GODIAG GT113
GODIAG GT113 Fuel Injector Tester and Cleaner Kit User Manual
awoṣe: GT113
1. Ifihan
The GODIAG GT113 Fuel Injector Tester and Cleaner Kit is a versatile diagnostic tool designed for testing and cleaning fuel injectors in gasoline engines. This kit features 8 distinct pulse modes, 6 different cleaning adapter sizes, and dual-channel output with selectable 12V/5V power drive, enabling comprehensive assessment and maintenance of various injector types including EFI, GDI, FSI, MPFI, SPFI, TBI, CFI, L-JET, LPG, K-Jetronic, and coil-type direct injectors. It is equipped with safety features such as reverse polarity and short circuit protection to ensure reliable operation.

Image 1.1: The GODIAG GT113 Fuel Injector Tester and Cleaner Kit, showing the main unit, various cleaning adapters, and carrying case.
2. Awọn iṣọra aabo
Please read and understand all safety information before operating this device.
- Iru ẹrọ: This device is suitable for gasoline engines only. Do not use with diesel engines.
- Afẹfẹ: Always operate in a well-ventilated area to avoid inhaling fuel vapors.
- Idaabobo Oju: Wear appropriate eye protection (safety glasses) to prevent injury from fuel spray or debris.
- Ewu ina: Fuel is highly flammable. Keep the device and work area away from open flames, sparks, and other ignition sources. Do not smoke while operating.
- Orisun Agbara: Ensure the power source is a stable 12V DC supply (vehicle battery or external adapter with at least 1.5A output).
- Polarity: Although the device has reverse polarity protection, always connect battery clamps correctly (red to positive, black to negative) to prevent damage.
- Aṣoju Isọnu: Use only approved fuel injector cleaning agents. Cleaning agent is not included with this kit.
- Lilo Ọjọgbọn: If unsure about any procedure, consult a qualified automotive technician.
3. Package Awọn akoonu
Daju pe gbogbo awọn nkan ti a ṣe akojọ rẹ si isalẹ wa ninu package rẹ:
- GODIAG GT113 Fuel Injector Tester Cleaner Tool (Main Unit)
- 6 Size Cleaning Adapters
- Itọsọna olumulo
- Ọran gbigbe

Aworan 3.1: Pariview of the GODIAG GT113 kit components, including the main tester unit, various adapters, and the user manual.
4. Ọja Ipariview
The GODIAG GT113 features an intuitive design for ease of use. Familiarize yourself with the main components:

Image 4.1: Labeled diagram of the GT113 main unit, highlighting its buttons, display, and connection points.
- Pulse Output Terminals: Connectors for up to two fuel injectors.
- Output Status Indicator Lights: Two lights that flash to indicate pulse output activity.
- Bọ́tìnì Yíyípadà Ipò (M): Press to cycle through the 8 pulse modes.
- Voltage Switch Button (V): Press to toggle between 12V and 5V output.
- Bọtini Ibẹrẹ/Duro: Initiates or terminates the pulse output.
- Iṣawọle DC 12V: Ibudo agbara titẹ sii fun ẹrọ naa.
- Display Pulse Mode Number: LCD screen showing the currently selected pulse mode.
- Voltage Indicator Lights: Lights indicating the selected output voltage (5V tabi 12V).
- Batiri Clamps: For connecting to a 12V vehicle battery.
5. Eto
Follow these steps to prepare your GODIAG GT113 for operation:
- Asopọ agbara:
- So batiri pupa pọ clamp to the positive (+) terminal of a 12V vehicle battery.
- So dudu batiri clamp to the negative (-) terminal of the 12V vehicle battery.
- Alternatively, connect an external DC 12V power adapter (minimum 1.5A output) to the DC 12V input port.
- The device will power on, and the LCD display will illuminate.
- Isopọ Abẹrẹ:
- Connect the fuel injector(s) to the pulse output terminals. The GT113 supports testing two injectors simultaneously.
- Rii daju asopọ to ni aabo.
- Adapter Selection (for Cleaning):
- If performing cleaning, select the appropriate cleaning adapter from the 6 available sizes that matches your injector type.
- The kit includes adapters for various injector sizes, including M12, Φ9.8, Φ10.8, Φ11.8, Φ12.0, and Φ13.5.

Aworan 5.1: alaye view of the six different cleaning adapter sizes and their compatibility.
- Fuel Pressure Tester (Optional):
- For comprehensive testing, the GT113 can be used in conjunction with any fuel pressure tester (not included).
6. Awọn ilana Iṣiṣẹ
Once the device is set up, follow these steps to test or clean your fuel injectors:
- Yan Ipo Pulse:
- Press the 'M' (Mode) button to cycle through the 8 available pulse modes. The selected mode number will be displayed on the LCD screen.
- The modes include: Pulse kukuru, Medium Pulse, Pulse gigun, ati Polusi ti o tẹsiwaju, each available at both 12V and 5V output.
- Choose the mode that best suits your testing or cleaning requirements.

