How long does the ECU record things

DEpointfive0 · 03-24-2013, 11:58 AM

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?

Wonka2581 · 03-24-2013, 12:56 PM

I did the same sh** with mine the other day by accident it made a clicking sound car shuttered but everything seemed fine,

Sway · 03-24-2013, 03:52 PM

I know this doesn't help answer your question... but why the hell did you keep letting him drive your car???

DEpointfive0 · 03-24-2013, 03:54 PM

Quote:

Originally Posted by Sway

I know this doesn't help answer your question... but why the hell did you keep letting him drive your car???

Wellllll... I had to put gas in both cars, so It was easier to have him drive a car, and the second time I had to pick up the 370Z from work...

kenchan · 03-24-2013, 04:07 PM

dang that aftermarket shift knob will definitely show up in the ECU's history...

Dsevast · 03-24-2013, 04:55 PM

Don't automatic cars have a fail safe so you can only shift to neutral unless you press the button in? Then pressing the button lets you shift to reverse or park??

DEpointfive0 · 03-24-2013, 05:13 PM

Quote:

Originally Posted by Dsevast

Don't automatic cars have a fail safe so you can only shift to neutral unless you press the button in? Then pressing the button lets you shift to reverse or park??

They have a few.
They normall don't let you shift into reverse unless pressing the button... (Mine is finicky) and if you're going over a certain speed, it doesn't even try to engage reverse or park

I just am wondering how long that error (if there is one at all) stays in the system for because i'm taking my car into the dealershit for transmission problems. And I don't want them to think I break it on purpose my trying to jam it into reverse while moving forward

SouthArk370Z · 03-24-2013, 06:06 PM

Quote:

Originally Posted by DEpointfive0

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

Don't know if that would show up as an error but permanent error codes stay in memory until you clear them. Any good OBD scanner should be able to read/clear them for you. IIRC, there is some data that is stored in "WORM" (write-once, read-many) memory and can't be cleared (I may have see that on the Wikipedia OBD page).

DEpointfive0 · 03-24-2013, 06:15 PM

Quote:

Originally Posted by SouthArk370Z

Don't know if that would show up as an error but permanent error codes stay in memory until you clear them. Any good OBD scanner should be able to read/clear them for you. IIRC, there is some data that is stored in "WORM" (write-once, read-many) memory and can't be cleared (I may have see that on the Wikipedia OBD page).

Yeahhhhhh... Dammit, I'm afraid it would be in something like a WORM system... FML...
I was thinking maybe it only has the capability to keep crap for like 1000 miles or something....

At the same time, our cars don't have the same black box that the GTRs have that can inform Nissan of your launch control launches and if you've taken the car to a track

MR.nismo · 03-27-2013, 07:40 PM

Codes and no codes (hard or soft) can be stored indefinitely until they get cleared. Today's cars can even tell in case of an accident how fast it was going, if the ABS was activated before the impact and stuff like steering input and so on. That's how investigators can tell alot from accidents when there is no witnesses,they pull the info from the vehicle.

DEpointfive0 · 03-27-2013, 07:43 PM

Quote:

Originally Posted by MR.nismo

Codes and no codes (hard or soft) can be stored indefinitely until they get cleared. Today's cars can even tell in case of an accident how fast it was going, if the ABS was activated before the impact and stuff like steering input and so on. That's how investigators can tell alot from accidents when there is no witnesses,they pull the info from the vehicle.

Ok, well... I'm 90% sure out car doesn't have the black box to record all that info... And the question is how can I clear it?

MR.nismo · 03-27-2013, 10:08 PM

Quote:

Originally Posted by DEpointfive0

Ok, well... I'm 90% sure out car doesn't have the black box to record all that info... And the question is how can I clear it?

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

Wonka2581 · 03-27-2013, 10:49 PM

Quote:

Originally Posted by DEpointfive0

Ok, well... I'm 90% sure out car doesn't have the black box to record all that info... And the question is how can I clear it?

All of our cars have a black box or (airbag secsor) that is always recording, Text me and ill give you the info on it...

DEpointfive0 · 03-27-2013, 08:03 PM

Quote:

Originally Posted by Baer383

They can only do that if the car is equipped with a black box and the 370 doesn't have one.

I love you.
Thanks!

Baer383 · 03-27-2013, 08:07 PM

Quote:

Originally Posted by DEpointfive0

I love you.
Thanks!

They have one for crash info starting production date after 8/12 but it isn't a big deal if you have one or not.

03-24-2013, 11:58 AM	#1 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	How long does the ECU record things 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? __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide )** NSFW due to language:

03-24-2013, 12:56 PM	#2 (permalink)
Wonka2581 A True Z Fanatic Join Date: Nov 2012 Location: Chattanooga, TN Posts: 3,083 Drives: MY WIFE CRAZY.... Rep Power: 2611	I did the same sh** with mine the other day by accident it made a clicking sound car shuttered but everything seemed fine, __________________ "I have nothing to offer but blood, toil, tears and sweat""Winston Churchill"

03-24-2013, 03:52 PM	#3 (permalink)
Sway Track Member Join Date: Sep 2012 Location: TX Posts: 697 Drives: 2018 GTR Rep Power: 37870	I know this doesn't help answer your question... but why the hell did you keep letting him drive your car??? kfull likes this. __________________ - White 2018 GTR FBO+E85 - Check out my old build thread: Sway’s Journal-Hitomi ~Live and let live!~

03-24-2013, 04:07 PM	#5 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	dang that aftermarket shift knob will definitely show up in the ECU's history... Eagle likes this.

03-24-2013, 04:55 PM	#6 (permalink)
Dsevast Base Member Join Date: May 2011 Location: Cleveland Ohio Age: 38 Posts: 208 Drives: 2011 Nissan 370z Rep Power: 14	Don't automatic cars have a fail safe so you can only shift to neutral unless you press the button in? Then pressing the button lets you shift to reverse or park?? __________________ 2011 PW 6MT, Fast Intentions CBE, Fast Intentions RHFC's, Stillen Gen 3's, Uprev, Whiteline sways, 24 Row Oil cooler

03-27-2013, 07:40 PM	#10 (permalink)
MR.nismo Enthusiast Member Join Date: Nov 2011 Location: Hackensack, NJ Age: 50 Posts: 373 Drives: 2014 Nismo Gun Metal Rep Power: 13	Codes and no codes (hard or soft) can be stored indefinitely until they get cleared. Today's cars can even tell in case of an accident how fast it was going, if the ABS was activated before the impact and stuff like steering input and so on. That's how investigators can tell alot from accidents when there is no witnesses,they pull the info from the vehicle. __________________ Sarcasm and Orgasm are about the same thing. One is good....the other is better.

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