I think you ought to try the crank re-learn, before you get too far. Then do the enrichment rate, and try to get something to at least read 02's.

 

Obviously doing the crank relearn won't hurt anything and you don't have to change anything to do it...so do that.

Your blown, IMO you should invest in a WB. I agree with dc...you look lean. Your knock more than likely has alot of truth to it. The knee jerk reaction is too fatten up your PE Multiplier (as far as WOT goes)....BUUUUUUUUT looking at your tune your PCM is commanding 11.56 @ 3600 to 5200 and 11.47 @ 5600 to up. (stoich/1.27 & 1.28). Soooo...maybe a fueling issue? You have a Fuel pressure gauge? Me?...make sure that puppy is getting the fuel it needs. If crank relearn and changing the pe enrichment rate doesn't do anything toruble shoot your fuel system.

AFA part throttle goes...again your ve table looks lean to me...but if you have fueling issues then thats another story.

Once you get this kr issue worked out...tackle that ve table. Hell HP has it own help file for part throttle tuning. Give it a whirl...with a WB of course is a whole hell a lot easier.

 

ok guys, i got most of the KR issues worked out it looks like. I uploaded a new tune that was tweaked a little by chris johnson and myself. My KR is ALOT less now. However, when i tried to do the crank relearn, i'm not so sure it worked? i'll try it again later today. anyhow, the KR was reduced significantly, and i left my timing tables exactly as they came from Brian at pcmforless. anybody want to check it out?

 

here ya go guys, here is the latest histogram KR. you can compare it to the old one up above. i know it's not all good, but gettting there.

 

 

 

knock a degree or two off that 1.12 to 1.20 row. See if that gets rid of that kr @ WOT. What did you guys do specifically that helped?

 

-we upped the maf airflow vs freqeuncy (which i don't know what that does exactly)
-upped the ve table by 1.50357 from 4400rpm and up
-made just a couple of minor adjustments to the open loop f/a vs coolant temp vs map (don't know what this is either?)
-changed pe enable delay rpm from 5500 to 0
-pe enable from 90 all the way acrossed to gradually going down from 80 to 30
-enrichment rate to 1.0000


i have another question. when tuning out kr, am i supposed to be looking at only the high octane table, or both high and low?

 

The MAF frequency, shooting in the dark on this table will be worthless. Once you have tuned the ve table then you should move onto the MAF frequency. You are porbably hurting your "cause" messing with this table without the proper calcs.

Upping the VE table in the areas you plan to be in PE won't help you much either.

pe enable TPS is fine, it will send you to pe (more fuel) sooner at lower TPS. By changing the rpm to 0, you are now just telling thePCM to watch TPS, not RPM.

I copy my high octane to my low, so I know the pcm is always looking for the same timing in those cells. If you have lower timing tables in the low octane, the PCM will learn between the low and high tables in the cells that it sees knock...it is trying to fine the spot of timing that doesn't cause kr. (assuming that timing is the issue any way, if you accidently put 89 octane in it, it would knock like hell obviously, but the low octane table would help the pcm learn the fix)

I don't remember you answering any questions about when you noticed kr. Did all of a sudden you started to get knock or have you always had kr and now you are trying to get rid of it? It might be hard to find kr and it's causes, but it is rare (from reading people's experiences) to see that you need to make hundreds of changes to your tune. How about your air tube/intake? Have you changed/cleaned a filter lately? The joints are loose or air getting into the tube AFTER the MAF. If so, your PCM won't see that air and therefore not make many adjustments when you give it throttle...no extra fuel as needed. (This happened to me). If you got this tune and then that's when you see all this kr then the tune is obviously the problem, but I doubt you'll see these amounts of kr from your tune. Your pcm is pretty much demanding what it should be reasonably less kr in your scenario.

(that's a mouth full) sorry for babble...I feel for ya...been threw this myself.

FWW, I copied your ve table and stuck it in my tune. I didn't notice any difference in my kr issues (I have my own, but to no extent as much as yours). I am still in the middle of tuning, so no big deal to try it. Looked safe enough.

 

ok, first off, thanks a bunch for your reply. getting rid of this KR is kinda fun, seems a bit of a pain, but i'm learning alot from going through all of this.

as far as the MAF freq and ve tuning, those changes were not made by me, but they did seem to help. i don't want to start tuning other areas such as the ve table until i have the kr under control.

i think i will copy my high octane table to my low octane table. no sense in guessing which table the pmc is using. if both are the same, it will be easier to tune out the kr right?

when did i notice kr? well, i just noticed it after i started playing with hptuners. i got the program for xmas so right after that is when i started tuning/logging. i've been running the pcmforless radix tune since about late december and the radix was installed in early december if i remember correctly.

lets just say my timing is cool, and it is not causing the KR. what should i be looking for then? what tables should i focus on?

i did what you suggested, i knocked a couple deg's of timing out from the areas you mentioned in a couple posts up. i re-scanned some more. i'll post the results here in a min.