Tweaking the ECU ?
-
Hi i am driving the nissan sunny 2001 model..
i seen from many web that tweaking the ECU and improve the perofrmance..
Anyone done it before?
Where to plug in from the laptop? -
underneth your steering wheel 'neck' there is a data port, you can use the OEM Computer or you can use 'Master ECU' to tweak, best is for you to ask expert to do it, i would suggest Unichip, tested and proven
-
What is unichip? whrere?
-
Unichip is a piggybacks for piggybacking onto your factory ECU..... The factory ECU that comes with the car are mostly very difficult, or impossible to tune. Installing piggybacks such as the Unichip, SAFC, will enable the tuner to over-ride the factory ECU, to optimise the settings for your car.
But still nothing beats a total replacement of the factory ECU, with chips such as the Microtech LT8 ,..... BUt itz gonna cost....Originally posted by letstwistagain:What is unichip? whrere? -
wad is ECU for?
-
It is the so-called brains or computer in your car, that controls the essential air-fuel ratio, ignition timings, etc.
Factory setted ECU tends to be on the conservative side, and hence an ECU upgrade with proper tuning will take care of that =)Originally posted by TwinTurbo_Supra:wad is ECU for? -
so ECUs affect ur car's FC?Originally posted by GLX:It is the so-called brains or computer in your car, that controls the essential air-fuel ratio, ignition timings, etc.
Factory setted ECU tends to be on the conservative side, and hence an ECU upgrade with proper tuning will take care of that =) -
As i said , it is the brain that controls all the essential functions and parameters in your propulsion system.
It can affect the FC , depending on the tuning... Generally people go for upgrades and tuning to optimise their horsepower or torque.Originally posted by TwinTurbo_Supra:so ECUs affect ur car's FC? -
yea and if i'm not wrong it is the mother of performance modifications. btw what is the approximate cost of such?
-
To GLX, hi bro, do you have experience with any after market ecu? either piggyback or standalone?
-
hi there..maybe it would be good if you can do a intro on your ride?Originally posted by sheltie2306:To GLX, hi bro, do you have experience with any after market ecu? either piggyback or standalone?
I currently have a SAFC Gen 1 on my ride and it was dyno tuned. I would say that the improvement for both performance and FC have improved quite abit. But then again, my car is old thus maybe allowing more room for the piggyback to improve on it.
However, i have seen the SAFC on various other cars. For example, the 92 Honda city 1.5 Vtec...with good tuning it really does bring out more from your engine.
some cars, however, I heard the technology of ECU nowadays have improved to a point whereby they are able to offset any piggyback settings. I do not know this for sure but these are some examples.
For Subarus TS and Rexes, i heard that within a month or so the ECU will have fully offset any SAFC settings. Thus for the SAFC to continue working, you would have to reset your ECU ideally, every week.
And reading from the Vios forum. The members there think that the SAFC Gen 1 does not work well on their car and only the SAFC Gen 2 works well.
Lastly, a humble opinion. every car was designed for a particular market and has its own limits so dont expect TOO much of a performance improvement should your car not be designed so. -
-
thousands? wah..so ex.
agreed on the part that NA cars unable to unleash more than 10%...but i wasnt looking for performance boost...just a smoother ride.
petrol now so ex...i went to tune today to go for less performance and more fuel saving.
end up my car now can hardly accelerate. but if i can get 13 or 14km/l out of this settings...i dont mind being slow..hee hee...
but if cannot then i willtune it back..i got record the old settings. -
I am on a Cedia GDI !
Great to hear that the SAFC 1 had done wonders for you. You've mounted the ITC as well? Actually, I do believe in the performance boost from such products and upgrades. . however, the GDI engine's ECU belongs in the same category of TS and Rexes, as you've mentioned on the resetting effects.
The ECU seems to be much smarter (shld say stubborn) and refuses to be over-ridden by a piggie. Seems that there's some safety feature such that when the ECU sesnes abnormalities in fuel ratio, air mapping , etc. it automatically resets itself to factory settings.... Sadz...
So just as what you've said, every car that comes out of the factory is meant for a certain limit, hence, i guess, i will just keep to it ....Originally posted by jiayong:hi there..maybe it would be good if you can do a intro on your ride?
I currently have a SAFC Gen 1 on my ride and it was dyno tuned. I would say that the improvement for both performance and FC have improved quite abit. But then again, my car is old thus maybe allowing more room for the piggyback to improve on it.
However, i have seen the SAFC on various other cars. For example, the 92 Honda city 1.5 Vtec...with good tuning it really does bring out more from your engine.
some cars, however, I heard the technology of ECU nowadays have improved to a point whereby they are able to offset any piggyback settings. I do not know this for sure but these are some examples.
For Subarus TS and Rexes, i heard that within a month or so the ECU will have fully offset any SAFC settings. Thus for the SAFC to continue working, you would have to reset your ECU ideally, every week.
And reading from the Vios forum. The members there think that the SAFC Gen 1 does not work well on their car and only the SAFC Gen 2 works well.
Lastly, a humble opinion. every car was designed for a particular market and has its own limits so dont expect TOO much of a performance improvement should your car not be designed so.