Richen up rpm at full boost

[MichaelR32GTR]

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 

[Adamw]

Yes, increasing VE will add fuel.

But, if the fuel(VE) table is already tuned and the mixture runs close to target now then leave the VE alone, just change the target and the AFR will follow.  

[MichaelR32GTR]

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 

 

 

[MichaelR32GTR]

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 ?

[Adamw]

CLL is irrelevant.  In modeled mode your VE table represents air flow.  Your AFR or lambda target table tells the ecu how much fuel you want added to your air.  This is always in effect regardless of CLL being used or not.    

[MichaelR32GTR]

Perfect that’s exactly what I needed to know 

 

thankyou 

[MichaelR32GTR]

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 ?

[Confused]

If all your supporting data - injector deadtimes, Fuel table, charge temp approximation, etc isn't correct, changing the Target won't make the impact you're expecting.

[MichaelR32GTR]

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