Image 6.1: Explanation of the 8 pulse modes, LCD display, and indicator lights.
- Yan Ijade Voltage:
- Press the 'V' (Voltage) button to switch between 12V and 5V output. The corresponding indicator light (5V or 12V) will illuminate.
- Select 12V for most standard injectors. Use 5V for specific low-voltage injectors if required by the manufacturer.
- Start/Stop Pulse Output:
- Press the 'Start/Stop' button to begin the pulse output to the connected injector(s).
- The two output status indicator lights will flash rapidly, confirming the pulse output is active.
- To stop the pulse output, press the 'Start/Stop' button again.
- Injector Testing and Cleaning:
- Fun Idanwo: Observe the spray pattern of the injector and check for any leakage. A consistent, fine mist spray indicates proper function.
- Fun Fifọ: With the appropriate adapter and cleaning agent (not included), activate the pulse output. The pulsing action helps to dislodge deposits and clean the injector nozzle.

Image 6.2: The GODIAG GT113 in operation, demonstrating the cleaning process of a fuel injector.
7. Itọju
Proper maintenance ensures the longevity and reliability of your GODIAG GT113:
- Ninu: Fi aṣọ gbígbẹ tó rọ, tó sì gbẹ nu ẹ̀rọ náà lẹ́yìn lílo kọ̀ọ̀kan. Má ṣe lo àwọn ohun ìfọṣọ tàbí àwọn ohun èlò ìfọṣọ.
- Ibi ipamọ: Store the kit in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.
- Ayewo: Regularly inspect all cables, connectors, and adapters for signs of wear or damage. Replace any damaged components immediately.
- Batiri Clamps: Jeki batiri clamps mọ ki o si free ti ipata.
8. Laasigbotitusita
If you encounter issues with your GODIAG GT113, refer to the following common problems and solutions:
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ẹrọ naa ko ṣiṣẹ. | Incorrect power connection or insufficient power. | Rii daju pe batiri clamps are connected correctly (red to +, black to -) to a 12V vehicle battery. If using an adapter, ensure it is 12V DC with at least 1.5A output. |
| No pulse output to injectors. | Injector not connected properly, or 'Start/Stop' button not pressed. | Verify injectors are securely connected to the pulse output terminals. Press the 'Start/Stop' button to initiate pulsing. Check if output status indicator lights are flashing. |
| Voltage or mode selected. | Aṣiṣe olumulo ni yiyan. | Press the 'M' button to cycle through pulse modes. Press the 'V' button to toggle between 12V and 5V output. Observe the LCD and voltage Atọka imọlẹ. |
| Ẹ̀rọ náà máa ń pa láìròtẹ́lẹ̀. | Low batiri voltage tabi ipese agbara oro. | Check the 12V power source. Ensure the vehicle battery is adequately charged or the external adapter is providing stable power. |
| Idaabobo aabo ti mu ṣiṣẹ. | Reverse polarity or short circuit detected. | The device features built-in protection. Disconnect power, check all connections for correct polarity and any short circuits, then reconnect. |
9. Awọn pato
| Ẹya ara ẹrọ | Ẹ̀kúnrẹ́rẹ́ |
|---|---|
| Awoṣe | GT113 |
| Brand | GODIAG |
| Agbara Input | DC 12V (Vehicle Battery or External Adapter ≥ 1.5A) |
| O wujade Voltage | 5V / 12V (Selectable) |
| Pulse Modes | 8 (Short, Medium, Long, Continuous at 5V/12V) |
| Injector Compatibility | EFI, GDI, FSI, MPFI, SPFI, TBI, CFI, L-JET, LPG, K-Jetronic, coil-type direct, motorcycle injectors (12V and below 12V) |
| Cleaning Adapters | 6 sizes (M12, Φ9.8, Φ10.8, Φ11.8, Φ12.0, Φ13.5) |
| Idanwo igbakana | Up to 2 injectors |
| Aabo Awọn ẹya ara ẹrọ | Reverse Polarity Protection, Short Circuit Protection |
| Iwọn Nkan | 1.06 poun (isunmọ 0.48 kg) |
| Package Mefa | 7.48 x 5.31 x 3 inches (iwọn 19 x 13.5 x 7.6 cm) |
10. Atilẹyin ọja ati Support
GODIAG is committed to providing high-quality products and customer satisfaction. While specific warranty terms may vary by region and retailer, GODIAG products are generally backed by a manufacturer's warranty against defects in materials and workmanship.
For technical assistance, product inquiries, or warranty claims, please contact GODIAG customer support through their official website or the retailer from whom you purchased the product. GODIAG employs outstanding engineers to provide support and solutions for automotive diagnostic needs.
Please retain your proof of purchase for any warranty-related services.
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