There is no such thing as reflash for CFE engine... it has been confirm over their website. it is just reset settings and relearn throttlebody

nice, at least proton is listening... People keep calling it reflashing hahahaha... i also thought they actually re-flash the ecu... hehehhe

Tq bro.. 70 is good enuf aldy i guess.. any other owner wanna comment?

It is not easy to reflash, and actually they had the tools to reflash (Proton RnD group had it) but it is pointless to reflash back the same mapping. what can you improve the mapping? only 2 things i can see.... AFR basically maintain safe not too rich and not too lean, Ignition settings (which is the most important) others than that only left is BOOST IT HIGHER lols....

hw run can go for 550km for RM90

don be fooled

maybe your friend drive 180km/h

can i look for u for modding..hehe

his car leaks.

can... no problem as all stuff is plug n play....

Proton policy says "as long as the original parts can put back without need to rework"

Sifu Steven, I got question lar. If we reset setting and throttle body, possible to let it adapt to our driving style?

actually there is no adaptation of driving style or vice versa, all is just a fairy tales. The car normally will just learn the idling steps and AFR close loop learning to gain more efficiency. Auto tranny will also not learn the driving style but it will learn and auto program total load traction system.

What is open loop or close loop? not shoo Bee Da Loop...
Open Loop and Closed Loop are two terms used to describe the fueling mode the computer is in.

In closed loop fueling, the computer takes readings from the oxygen sensors which read +/- of 14.64 AFR (Stoich) and makes corrections for it. If your car is idling @ 13.5 AFR, the 02s can see this, and will know to pull out enough fuel to get back to stoich.

In open loop, the fueling is purely based off the MAP/MAF transfer function and the open loop fuel table. This table has to be calibrated any time you make MAP/MAF changes, and changes that affect the airflow/pressure of the MAP/MAF.

When a car is started, the computer is in open loop until certain criteria is met. The o2 sensors need to be heated to work properly, so this is the main reason there is a delay.

After the sensors are heated up, the car goes into closed loop and the O2 sensors make their corrections.

The computer will go back into open loop under a variety of conditions. Throttle Position (TP) is one way.

There are parameters in the computer that determine what the TP is for Open Loop, and other things.

When that TP is reached, and the car goes open loop, and richens up.

good infos on technical thing, steven...

Thaks.... but also i wanna to let u guy knows that if you remove your car thermostat it is also bad because when the temp reach below 85c it will goes to warm up mapping... depends... certain car is below 75c.

How Thermostat function;

Any liquid-cooled car engine has a small device called the thermostat that sits between the engine and the radiator. The thermostat in most cars is about 5 cm in diameter. Its job is to block the flow of coolant to the radiator until the engine has warmed up. When the engine is cold, no coolant flows through the engine. Once the engine reaches its operating temperature 95c, the thermostat opens. By letting the engine warm up as quickly as possible, the thermostat reduces engine wear, deposits and emissions.
If you ever have the chance to test one, a thermostat is an amazing thing to watch because what they do seems impossible. You can put one in a pot of boiling water must be on the stove. As it heats up, its valve opens about an inch, apparently by magic! (petaling street magic) If you'd like to try this yourself, go to any halfcut shop and get 1 or remove it from your car.
The secret of the thermostat lies in the small cylinder located on the engine-side of the device. This cylinder is filled with a wax that begins to melt at perhaps 80c (different thermostats open at different temperatures, but 82c is a common temperature). A rod connected to the valve presses into this wax. When the wax melts, it expands significantly and pushes the rod out of the cylinder, opening the valve. Smart design eh!

stevem,

is this applies only for cfe engines or most cars?

mostly on all cars engine

Here is some sample on engine ecu mappings, there is open loop parameters, high and low octane fuel maps and ignition maps... so dont need to waste your money to fuel V-power or anything just to gain tiny effects.

Thank you.. Nice information for sharing

wow...so technical...respect...now i need digest n google what it means...

No Problem, as we should share all this information to reduce hoax or misleading information.

I have even seen the best part, Proton SC just clears one of the Preve diagnostic codes and the owner claims that it had been reflashed and the power gain at least 25%...

The process of reflash is unique and it is not plug and play. The most common reflash i have seen is inspira because inspira is easy to reflash and alter the map settings however to custom a rom will kill a lot of brain cells. Now i have retired doing reflashing... let the memories become history and someday might become a fairy tales.

mxsteven, when your EB coming? Or you already have the new map for EB ECU?

My EB maybe not coming.... coz someone screwed up my loan suddenly kena blacklist temporary. Maybe next year only get since so many things screwed up recently.

have to own the car only can start the development.