need help with LOG,, afr go too rich!

[marvix]

After some longer pulls AFR drops to ~10.8.... where can be problem? STFTs looks ok...

datazap.me | Cr4sh | Log 1717103007

datazap.me

thanks for help

 

[marvix]

new data....

car change fuel mode to 6,, then start time corrections and missfires... on 4,5,6 (bank2) + error codes: super knocking cylinder 4...

it may cause bad MOSSFET or injector driver in MSD80? It only happens in long pulls,, 5th or 6th gear around 6000 rpm..

datazap.me | Cr4sh | Log 1717158911

datazap.me

 

[vadonchez]

I'm asking myself how is it possible to have such low MAF(g/s) for this boost level. On V7 2+ OTS MHD I reach 330g/s@6krpm with 14-15psi. On your log you only have 320g/s @6000rpm with 23psi
Is it du to N20 TMAP?

Log your LTFT next time.

 

[marvix]

yep iam on 3.5 bar sensor, but dont knew how much g/s may it be,, MAF is only calculated and isnt used to anything i hope... car has only map a tmap sensor,, variable calculating with load to show MAF

 

[carabuser]

Just the result of a bad tune. Probably catalyst protection kicking in. The whole tune looks lazy in general.

Ask the tuner to fix it and if he can't then ask for a refund or name and shame.

 

[marvix]

tune is in progress,, is WHPadict.. He told me, that probably MOSFET in DME is KO, so i order new one...