Reflash using a Nissan scanner ?!?

xav_350z · 07-10-2008, 01:28 AM

a friend of mine took his 2005 Z to nissan to install his Popcharger and test pipes...
The guy there told him that he can raflash his ECU using a scanner they have...

Took him like 5 min without even driving the car, and my friend told me that he did feel the diff...

Is it possible to tune ur Stock ECU using a scanner ? i mean its a diagnostic tool...

what do you guys think ?

Cheers!

C5TT · 07-10-2008, 04:22 AM

He probably advanced the timing a couple of degrees, that you can do!!!!!!!!!!! but i dont know of anything else. my tech did that to mine with the consult II, but i have to run 93 octane, otherwise the computer would retard the timing back(knock sensor you know). you do feel the difference though.

xav_350z · 07-10-2008, 05:45 AM

^ exactly , thats most probably what he did...
btw if u reset ur ECU u'll loose the reflash....

twitch579 · 07-12-2008, 07:11 PM

If u advance your timing 2 degrees then reset the ECU it goes back???

__jb · 07-12-2008, 10:05 PM

Quote:

Originally Posted by xav_350z

^ exactly , thats most probably what he did...
btw if u reset ur ECU u'll loose the reflash....

Resetting the ECU doesn't change the settings the ECU was flashed to.

twitch579 · 07-13-2008, 06:28 AM

Sooo anytime u make any ECU changes wether it be idle speed or timing advances with either a Consult or Cipher u are actually flashing the ECU?

If the ECU needs to be flashed that leads me to believe that its a EEPROM sorta like a bios chip on a motherboard for a computer. Pulling the power on the chip for however long will not change its program.

Or pulling the power on it could could erase and changed settings is my other guess.

pmohr · 07-13-2008, 06:47 AM

Quote:

Originally Posted by twitch579

Sooo anytime u make any ECU changes wether it be idle speed or timing advances with either a Consult or Cipher u are actually flashing the ECU?

If the ECU needs to be flashed that leads me to believe that its a EEPROM sorta like a bios chip on a motherboard for a computer. Pulling the power on the chip for however long will not change its program.

Or pulling the power on it could could erase and changed settings is my other guess.

I wouldn't really call it a reflash as all you're doing is changing a few base parameters (idle speed, ign timing, etc). Technically it could be considered a 'reflash', but most wouldn't.

For the OP's story there could've been an updated ECM program out for his car, but you can't really do much at all with the CONSULT-II beyond diagnostics (spent almost a whole day playing around with the thing back when I first started working at Nissan). Certainly no tuning performance-wise.

And correct, any changes you make to the ECM will not be lost if it loses power. Think of it as a flash drive of sorts.

jining · 07-17-2008, 12:49 AM

+1 he probably did the idle air volume learning or something

Maybe there was an ECM reflash like pmohr suggested but I dont recall one for the 350z I work @ nissan too... woooo

07-10-2008, 01:28 AM	#1
xav_350z Registered User Join Date: Apr 2006 Location: Lebanon Posts: 350 iTrader: (3)	Reflash using a Nissan scanner ?!? a friend of mine took his 2005 Z to nissan to install his Popcharger and test pipes... The guy there told him that he can raflash his ECU using a scanner they have... Took him like 5 min without even driving the car, and my friend told me that he did feel the diff... Is it possible to tune ur Stock ECU using a scanner ? i mean its a diagnostic tool... what do you guys think ? Cheers! __________________ Vortech S/C wiz 3.0 pulley -UTEC - tanabe GF210 springs - B&M short shifter - HKS Hi-Power True Dual Ti Exhaust - Crawford HFC - JWT Flywheel - NISMO Clutch - Nismo brake Pads - Nismo shift knob - Nismo thermostat - MD 5/16 plenum spacer - 18' SSR D5R wheels - Varis Airduct - K&N air filter Snow performance WI kit - Zeitronix Wideband

07-10-2008, 05:45 AM	#3
xav_350z Registered User Join Date: Apr 2006 Location: Lebanon Posts: 350 iTrader: (3)	^ exactly , thats most probably what he did... btw if u reset ur ECU u'll loose the reflash.... __________________ Vortech S/C wiz 3.0 pulley -UTEC - tanabe GF210 springs - B&M short shifter - HKS Hi-Power True Dual Ti Exhaust - Crawford HFC - JWT Flywheel - NISMO Clutch - Nismo brake Pads - Nismo shift knob - Nismo thermostat - MD 5/16 plenum spacer - 18' SSR D5R wheels - Varis Airduct - K&N air filter Snow performance WI kit - Zeitronix Wideband

07-12-2008, 07:11 PM	#4
twitch579 Registered User Join Date: Apr 2007 Location: Florida Posts: 526 iTrader: (3)	If u advance your timing 2 degrees then reset the ECU it goes back??? __________________ 2004.5 Enth. Black/Black 6Mt. V2 Engine, 009 Tranny, Eibach Sportline Springs- X02 exhaust, Motordyne 5/16, Sportmax 962's, JWT Pop-Charger, Resonated Test-Pipes, Uprev Osiris, 4.08 Gears.

07-13-2008, 06:28 AM	#6
twitch579 Registered User Join Date: Apr 2007 Location: Florida Posts: 526 iTrader: (3)	Sooo anytime u make any ECU changes wether it be idle speed or timing advances with either a Consult or Cipher u are actually flashing the ECU? If the ECU needs to be flashed that leads me to believe that its a EEPROM sorta like a bios chip on a motherboard for a computer. Pulling the power on the chip for however long will not change its program. Or pulling the power on it could could erase and changed settings is my other guess. __________________ 2004.5 Enth. Black/Black 6Mt. V2 Engine, 009 Tranny, Eibach Sportline Springs- X02 exhaust, Motordyne 5/16, Sportmax 962's, JWT Pop-Charger, Resonated Test-Pipes, Uprev Osiris, 4.08 Gears.

07-17-2008, 12:49 AM	#8
jining Registered User Join Date: Jun 2007 Location: Lynnwood,WA Posts: 1,251 iTrader: (5)	+1 he probably did the idle air volume learning or something Maybe there was an ECM reflash like pmohr suggested but I dont recall one for the 350z I work @ nissan too... woooo __________________ [ 2003 G35TT 6MT OB Coupe ] - APS Twin Turbos + APS Downpipes + APS Exhaust + CJM Stage 2 + Meth Injection [

07-10-2008, 04:22 AM	#2
C5TT Registered User Join Date: Apr 2005 Location: PEMBROKE PINES Posts: 115 iTrader: (10)	He probably advanced the timing a couple of degrees, that you can do!!!!!!!!!!! but i dont know of anything else. my tech did that to mine with the consult II, but i have to run 93 octane, otherwise the computer would retard the timing back(knock sensor you know). you do feel the difference though.