The Toyota 4AGE 20v Blacktop is a popular choice for those who want to upgrade their car’s engine. However, wiring it can be a bit tricky. In this article, we will provide a step-by-step guide on how to wire your 4AGE 20v Blacktop engine.
What is the 4AGE 20v Blacktop?
The 4AGE 20v Blacktop is a high-performance engine used in Toyota’s sporty cars. It is a four-cylinder, 1.6-liter engine that produces up to 170 horsepower. It is known for its high-revving capability and responsiveness.
How does the 4AGE 20v Blacktop differ from the 4AGE 16v?
The 4AGE 20v Blacktop has a few key differences from the older 4AGE 16v engine. The 20v engine has a dual overhead camshaft design, whereas the 16v only has a single overhead camshaft. The 20v also has a higher compression ratio and a more advanced ECU.
Wiring the 4AGE 20v Blacktop
What do you need to wire the 4AGE 20v Blacktop?
To wire the 4AGE 20v Blacktop, you will need a few things:
| Item | Quantity |
|---|---|
| ECU | 1 |
| Engine Wiring Harness | 1 |
| Ignition Coil | 4 |
| Spark Plugs | 4 |
| Fuel Injectors | 4 |
| Fuel Pump | 1 |
Additionally, you will need a wiring diagram specific to the 4AGE 20v Blacktop engine. You can usually find this online or by consulting with a mechanic or car enthusiast who is familiar with this engine.
Step-by-Step Guide
Now that you have everything you need, it’s time to start wiring your 4AGE 20v Blacktop engine. Here is a step-by-step guide:
Step 1: Install the Ignition Coils
The first step is to install the four ignition coils. These should be mounted on the engine’s valve cover. The wiring for these coils should be connected as follows:
- Coil 1: Connect the positive terminal to pin 1A on the ECU and the negative terminal to the engine ground.
- Coil 2: Connect the positive terminal to pin 1B on the ECU and the negative terminal to the engine ground.
- Coil 3: Connect the positive terminal to pin 1C on the ECU and the negative terminal to the engine ground.
- Coil 4: Connect the positive terminal to pin 1D on the ECU and the negative terminal to the engine ground.
Step 2: Install the Fuel Injectors
Next, install the four fuel injectors. These should be mounted on the engine’s intake manifold. The wiring for these injectors should be connected as follows:
- Injector 1: Connect the positive terminal to pin 3A on the ECU and the negative terminal to the engine ground.
- Injector 2: Connect the positive terminal to pin 3B on the ECU and the negative terminal to the engine ground.
- Injector 3: Connect the positive terminal to pin 3C on the ECU and the negative terminal to the engine ground.
- Injector 4: Connect the positive terminal to pin 3D on the ECU and the negative terminal to the engine ground.
Step 3: Connect the Fuel Pump
The fuel pump should be connected to pin 5 on the ECU. The positive wire from the fuel pump should be connected to pin 5A, and the negative wire should be connected to pin 5B.
Step 4: Connect the Spark Plugs
The spark plugs should be connected as follows:
- Spark Plug 1: Connect the wire to pin 2A on the ECU.
- Spark Plug 2: Connect the wire to pin 2B on the ECU.
- Spark Plug 3: Connect the wire to pin 2C on the ECU.
- Spark Plug 4: Connect the wire to pin 2D on the ECU.
Step 5: Connect the Engine Wiring Harness
The engine wiring harness should be connected to the ECU. Make sure to match up the correct pins, as specified in the wiring diagram.
FAQ
Can I use the same wiring harness as the 4AGE 16v?
No, the 4AGE 20v Blacktop has a different wiring harness than the 4AGE 16v. Using the wrong harness could result in damage to the engine or other components of the car.
Do I need a special ECU for the 4AGE 20v Blacktop?
Yes, the 4AGE 20v Blacktop requires a special ECU. Using the wrong ECU could result in poor performance or even engine failure.
Can I do the wiring myself, or should I hire a professional?
If you have experience with wiring engines, you may be able to do it yourself. However, if you are not confident in your skills, it is best to hire a professional to avoid any potential damage or safety risks.
Where can I find a wiring diagram for the 4AGE 20v Blacktop?
A wiring diagram for the 4AGE 20v Blacktop can usually be found online or by consulting with a mechanic or car enthusiast who is familiar with this engine.
By following this guide and consulting a wiring diagram specific to your engine, you should be able to successfully wire your 4AGE 20v Blacktop engine. Good luck!
