MichaelR32GTR

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 ?

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

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

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 ?

Perfect that’s exactly what I needed to know thankyou

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 ?

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

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

Thankyou

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

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

Will post tune file today or tomorow and get a log thanks

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

Ok thanks for that I will give that a try and see so no real need to the 370kpa line values higher then 350kpa

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

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

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

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

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

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

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 ?

That’s perfect info thankyou

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

Is there a way of getting a more reliable wheel speed on an r32 gtr gps ? tailshaft speed sensor etc ?

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 !