Datalog help...

[Flapjack]

In all seriousness, you're worrying over nothing.

+1

You're back to stock. Some det is normal. I'd be willing to bet there is quite a bit of tolerance between one knock sensor to the next as well.

I would do some reading up on how knock sensors work, as well as talk to a decent tuner to get some "piece of mind". I think you're worried for nothing, but until you understand it, you may not be able to stop worrying (been there, done that).

Simple explanation on knock sensors:
http://www.engineblox.com/?p=65

Super complex datasheet with description of operation:
http://www.intersil.com/data/fn/fn3601.pdf

 

[JAJ]

It's going to explode, you best go trade it in immediately.

In all seriousness, you're worrying over nothing.

With aftermarket tunes, you have to know what sensors are still active and which ones are turned off, and most, if not all, tuners won't tell you that. The only thing you can really count on is the reputation of the tuner and the company they work for.

As for the knock sensor, it's part of a feedback loop in the stock ECU tune that figures out what gas you're running. The timing hunts toward more aggressive levels until there's a knock, and then it backs off a bit. This cycle never stops. This gets the most performance out of your engine and it explains how the Coyote actually produces more power from higher octane fuel.

 

[JAJ]

...Super complex datasheet with description of operation:
http://www.intersil.com/data/fn/fn3601.pdf

Thanks for posting that link. Interesting reading. When you see the "small signal" like 0.3 or 0.4 on the KS PID, you're seeing the raw voltage output of a device like the one in the data sheet. When you're seeing 0, -.5, -1, etc, you're seeing the timing adjustment the ECU has made based on that signal.

 

[Seer]

With aftermarket tunes, you have to know what sensors are still active and which ones are turned off, and most, if not all, tuners won't tell you that. The only thing you can really count on is the reputation of the tuner and the company they work for.

As for the knock sensor, it's part of a feedback loop in the stock ECU tune that figures out what gas you're running. The timing hunts toward more aggressive levels until there's a knock, and then it backs off a bit. This cycle never stops. This gets the most performance out of your engine and it explains how the Coyote actually produces more power from higher octane fuel.

yep, all he is doing is catching his knock sensors at working, pulling and and advancing timing based upon internal and external events.

 

[gtmiller1001]

Since no one has said it yet, I logged my car when stock, on 93 octane.

It had timing being pulled by the knock sensors all over the place. You're fine.

 

[DSargent09]

Since no one has said it yet, I logged my car when stock, on 93 octane.

It had timing being pulled by the knock sensors all over the place. You're fine.

Holy hell thnk you +1000 as I sit here and seal the deal on a 2013

 

[DSargent09]

Only reason I'm carrying through on the deal is because I'm making money lol. Getting 27.5 for a car I paid 27..

 

[Scott_0]

Since no one has said it yet, I logged my car when stock, on 93 octane.

It had timing being pulled by the knock sensors all over the place. You're fine.

QFT its why these cars have KS, in a perfect world we wouldnt need KS but as we all know this isnt a perfect world, so the KS are simply doing as they were designed

 

[DSargent09]

The girls

http://s1260.photobucket.com/albums/ii580/dsargent09/The Girls/

 

[Scott_0]

youre buying the white one? nice? dont go trading it in too when you data log knock with it too lol

 

[DSargent09]

youre buying the white one? nice? dont go trading it in too when you data log knock with it too lol

Lol fu!! I bought the white one. Peace of mind is a valuable thing. It will stay stock. Only cosmetic mods

 

[cgibs89]

Another reason I continue to wait for the tuning knowledge to mature and for people to fully understand what's going on in these Coyote PCMs.

 

[Seer]

Another reason I continue to wait for the tuning knowledge to mature and for people to fully understand what's going on in these Coyote PCMs.

it has matured, just need to go to the right tuner

 

[wbt]

it has matured, just need to go to the right tuner

+1

 

[guilloe]

Who are the right tuners

 

[burke985]

Who are the right tuners

Steeda

 

[burke985]

Had my car dynoed with my 93 octane tune from Steeda and the car made 390rwhp @6800 RPM on a hot and humid day 90 degrees with 99% humidity , and he did not even pull it to the rev limiter @7300. The knock sensors activated for a second but he assured me that that was actually a good thing it proves that steeda did not mess with them and it was probably a result from the gas i was using and they were just doing their job. The guy is a respected tuner in my area and tunes for a lot of companies including SCT. I wouldnt worry about that one bit, my car runs strong all the time.