Interested in ECU tune for the ISF ?
03-08-13, 02:27 PM
#31
Lexus Test Driver
03-09-13, 05:21 AM
#37
A 95 Ron octane rating is the equivalent to 92 in the US.
( RON Octane Rating x 0.95 = AKI Octane Rating )
98 RON Octane x 0.95 = 93.1 AKI Octane (US measure)
100 RON Octane x 0.95 = 95 AKI Octane (US measure)
So it's a little higher than what we have available in the US. Either way maps won't be on point so we need someone local to properly tune.
03-09-13, 07:48 PM
#41
we have been waiting a long time so waiting a little more wont hurt 
my issue is that yes u can send your ecu to them but i strongly advise against that. too many variables. is the F they are utilizing stock? just intake? just exhaust? headers? etc etc. u might get a tune for a stock isf running on 97 octane. yes youll see gains on paper but lets say your f has i/h/e i seriously doubt youll see the gains. we need the tuner hardware and car on the dyno to specifically tune for what u have. if they have 4 Fs. one stock.one with intake,one with i/e and one with i/h/e and u get to choose lets say 93 octane....id say go for it ...send out your ecu .but they dont...just my 2 cents
my issue is that yes u can send your ecu to them but i strongly advise against that. too many variables. is the F they are utilizing stock? just intake? just exhaust? headers? etc etc. u might get a tune for a stock isf running on 97 octane. yes youll see gains on paper but lets say your f has i/h/e i seriously doubt youll see the gains. we need the tuner hardware and car on the dyno to specifically tune for what u have. if they have 4 Fs. one stock.one with intake,one with i/e and one with i/h/e and u get to choose lets say 93 octane....id say go for it ...send out your ecu .but they dont...just my 2 cents
03-09-13, 07:53 PM
#42
Rookie
Join Date: Mar 2013
Location: ON
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
I guess the counter point to amgone would be if we have a wide band sensor the ecu would adjust to any higher flowing exhaust mods. I'm not sure if we have a wide band or not... A 92 octane tune works for me.
03-10-13, 08:48 PM
#44
Tech Info Resource
iTrader: (2)
It may be possible to have some serious problems if you purchase a junkyard ECM, have it flashed, and then install it. I would not want to be the guinea pig for doing it this way. The key security system is certificate based, and there is a sequence of exchanges that happen between the certification ECU and the ECM before the engine will start. Because of this, it might be necessary to have the "new" ECM installed in the car and registered with the certification ECU for the smart key to work.
I am not 100% certain, but again, I wouldn't want to find out the hard way unless I was prepared to have a Techstream security specialist on hand to make sure nothing goes wrong.
So - update - swapping ECMs (not removing and reinstalling the same unit) means you'll need to initialize the TCM, throttlebody, and write the correct VIN to the ECM. Toyota tech data is very clear this must be done with Techstream. Also, there is a procedure for initializing the ID Code ECU which is the thing generating the immobilization code to prevent theft. This procedure requires you to turn the car on without starting the engine with CG and TC pins in the DLC shorted for 30 minutes. If you don't do this, the engine won't start.
Last edited by lobuxracer; 03-10-13 at 09:28 PM.
03-11-13, 06:16 AM
#45
Rookie
Join Date: Mar 2013
Location: ON
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
Ah, good to know, thanks lobux.
Regarding the ECU swap, on the newer Genesis Coupe, they count the mileage in two places, on the dash and in the ECU. So they really have no options but to tune the ECU and leave all the dealer scannable diagnostic parameters in place so it isn't a huge red flag for warranty work. Wouldn't surprise me if our cars do the same.
Regarding the ECU swap, on the newer Genesis Coupe, they count the mileage in two places, on the dash and in the ECU. So they really have no options but to tune the ECU and leave all the dealer scannable diagnostic parameters in place so it isn't a huge red flag for warranty work. Wouldn't surprise me if our cars do the same.
