✔️ Carburetor engine adjustment
In short, in carburetor engines, two factors, AFR and spark timing, play the most fundamental role in adjusting and working health of the engine. As a result, the mechanic, using the air flow meter, vacuum gauge and Delco light, tries to set the AFR coefficient and the timing of the spark system (Delco) by adjusting the fuel supply screws from the carburetor in such a way that the maximum amount of vacuum and the maximum flow of air at least provided on one of these two devices.
The mechanic may inspect and replace the vehicle's wires and spark plugs in order to achieve the ideal Delco system adjustment. It is also possible to open, service, wash or change the internal injection system of the carburetor (needles and jigglers) as well.
✔️ Adjust the injector motor
Injected cars, due to being equipped with a computer, usually (in today's modern versions) have different sensors such as the intake air volume sensor (MAF sensor), vacuum sensor (MAP sensor), oxygen sensor, crankshaft and crankshaft position sensor. And... they are equipped. Therefore, the information received from them is extracted with the help of a diagnostic device and through the OBD port, and after making computer changes (with a smartphone or laptop), it is finally confirmed on the dyno device if needed. As a result, there is no need to use a vacuum gauge, air flow meter and Delco light in adjusting these types of engines.
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The setting of engines equipped with supercharger system (turbocharger or supercharger), both in carburetor and injector type, is very close to the model without supercharger. With the difference that in the setting of the engines with high intake system, it is necessary to change the AFR coefficient and the ignition time (spark), but this change must be done by an experienced mechanic, because otherwise it can have very serious consequences. Also, due to the presence of high-pressure inlet air system, the information obtained from air flow meter and vacuum gauge will be associated with relative disturbance. Therefore, the mechanic should pay much more attention and time in the field of setting the AFR coefficient and especially the spark timing.
✔️ Costume engine adjustment
Custom engine refers to an engine that deviates from the manufacturer's standard as a result of repairs or technical upgrades. During major repairs, many engines use different valves, flat pistons or sugar heads, different or upgraded fuel injection system, aftermarket ignition system, multi-fuel system, etc., which are not standardly used in that car engine. It is also possible that the engine in question is a completely engineered engine, consisting of a collection of assembled components and tools that defies basic engineering calculations and looks more like a closed watermelon.
This engine is independent of being mechanical or computerized (carburetor or injector), it can be tuned up with the help of basic equipment such as vacuum gauge, delco light and diag device. But if the maximum final potential of the desired engine is to be used (for example, in competitions), the final adjustment or technical modification of its Fine Tune is exhausting and almost impossible without the help of a dyno machine. What the dyno device does in one day to adjust such engines, for common and common devices, it can last from a few days to a few weeks, and in the end, it will never reach its ideal state.
When should the car engine adjust?
The need to tune the engine usually results in the check engine light turning on. This light turns on after opening the switch and turns off automatically if there is no problem. If the check light does not turn off, the car may have one of the following problems.
Defective sensors
ECU communication malfunction
Interruption of communication between the sensors and the car's computer
Inertia switch activation
Immobilizer system malfunction
If the check light stays on, you should check the reasons, which can sometimes be solved by adjusting the engine. Old cars needed adjustment every 15 or 30 thousand kilometers. But the issue of engine adjustment in modern cars is a little different and the factory has set certain periods for it. Engine tuning increases vehicle acceleration, reduces emissions and fuel consumption.
Repairmen adjust the engine using a diag and an injector washer.
What components do the engine adjustment?
Changing candles and wires
Changing car filters
Engine filler
Cleaning the injector needle
✔️ Engine adjustment steps
Car electrical system: At this stage, the car's spark plugs and wires are checked and replaced if necessary. Also, the amount of partial spark should also be checked at this stage.
Air system: At this stage, if the life of the air filter is over, it must be replaced. Also, the filter housing and air valve must be cleaned and lubricated.
Fuel system: The fuel filter should be replaced if needed. If the injector needles are clean, they are washed with a special machine. Of course, if the injector needles are defective, they must be replaced. At the last stage, the repairmen fix the remaining problems using the diagnostic device.
When does the car need to adjust the engine?
Usually, the car should be checked at the beginning of each season to fix its faults. If you notice the engine failure late, the car will start late and the engine temperature will rise, which in the long run will cause wear and tear of the parts and bring heavy costs. Just because the car is working, you should not think that it is healthy and does not need to be checked. This misconception can cause irreparable damage to the car.
✔️ Signs of the car's need to adjust the engine
Having a bad start
Hard to start the car
Turn on the check light
Vibration while working
Deceleration of the car
Increased fuel consumption
Black smoke coming out of the exhaust
Hearing unusual engine noises
What are the benefits of adjusting the engine?
Emission reduction
increasing car acceleration< /span>
reduce fuel consumption
Decreasing engine noise
reducing engine heat
Engine performance improvement
< font color="#333333">Increasing the lifespan of car parts
Engine tuning should be done by an expert repairman, because it is a specialized and complicated work. Also, it is better to tune the car 2 to 4 times a year for better performance.
