How long does the ECU record things

Z_ealot · 03-27-2013, 09:31 PM

Quote:

Originally Posted by DEpointfive0

I love you.
Thanks!

so just wondering and i know off topic, but did you end up taking it to fontana?

dP3NGU1N · 03-27-2013, 07:44 PM

Actually there was a list of cars with black boxes listed at some point wasn't there? I need to go dig for that thread because some years of the 370z started getting them.

DEpointfive0 · 03-27-2013, 07:45 PM

Quote:

Originally Posted by dP3NGU1N

Actually there was a list of cars with black boxes listed at some point wasn't there? I need to go dig for that thread because some years of the 370z started getting them.

Yeah, I remember seeing something like that...

dP3NGU1N · 03-27-2013, 07:47 PM

God our search function is so sick. Why people don't use it, I'll never understand.

Everything You Need To Know About The Black Boxes Coming To Your Next Car

nmjaxx9 · 03-27-2013, 10:56 PM

Quote:

Originally Posted by dP3NGU1N

God our search function is so sick. Why people don't use it, I'll never understand.

Everything You Need To Know About The Black Boxes Coming To Your Next Car

the search function is the best part of this forum. So much interesting info.

dP3NGU1N · 03-27-2013, 07:48 PM

gadjamit, Seems like only 13+ has black boxes.... that's me

DEpointfive0 · 03-27-2013, 07:51 PM

Quote:

Originally Posted by dP3NGU1N

gadjamit, Seems like only 13+ has black boxes.... that's me

BUT Fishey says that the airbags have an EDR system

Again, I'm just looking for... Does my dealership know that my retard friend put the car in neutral?

forza370z · 03-27-2013, 08:05 PM

Quote:

Originally Posted by dP3NGU1N

God our search function is so sick. Why people don't use it, I'll never understand.

Everything You Need To Know About The Black Boxes Coming To Your Next Car

Good stuff. Search function FTW!

Quote:

Originally Posted by dP3NGU1N

gadjamit, Seems like only 13+ has black boxes.... that's me

You only can hope the black box would function like our RevA-RevC steering lock unit.

Haboob · 03-27-2013, 10:17 PM

Removing the negative battery for a bit doesn't reset the ECU on this car?

DEpointfive0 · 03-28-2013, 01:25 AM

Quote:

Originally Posted by Z_ealot

so just wondering and i know off topic, but did you end up taking it to fontana?

No, because sweet jaybee Heezus it's far. And I'm going back to TX on Monday, so if I got a loaner, I wouldn't be able to bring their car back.

Quote:

Originally Posted by MR.nismo

The dealer can do it. Just stop by and ask to clear it. Or autozone/Advance sometimes can clear them and is free.

Quote:

Originally Posted by Haboob

Removing the negative battery for a bit doesn't reset the ECU on this car?

I believe both of you are thinking I have a check engine light.
What I was told by Mr. Dealershitguy was "yeah, your car always keeps track of any codes thrown even though it doesn't give you a check engine light" (this was in regards to my starting issue/starting on 4 cylinders)
I am talking more about a black box-ish thing. I know my 2009 doesn't have a proper one, but I was thinking it had a second ECU or storage for internal codes.

Haboob · 03-28-2013, 09:00 AM

Well, I know it'd clear a CEL, but I thought (and am apparently wrong, I'm not a mechanic lol) that it'd reset the ECU completely.

Jordo! · 03-28-2013, 10:45 AM

A $25 OBDII reader will clear pending codes, so that should take care of it.

If the ECU records a log of when it was accessed and cleared it's news to me.

That said, you shouldn't have anything screwed up with shifter actuation/gear selection just from having it Neutral... I'd clear the code, put the OEM shift knob back on, and see what happens. If it starts doing it again, take it to Nissan to investigate.

CDepp · 03-28-2013, 12:52 PM

Quote:

Originally Posted by DEpointfive0

So... I have to take my car in for a lot of issues. A big one being transmission problems...
The service manager said "we'll run the tests and see if the car has thrown any internal codes. These are codes that don't necessarily throw a check engine light, but they are stored in the ECU"

Here's the issue... (I have an aftermarket shift knob)

I let my friend drive my car, (he THINKS he knows the way I drive and tries to replicate it) but when he brought it back he said "hey, I popped your car into neutral and it said reverse although the shifter was in N"...
"Why the fück would you shift into N? Leave it in drive... You fücked up, it's not the car"

A few days later... Like a JACKASS, he does it again... And again, "WHY THE FÜCK ARE YOU DOING THAT??? You're ******* up, you're popping it too far forward"
So I tell him to show me, we go on a drive, pops it forward... It goes into R... And the car almost tried to engage this time (going 15MPH) but I put it back into N quickly...

So would a shift error like this be stored (I assume yes) but for how long/how can I delete it?

I don't believe shifts are recorded, but generally the EDR will hold 30-60 seconds of data and continually overwrite as long as the car is running. Some get junked up and stop overwriting and will try to add logs to a full memory (very very rare occasion)

From my knowledge, they record date, time, vehicle speed, RPMs, throttle position, steering angle, seatbelts (the signal and passengers), cruise control engagement, braking status and pedal position, and if any airbags deployed.

03-28-2013, 10:45 AM	#12 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 420	A $25 OBDII reader will clear pending codes, so that should take care of it. If the ECU records a log of when it was accessed and cleared it's news to me. That said, you shouldn't have anything screwed up with shifter actuation/gear selection just from having it Neutral... I'd clear the code, put the OEM shift knob back on, and see what happens. If it starts doing it again, take it to Nissan to investigate. __________________ Enjoy it. Destroy it.

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03-27-2013, 07:44 PM	#2 (permalink)
dP3NGU1N A True Z Fanatic Join Date: Feb 2011 Location: Irvine Posts: 1,682 Drives: 13 PW sport 6mt Rep Power: 20	Actually there was a list of cars with black boxes listed at some point wasn't there? I need to go dig for that thread because some years of the 370z started getting them.

03-27-2013, 07:47 PM	#4 (permalink)
dP3NGU1N A True Z Fanatic Join Date: Feb 2011 Location: Irvine Posts: 1,682 Drives: 13 PW sport 6mt Rep Power: 20	God our search function is so sick. Why people don't use it, I'll never understand. Everything You Need To Know About The Black Boxes Coming To Your Next Car

03-27-2013, 07:48 PM	#6 (permalink)
dP3NGU1N A True Z Fanatic Join Date: Feb 2011 Location: Irvine Posts: 1,682 Drives: 13 PW sport 6mt Rep Power: 20	gadjamit, Seems like only 13+ has black boxes.... that's me

03-27-2013, 10:17 PM	#9 (permalink)
Haboob A True Z Fanatic Join Date: Aug 2012 Location: Surface of the sun. Posts: 13,159 Drives: '18 GTI Autobahn DSG Rep Power: 1388	Removing the negative battery for a bit doesn't reset the ECU on this car?

03-28-2013, 09:00 AM	#11 (permalink)
Haboob A True Z Fanatic Join Date: Aug 2012 Location: Surface of the sun. Posts: 13,159 Drives: '18 GTI Autobahn DSG Rep Power: 1388	Well, I know it'd clear a CEL, but I thought (and am apparently wrong, I'm not a mechanic lol) that it'd reset the ECU completely.