DTC P0443 on Chevrolet Spin 1.5 and Check Engine Lights – On this occasion, I will share a little experience when I encountered the Chevrolet Spin 1.5 case. While handling this case, we found the presence of DTC P0443 on Chevrolet Spin 1.5 and Check Engine Lights.
As we know that when the check engine indicator lights up, it means that there is damage or malfunction. These conditions usually come from engine sensors, actuators, or engine control systems. Interestingly, in addition to the check engine indicator, DTC P0443 also appears, which means that according to the manual, it is a warning to immediately carry out an inspection to the nearest repair shop.
DTC P0443 on Chevrolet Spin 1.5 and Check Engine Lights
This time I tried to do the repair myself using makeshift tools. I tried to use the main tool, which is a scanner or diagnostic tool, incidentally, the only tool I have is OBD2 ELM327. This tool may be very limited because it is only capable of performing standard functions such as checking DTCs, clearing DTCs, and viewing live data of some sensors.
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The first step is to do an analysis by connecting the OBD2 ELM327 to the Chevrolet Spin via the DLC port located under the steering wheel. Then open the torque application, and I happened to use the free Torque Lite version. After the Torque application, OBD2, and the car are connected, perform a fault check on the engine by selecting the fault codes menu > Show logged fault.
After selecting the menu, the torque application will scan for electrical damage to the engine. After a while, the results of the inspection appear and we will find out that there is a fault code or DTC P0443 with a description of the Evaporative Emission System Purge Control Valve Circuit.
Finding Causes and Solutions
Based on the scan results, we know that there is a problem with the EVAP purge solenoid system. This is a system that functions to drain fuel vapor from the tank into the engine.
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The result of reading the fault code shows that there is a problem with the Evap Purge system circuit. In this case, the possibility of damage comes from a broken cable or a faulty connection of the Purge EVAP solenoid cable. For that, we need to know the location of the EVAP purge solenoid. With the help of a Google search, I found the location of the Evap Purge solenoid, which is on the intake manifold of the Chevrolet Spin to be precise near the throttle body.
Then after I find the location of the Evap Purge solenoid, check the wiring section of the cable that controls the solenoid. After doing a detailed inspection of the Evap Purge solenoid wiring path, I found a broken wire on one of the Evap Purge solenoid wires. As shown in the picture below, the condition of the cable is damaged.
After I found the cause of the damage, namely the break of the Evap purge solenoid cable, repair the cable by connecting it. To protect the electrical wires and prevent the problem from recurring, I tie the wires tightly using cable insulation. After the cables and components are neatly installed, return to the torque application and enter the clear fault menu to clear the fault data. Run the clear fault menu and the result is that the fault code disappears and the check engine indicator and DTC P0443 no longer exist.
Maybe someone wants to know about some important things related to important components in a charcoal canister system unit.
What is a Charcoal Canister?
A charcoal canister is a vehicle component that functions to accommodate fuel vapor coming from the tank when the tank temperature increases. When the temperature around the tank increases the fuel will evaporate, and the vapor contains toxic levels. If we throw it into the air, it will become a pollutant. So, to avoid that, the manufacturer makes a place to accommodate the vaporized fuel. Furthermore, the steam will enter the intake manifold and when the engine is running the steam enters the cylinder for combustion. The components in one unit of the charcoal canister system consist of;
- Fuel Tanks. The fuel tank is a mandatory component of the fuel system. However, the fuel tank design must have sufficient space to expand when the temperature in the tank increases.
- Fuel cap. This component is not arbitrarily closed. However, this component has a relief valve that will open at a certain pressure. The fuel cap will prevent excess pressure from building up in the fuel tank.
- Separators. This component is located in the canister hose area in the tank. Its function is to filter so that only steam enters the canister tube.
- Tube Canister. This component will accommodate fuel vapor from the tank. The steam in the canister tube will enter as a mixture of air for the combustion process.
- Evap Canisters. This component is located in the intake manifold area. The main function of this component is to channel gasoline vapor to the intake manifold. Inside the EVAP canister, there is a valve that will work based on the vacuum in the intake. But in modern engines, the ECU regulates valve opening via a solenoid valve.