yes they do when I use my Consult II ( yes I have the real thing) I can see how much % of correction is being made in Engine or START->Work Support->Self Learn.

Read ESM/FSM, esp w. diag procedures that have 'Self Learn' to be cleared to begin diagnosis in DTC Confirmation w/ O2s.

I figured you don't dyno on a clayton, but 20hp on 2* advance, you were blessed from the Nissan gods.

 

I agree, self learn does occur under closed loop, but during open loop, when the MAF & CPS have control the ECU will not override the AFC in the A32 - A33B, but has been seen to occur on the A34.

If you could show me data logs of your AFR that show an override ( override meaning week #1 AFC % -5%, thus giving 13.8AFR during WOT, then the next week, same % corrections, and the AFR going back to whatever the new learned value is @ WOT) , I will feel free to admit I was wrong, but until then, let's stop the small talk and present quantitative data.

 

I got dyno'd and it looks like Nismo_star is right

I pulled the same numbers I pull before getting dyno tuned last october and the tq is actually a bit less...214whp/225wtq ...fuking self learn sucks ***** . No more performance mods for me

These numbers are only slightly higher than what a stock 5.56mt puts down...the only mods I'll do is just re-attach my popcharger and do the 17* timing advance since its easy to do...but im very disappointed. Funny thing is, the car still pulls like a ****

I'll post runfiles later

 

Do you have the actual DRF's(not just pictures)? Also, did your AFR change? I'll be the first to admit, I was wrong, but my car must be different.

All my DRF's and AFR's are consistent every time I get dyno'd, w/no change in the AFC settings.

 

my AFR is a bit more lean than last time. The guy said he would email me the runfiles...ah

Quick question though...would the timing advance and the popcharger make me run even more lean if I put them on now? I should get another dyno to see after those are done...but no more "tuning" for me

Nmex...do you have a stock ecu?

 

The only way the ECU can re-adjust the a/f ratio is if it knows what the a/f ratio is in the first place.


A33B ECU's are oblivious, hence open loop.

 

I thought my one liner might catch some supporting attention.

I can see why A34's can override since, well, OEM WB's on 05+ models.

Not sure what is going on with your dyno SLVR. Call it a day on tuning, and claim 230 w/ a stock airbox, that's what I would do if I were you and hanging up my belt.

 

[QUOTE=NmexMAX;6273312]I thought my one liner might catch some supporting attention.

I can see why A34's can override since, well, OEM WB's on 05+ models.

Not sure what is going on with your dyno SLVR. Call it a day on tuning, and claim 230 w/ a stock airbox, that's what I would do if I were you and hanging up my belt.[/QUOTE]

...Im still gonna do those few additional mods but yea, Im calling it a day

 

Which few mods?

 

just the popcharger and advanced timing...mods that dont necessarily need to be tuned to take full advantage of them

 

Not true regarding the POP charger.

 

..yea

But its not like the "tuned" settings will hold anyway so what the hell, might as well toss it on since I have it. It sounds good too haha.

 

You don't know that for sure. You need your AFR from both dynos to prove this. Also, your car is the ONLY 5.5 gen in history to exhibit this behavior.

 

I feel special

No but seriously...this sucks *****. I dunno, the car "feels" like it has so much more ***** than whats shown on paper. Sorry, the guy didnt email me the files yet.

Im thinking of just putting on the pop and the advance timing, getting it tuned properly from Nismo_star's shop without the TS ecu and just pray those settings will hold....his shop knows all about tuning on the open loop etc etc which is great.

I also forgot to mention that these lastest numbers (214/225) are uncorrected. Mostly all graphs I see of people here are corrected.

 

cooler air makes you feel as if you are pulling like a ****.
dyno is still using the sniffer. need an actual wideband, and check ambient/climate print out from last run vs this run. I'm sure its considerably cooler. Wait til you tune in late spring and summer.

Nmex, my point was at WOT self learn is killing his settings, never said anything about part throttle self learn changes. Here is something for you to chew on, had plenty of cars that never go WOT and yet when we do ECM wrap-up(Dealer jargon for clear and reset all category codes, and % corrections)I have never seen a self learn on any car @ 100%, unless it was recently cleared of all emission related codes using generic scanner.
The true test is in SRT readiness, which if shown none are completed, I know for a fact it was reset very recently. I've had plenty of times where customer comes in for a state inspection, and has had a SES problem fail for SRT Non-Readiness, and when agreed to pay for readiness, has SES pop up for EVAP codes, which sometimes is covered under warranty. Even accusations from customer that have had a code cleared and done 3 driving cycles, come in, and poof SES is on, and blame (stealership) for provoking it to get $$$ from him/her.(A quick check of SRT status, reveals truth.)
There have been discussions about self learn on 4th gens, 5th gens when SAFC first came out, why ? Cause everyone wants more power. When can you get it ? WOT.
This is the whole point about mentioning self learn.

 

My car must be special then.

 

so I just thought about something...my engine only has 6k miles on it. Could having a new not fully broken in engine be the reason for those numbers on my last dyno? I remember reading somewhere that VQs start making their real power after 10k

 

Ok, so this is the first dyno with THIS engine? The other 2 dynos were with another engine?

 

nope...all dyno's were done with this engine (the new one)...last dyno was done at 4500 miles (214whp PRE-dyno tune) and this latest one 6000...I dont drive all that much

I dont know whats going on here but hotshot headers and the bpipe are good for more than 10whp and it seems I only gained ~10whp over what a stock 5.56mt should be doing...I know Im on a stock intake but still. I dont know how I only got 213whp...it amazes me

 

You dyno'd 230 with the same engine, so no, there goes that theory.

Do you have the DRF's yet? Do you have the DRF's from your last (230) run?

 

230 after the tune...and it didnt hold. Im sure if it got "tuned" this time it would be around 230 as well but it wouldnt hold for that long

So lets compare pre-dyno numbers...214 from last year and 213 from the recent visit

the shop still didnt email me the runfiles yet...ill have to call them and remind them. I need to check my comp. for the ones from the last dyno

 

What’s important now is the AFR on your latest runs.