Preemptive feedback knock correction

crippsdr · **Posted:** Sat Mar 07, 2015 1:55 am

Anyone got these for E2VG212E and A8DH200V

Underbraker · **Joined:** Mon Jun 08, 2015 4:52 am **Posts:** 144

Found this thread just before i wanted to open my own one.

Anyway, i've found this "alternate" FBKC happening on my car as well, and for me it seems that most FBKC i get at relevant loads (>1.2g/s) comes through this alternate method.
My current tune is quite jumpy at some points, MAF/load and timing wise, so that would match explanations here.

Now, as i read the information in this thread, popular belief is that this alternate logic is not triggered by perceived knock through the knock sensor, so it's most probably not real knock. Is this verified?

redwagon · **Posted:** Wed Apr 05, 2017 2:08 am

Can I get the definition for AE5W100V? This logic seems very active in the later ROMs once you start spooling faster. Much obliged!

redwagon · **Posted:** Fri Apr 28, 2017 6:24 am

Pretty please?

td-d · **Posted:** Fri Apr 28, 2017 6:40 pm

Since you asked so nicely... DCE80

redwagon · **Posted:** Sat Apr 29, 2017 5:59 am

td-d wrote:

Since you asked so nicely... DCE80

Sweeeeet. Thanks Oren!

ckibue · **Posted:** Wed Jun 21, 2017 5:46 am

For the JDM R205 AZ1G500Z;

Code:

Preemptive_FBKC_Max_RPM_Activation_Threshold        000C7CEC 
Preemptive_FBKC_Min_ECT_Activation_Threshold        000C7CF4 
Preemptive_FBKC_Min_RPM_Activation_Threshold        000C7CE8 
Preemptive_FBKC_POL_Enrichment_Activation_Threshold 000C7CF0 
Preemptive_FBKC_Threshold_Sub                       0002DDB2 
Preemptive_Feedback_Correction_Retard_Value         000CE144 

roziV · **Joined:** Sat Oct 29, 2016 5:40 pm **Posts:** 83

How about A2ZJ500F?

roziV · **Joined:** Sat Oct 29, 2016 5:40 pm **Posts:** 83

No one?

I have no idea about the string I should use to find them out if possible that way. I have some awful preemptive around 0.76-0.9 and I cannot figure it out even though I've managed to smooth the boost target with as less as possible boost error.

infinite_rpm · **Joined:** Tue Jun 11, 2019 8:47 pm **Posts:** 1

Hi good day, any help to find the address for pekc for a2tb100v

I tried adding 10 to the feedback kc retard table and the value it returned was 2.0.

Searched other addresses around the feedback kc retard value and none of them returned 1.41

Thanks in advance

rac · **Joined:** Tue Apr 15, 2008 11:11 am **Posts:** 162

resurrecting this
looking for defs for A8DK100P-EE

its' been driving me mad, I have literally stripped the engine to bare longblock and reassembled it back making sure everything is tight and there are no external sounds, as I was looking for phantom knock

benflynn · **Joined:** Tue Jul 14, 2020 5:11 pm **Posts:** 44

Would using speed density and having wideband or something else input on the unused MAF input trigger this with fast voltage changes while the other conditions are met?

riksk · **Joined:** Sun Jun 28, 2020 2:25 am **Posts:** 237

Adding to this;

AZ1G900C ~ ce344

That table should be put into the public definitions, for sure

JJayJJ · **Joined:** Fri Sep 18, 2020 2:22 am **Posts:** 21

Could someone check these tables for A2WD012A?
Thanks a lot!

kenjiurban · **Joined:** Thu Nov 23, 2017 10:42 am **Posts:** 24

ckibue wrote:

For the JDM R205 AZ1G500Z;

Code:

Preemptive_FBKC_Max_RPM_Activation_Threshold        000C7CEC 
Preemptive_FBKC_Min_ECT_Activation_Threshold        000C7CF4 
Preemptive_FBKC_Min_RPM_Activation_Threshold        000C7CE8 
Preemptive_FBKC_POL_Enrichment_Activation_Threshold 000C7CF0 
Preemptive_FBKC_Threshold_Sub                       0002DDB2 
Preemptive_Feedback_Correction_Retard_Value         000CE144 

Could someone help me with the 32bit base file coding for these tables? i can get the preemptive feedback correction retard value working by coping the FBKC retard value table but im not sure how the other tables are defined.

Pretty please.

Even better if the address were also given for az1g900c.

Many thanks!

RomRaider

Preemptive feedback knock correction

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