Anyone else overboosting on stage 2?

I know there is a map for over boosting but the thing is i'm not hitting fuel cut which should be at 26psi and i'm spiking 27psi. My wideband is coming in the mail so no AFR's as of yet.

Mods: HKS drop-in
Invidia DP + Test pipe combo (Catless)
Stock catback
AP stage 2 HKS map

I know i'm not following suit with the mapnotes not having a full exhaust i'm just wondering if anyone else isn't hitting fuel cut.

Mine also over boosts to 28 psi with the boostpill in. Mine only spikes under WOT for just a fraction of a second. I'm also waiting for AF gauge.

Wow... 28 with the pill in? Mines 27 with it out.

Maybe i'll try putting the pill back in.

Does yours boost cut??

At what RPM do you see the spike? Does it continue or taper back down? If it's low RPM, high load, most likely expected with a test pipe.

Before my protune, I overboosted with the regular HKSstg2 map (non LDWG) but when I did, it spiked to 30psi. My car now with a MBC will spike to 27-28 at times and it still doesnt go into limp mode. Im not 100% sure, and someone correct me if Im wrong, but I think the boost has be sustained for a certain amount of time for the ECU to concider it an overboost condition.

12357

12358

12359

Heres the logs... OMFG my injector duty cycle is 95-98%!!! WTF! Please, anyone with tuning experience enlighten me as to why in the hell im maxing my injectors with intake, tp and tune????

Use the low waste gate map, that's why they are there... For cars that overboost.

Use the low waste gate map, that's why they are there... For cars that overboost.

Yes, I get that. But my injector duty cycle shouldn't be above 90%

12357

12358

12359

Heres the logs... OMFG my injector duty cycle is 95-98%!!! WTF! Please, anyone with tuning experience enlighten me as to why in the hell im maxing my injectors with intake, tp and tune????


Better question is, why are you knocking so badly??? That's quite a bit of knock in the higher RPMs.

I really don't think that is "Knock" I think it is a false positive. I'm flashing to my stage 1 map and seeing if i get the same result.

I really don't think that is "Knock" I think it is a false positive. I'm flashing to my stage 1 map and seeing if i get the same result.

What would make you think that? lol...

I am running 27 psi with the pill out. You might be boosting higher because of your elevation. If you are at sea level then you are expected to boost a few psi higher.

I really don't think that is "Knock" I think it is a false positive. I'm flashing to my stage 1 map and seeing if i get the same result.

From my limited experience, false knock is much more likely to occur at lower rpm(I log A LOT). Yours is at high rpm which would lead me to believe that it's real knock. Up to 11 counts or so which I think is not too good. But I'm paranoid about pretty much everything when it comes to my car, so I dunno. I ran the same map the other day and never got more than 1 count.

Yeah, I switched to the overboosting map this morning. But DC traffic limited me in my going WOT lol I'll do a WOT run tonight and do some logs. I did notice that I am still at or above 90% IDC and my boost was right around 25psi

Yeah, I switched to the overboosting map this morning. But DC traffic limited me in my going WOT lol I'll do a WOT run tonight and do some logs. I did notice that I am still at or above 90% IDC and my boost was right around 25psi

With my dyno tune; stock injectors are @ ~82%; 27-28 PSI, then gradually increasing to 100% towards red-line; 20 PSI.

I have been running the stage 2 flash for sometime now...with mods in sig.

I spike 28 psi with pill out and it tapers off to ~18-19 at redline. I have never hit the cutoff, just nice hard pull to redline everytime.

Something doesn't seem right though from you logs. I honestly would ask hollywood to look at them. If I ever have questions about my AP he is the one I would ask.

I have been running the stage 2 flash for sometime now...with mods in sig.

I spike 28 psi with pill out and it tapers off to ~18-19 at redline. I have never hit the cutoff, just nice hard pull to redline everytime.

Something doesn't seem right though from you logs. I honestly would ask hollywood to look at them. If I ever have questions about my AP he is the one I would ask.

Yeah, Hollywood has been really helpful to me too.

With mine I boost to 25 then drop to 21 and redline without pill and the over boost map

Thtas NOT false knock thats real, now go buy a fuel relay and switch to an LWG map before you blow your shit up. Also did you tighten your wastegate at all?

Haven't touched the wastegate. I didn't think the 2010's had an issue with the fuel relay... I already switched to the LWG map

This looks like my problem... i even had it with the blue relay still havent figured it out... i am just running stage1 for now and avoid going WOT...

2010s are black relays, get the blue one to be safe, its like 20 bucks

After switching to Stage 2 LWG
Still have knock, but not as much and my boost is way low.
12388
12389
12390

Also, sorry for the crappy logs... I live and work in DC so trying to get time and space during the week is kinda hard to run logs at WOT lol

I'm getting ready to do this when I get my ap next week. I've found on other platforms that going catless made it much harder to hit target boost numbers consistantly. I spiked alot so this time around I went with a catted exhaust which is going on in the morning. What differences do you see with the pill in as opposed to having it out? Are there adjustment I need to make with my wastegate?

The other way you can go catless and make your boost more precise is to go external waste gate. I took my pill out once I went AP stage 2. Someone else can enlighten you on making adjustments on the internal WG.

I ran the Cobb stage 2 tune the other day and couldn't hit more than 19 psi. It was strange. I don't have the pill removed but I hit 25 psi without a problem w/ my Ivey map. Not sure how that happens.

You have the same problem as me. With the stage 2 you overboost, and with the stage 2 LWG you can't reach your boost target. BTW your knock seems much better with LWG map.

Cobb released a new version of their maps (1.06). Have you tried installing them?

Maybe its a newb question but I thought 26psi boost was normal? Ive run stage 2 complete AMS map and I will hit 26psi in 5th WOT? no boost pill, etc

26 psi is good, but 28-29 psi is over boosting. The stage 2 should be 25 psi +/- 0.8 PSI.

I only knew of the 1.06 for the LWG maps. I'll check hold up. I switched back to Stage 1 and i am still getting knock... wtf!!!

I think the 1.06 has some updates specially for the 2010 models, so it might help.

26 psi is good, but 28-29 psi is over boosting. The stage 2 should be 25 psi +/- 0.8 PSI.

cool :p

Mine was overboosting to 28.3 psi stage 2 boostpill removed, So I called Cobb and asked them about it, they said you have 3 option:
1. Change to stage 2 LWG map still no boostpill
2. Stay on reguler stage 2 and put the boostpill back
3. If you still overboosting put the boostpill back and change to LWG map! (I think you should try this option)
So I went with first option and now I hit 23.6 psi and 18 psi to the redline or higher rpm, No knock (0.7 at lower rpm sometimes) :D

Hassan what gear do you do your Logs in?

Hassan what gear do you do your Logs in?

Mostly on third gear and yesterday I have tried also fourth and fifth gear, I want to put the boostpill back and change it to reguler stage 2 to see if still works smooth..

Hassan what gear do you do your Logs in?

Logs should typically be a 3rd or 4th gear pull 2-7k rpm