This is some experiment based on experience usage to improve car overall performance. Perodua car particularly the older alza 2010 having some minor under performance. For example there is a delay in accelerations pickup and the engine getting rough over time - most of us will think that there are something wrong with the car after years of using for example delay initial acceleration may leads you to think it's gearbox have worn-out or something wrong with the components inside or maybe dirty ATF fluid.
Some light bulbs especially the small fog light getting dimmer - that make you think it is the wiring problem or maybe the bulbs.
| Addition / Modification | Improvement |
|---|---|
| Adding more grounding wires - The thicker the wire the better | 1. Smooth auto-transmission 2. Smooth engine on idle 3. Lightings more brighter 4. Good radio signal receptions |
| Adding additional air intake from PCV | 1. Better pickup |
| Improved air filter box - making it more air tight | 1. Improved acceleration pickup and reduce delay in accelerations |
| Add additional fan in front of aircond condenser | Improved air conditioning cooling faster |
| Weak braking system - taking extra distance to get it stop | This is sometimes due to: 1. Vacuum leak - due to old vacuum hose (cracked / loose) - tighten hose or change new one 2. Air inside the brake line - bleed air |
| Change Automatic Transmission Fluid (ATF) on time | Not only it improve to smooth automatic transmission transition but also improve fuel economy as the engine taking less load to spin the transmission. This is tested on OBD2 data when new changing new ATF fluid the fuel flow rate reduce by 0.5 ml/min - this maybe small but when it adds up it can be a big difference. |
| Change Engine Oil on time | To protect the engines as well as improve fuel economy. Dirty engine oil can increase the load of the car as the lubricant is less as a result more fuel is used to run the engine. |
| Adding magnet | It seems there is a significant improvement when putting magnet to the engine oil filter and ATF transmission fluid pan. Overtime it captures all the tiny engine/transmission wear and tear debris and prevent it to recirculate back into the engine and transmission. It makes the engine lighter and easier to shift the gears as the fluid that runs are free from metal debris. As a result the lubrication process are more effective and making less frictions within the engine and transmission. Therefore it increases fuel economy. This is proven from the OBD2 data on idle after 10 years the car runs at 26ml/min when run with air conditioner on. After almost 1 month putting strong neodymium magnet on the engine oil filter and the ATF pan it reduces fuel consumption to 23ml/min. That's very little if you count it per min...but when you adds up per hour or per 10 hours that's a lot of saving. So magnet definitely works. |
| Check and service crankshaft and camshaft position sensors | The very fundamental of engines stability, smoothness lies in its perfect timing which the data captured by both the crankshaft and camshaft position sensors. The timing is perfect fuel injectors, spark plugs, air intake all deliver combustions at the right time and thus the result can be monitored through the oxygen sensor graph. When the timing is near perfect everything will calm down...as a result the car will be quiet, smooth, and fuel efficient. It does not need a lot of fuels to carry its weight. Because of the nature crankshaft and camshaft position sensors are magnetic - it collecting engines wear metal dust on its surface thus reduce the effective to deliver accurate data to the ECU about the car timing. Therefore maintenance to clean those metal debris should be perform to keep it function at their optimum capacity. Apart from that aging and heat also wears out the magnetic element of the sensors - therefore testing the resistance of the sensors is necessary to check if it still within the technical specifications of the manufacturer. |
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