ac rev hang]

Just got around to regassing my ac, and I noticed when changing gears with it on that the revs hang between gear shifts 

so only happenes when I’m all the way off the throttle to change gears

 

would this be because of ac step table values ? Or e throttle table settings ?

 

car is a r32 gtr with Hypertune manifold and 82mm DBW throttle 

 

with ac off everything is perfect drivability wise etc,

even idle with ac on, idle is perfect and steady 

 

any help on this little annoying issue would be great 

thanks

[Link g4+ wastegate duty% questions]

Ok thanks for that I will give that a try and see

 

so no real need to the 370kpa line values higher then 350kpa

[Link g4+ wastegate duty% questions]

Hey guys

I want to add afew more psi boost to my tune, it currently holds around 34/35psi from 6000rpm to redline 

having a look at my wastegate duty% table the duty% in the 350kpa line from 6000rpm onwards is around 22-24% duty.

the next line is 370kpa but the values (between around 20-22%duty) are less then those in the 350kpa line 

 

my question is, shouldn’t the duty be higher as it makes higher boost,

is the lower values in 370kpa just to stop it over boosting or going over 350kpa

or is that perfectly normaly 

 

 

[coasting in neutral idle hunt]

Thanks will be back out in the car maybe Friday 

il turn it off, get a log 

 

and also get a log of it as is and see where we stand with this 

[coasting in neutral idle hunt]

On 5/6/2022 at 1:57 PM, Adamw said:

Id say it is the large variation of numbers across the top row of you E-throttle target table.  I would generally have the same number right across.

Changed to same numbers as what it idles at 1000rpm which is 5.0 across the top

a higher value from 1500rpm and up made the revs hang 

a value of 5 from 0, 500rpm made it stall

i just put them back as is and booked for a tune to iron out these little issues on the dyno 

thanks 

[coasting in neutral idle hunt]

Odd thing is, it never did it until I found in my speed sources that

“driven wheel speed source” was set to average rear speed

and 

“non driven wheel speed source” was set to average front speed

 

once I changed them both to “LR wheel speed” it started doing this 

went through all settings and made sure everything speed related was running off di6 and LR wheel speed

 

also as per the previous post about speed lockout in idle speed control, I tried 10 and 20kmh like you suggested  and also the 2kmh as per default but that didn’t affect the hunting 

 

will try change ethrottle target on top row and see how that goes 

 

thanks 

[coasting in neutral idle hunt]

hey guys

hopefuly i can get this little annoying issue sorted

 

if i pop the car in neutral and coast down a steep hill for example, or a steep driveway etc the car hunts until i come to afull stop, or drive away normaly

 

i have attached a log of the hunt and my tune aswell

hopefing its something silly with some settings etc

 

thankyou 

 

hunting log - https://drive.google.com/file/d/1LUB1a6A9VqdWRGFzG2tcPPBzS3W8uR7-/view?usp=sharing

tune file - https://drive.google.com/file/d/1jwcuvSSOpYSVVswK5Y1IODkiv307tVrB/view?usp=sharing

 

[Idle speed control - speed lockout kmh]

Hey guys 

just finished installing a tailshaft speed sensor on my r32 gtr, got it calibrated and running well just checking over everything now in the ecu

 

just have a question, in my idle speed control table, it is set to closed loop - ethrottle,

What should the speed lockout (in kmh) be set to, what’s a good recommended speed for closed loop to start operating 

 

Thankyou 

[Driven wheel speed questions]

I did go ahead and order that tailshaft speed sensor kit, will be installed when car goes up for tuning in coming weeks

 

on a side note, I saw Haltech has a gps module 

https://www.haltech.com/product/ht-011310-gps-speed-input-module/

 

would there be any issues running that with a link fury? Any calibration issues etc ?

 

[Driveshaft speed sensor kit - r32 gtr]

That’s perfect info

 

thankyou 

[Driveshaft speed sensor kit - r32 gtr]

Hey fellas

 

after having numerous speed related issues in my r32 gtr using stock abs speed sensors etc

 

i think I have decided to purchase a rear tailshaft speed sensor kit using a cherry speed sensor 

this will be far more reliable and accurate 

 

just have afew questions in regards to this been run with a g4+ fury

-the sensor has 3 wires, sensor ground, 5v and a signal to a spare digital input I’m assuming ?

would that input be a “GP speed” digital input ? 

 

Do we still leave the factory “LR wheel speed” on DI3 active or can it be disabled once the new speed source is running 

 

thanks

[Driven wheel speed questions]

Is there a way of getting a more reliable wheel speed on an r32 gtr 

 

gps ?

tailshaft speed sensor etc ?

[Driven wheel speed questions]

YES ! it did feel exactly like the launch control was activating 

 

im going to replicate what it does and get a log and report back

 

thanks !