---
product_id: 13671504
title: "OTC 3398 Fuel Injection Pulse Tester"
brand: "otc"
price: "€ 374.02"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/13671504-otc-3398-fuel-injection-pulse-tester
store_origin: ES
region: Spain
---

# 3 pulse ranges for ultimate precision Power & output lights for instant feedback Vehicle-powered for on-the-go testing OTC 3398 Fuel Injection Pulse Tester

**Brand:** otc
**Price:** € 374.02
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock flawless engine performance with pinpoint injector testing!

## Quick Answers

- **What is this?** OTC 3398 Fuel Injection Pulse Tester by otc
- **How much does it cost?** € 374.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/13671504-otc-3398-fuel-injection-pulse-tester)

## Best For

- otc enthusiasts

## Why This Product

- Trusted otc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** At just 4.9 x 2 x 8.1 inches and 0.035 oz, it’s the perfect tool for professional mechanics on the move.
- • **Instant Visual Feedback:** Power and output indicator lights keep you informed in real-time during every test.
- • **Plug & Play Convenience:** Includes wiring harness adapter and clear instructions for seamless setup and use.
- • **Precision Pulse Control:** Test injectors with 1 pulse of 500ms, 50 pulses of 10ms, or 100 pulses of 5ms for pinpoint diagnostics.
- • **Cylinder Balance Mastery:** Fire individual injectors at 1/2-second intervals to identify performance gaps effortlessly.

## Overview

The OTC 3398 Fuel Injection Pulse Tester is a compact, vehicle-powered diagnostic tool designed to test fuel injectors with three precise pulse ranges. It enables mechanics to check cylinder balance by firing individual injectors at half-second intervals, featuring power and output lights for clear test activation feedback. Complete with wiring harness adapter and instructions, it’s engineered for professional-grade injector diagnostics on the go.

## Description

Full description not available

## Features

- Fuel injector testing requires precision equipment and this vehicle powered tool fills that requirement
- It enables you to check cylinder balance by firing individual injectors at 1/2-second increments
- Three different ranges 1 pulse of 500 milliseconds 50 pulses of 10 milliseconds and 100 pulses of 5 milliseconds
- Power and output lights indicate test activation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | OTC |
| Power Source | Corded Electric |
| Color | Black |
| Item Weight | 1 Grams |
| Item dimensions L x W x H | 4.9 x 2 x 8.1 inches |
| UPC | 731413008818 |
| Manufacturer | OTC |
| Global Trade Identification Number | 00731413008818 |
| Model | 3398 |
| Item Weight | 0.035 ounces |
| Product Dimensions | 4.9 x 2 x 8.1 inches |
| Item model number | 3398 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 3398 |

## Product Details

- **Brand:** OTC
- **Power Source:** Corded Electric
- **Color:** Black
- **Item Weight:** 1 Grams
- **Item dimensions L x W x H:** 4.9 x 2 x 8.1 inches

## Images

![OTC 3398 Fuel Injection Pulse Tester - Image 1](https://m.media-amazon.com/images/I/61W7H3XWi0L.jpg)
![OTC 3398 Fuel Injection Pulse Tester - Image 2](https://m.media-amazon.com/images/I/81kumKMpSpL.jpg)
![OTC 3398 Fuel Injection Pulse Tester - Image 3](https://m.media-amazon.com/images/I/81Vu0nrnELL.jpg)

## Questions & Answers

**Q: Will it let you know if injector is clogs or leaking? Can you see a spray pattern?**
A: it pulses the injectors individually with 3 different pulse rates, that's all it does. it has a ford connector with 2 extra wires for different connectors. have to use it in conjunction with a pressure gauge.

**Q: What is the difference between ultrasound and this button? ? What does the injector mean and how is this button tested? Is there an explanatory manual**
A: there is a explanatory manual..

**Q: Want to test a jeep motor, does it have the ev1 or ev6 style connector?**
A: I bought a "universal" connector separately; but, as illustrated, this unit includes an alternate connector consisting only of two female pin connectors (almost all injector connections are male), which can connect to on any injector (polarity doesn't mater).

**Q: will this work on 03 dodge cummins common rail engine?**
A: yep.

## Frequently Bought Together

- OTC 3398 Fuel Injection Pulse Tester
- OTC 5609 Cylinder Leakage Tester Kit , Black
- OTC 5613 Vacuum/Pressure Gauge Kit

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---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-07*