20 Best Otc Injector Tester [2025]

Are you looking for the best otc injector tester? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling otc injector tester.

We Recommended:

# Preview Product
1 OTC 3398 Fuel Injection Pulse Tester OTC 3398 Fuel Injection Pulse Tester
2 OTC 11565 Replacement High Pressure Gauge for Nozlrater Diesel Injector Nozzle Tester OTC 11565 Replacement High Pressure Gauge for Nozlrater Diesel Injector Nozzle Tester
3 OTC 4200 Nozlrater Diesel Fuel Injector Nozzle Tester OTC 4200 Nozlrater Diesel Fuel Injector Nozzle Tester
4 OTC 6550PRO Professional Master Fuel Injection Service Kit OTC 6550PRO Professional Master Fuel Injection Service Kit
5 OTC 4202 6-Piece Nozlrater Nozzle-Tester Adapter Set with Metal Storage Box OTC 4202 6-Piece Nozlrater Nozzle-Tester Adapter Set with Metal Storage Box
6 OTC Tools (7448A) Fuel Injection Cleaner Canister OTC Tools (7448A) Fuel Injection Cleaner Canister
7 OTC Tools 7649A Fuel Injector Cleaning Kit OTC Tools 7649A Fuel Injector Cleaning Kit
8 Hromee Fuel Pump and Vacuum Tester Gauge, Carburetor Pressure Diagnostics Leakage Tool Kit Hromee Fuel Pump and Vacuum Tester Gauge, Carburetor Pressure Diagnostics Leakage Tool Kit
9 OTC 3674 Diesel Fuel Pressure Tester OTC 3674 Diesel Fuel Pressure Tester
10 OTC 4480 Stinger Basic Fuel Injection Service Kit OTC 4480 Stinger Basic Fuel Injection Service Kit
11 OTC (3054E) Noid Lite/IAC Test Kit OTC (3054E) Noid Lite/IAC Test Kit
12 OTC 6770 Diesel Service Tool Kit for Ford 6.0L Engine OTC 6770 Diesel Service Tool Kit for Ford 6.0L Engine
13 OTC (3050E) Noid Lite/IAC Test Kit OTC (3050E) Noid Lite/IAC Test Kit
14 OTC 5630 Fuel Pressure Test Kit , Black OTC 5630 Fuel Pressure Test Kit , Black
15 ALLOSUN Fuel Injector Tester & Adapter DIY Cleaning Tool Kit Set (Fuel Injector Tester + Adapter) ALLOSUN Fuel Injector Tester & Adapter DIY Cleaning Tool Kit Set (Fuel Injector Tester + Adapter)
16 OTC 3385 Universal Gauge and Component Tester OTC 3385 Universal Gauge and Component Tester
17 OTC 6764 Injector Pressure Regulator Controller for Ford 6.0L Diesel Engine OTC 6764 Injector Pressure Regulator Controller for Ford 6.0L Diesel Engine
18 OTC (3415) CAN Test Box - Breakout Box and Protocol Detector OTC (3415) CAN Test Box - Breakout Box and Protocol Detector
19 OTC 5609 Cylinder Leakage Tester Kit , black OTC 5609 Cylinder Leakage Tester Kit , black
20 BOSCH (FIX 7818 Fuel Pressure Tester Kit BOSCH (FIX 7818 Fuel Pressure Tester Kit
Bestseller No. 1
OTC 3398 Fuel Injection Pulse Tester
  • 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
Bestseller No. 2
OTC 11565 Replacement High Pressure Gauge for Nozlrater Diesel Injector Nozzle Tester
  • Replacement gauge for OTC 4200 Nozlrater diesel injector nozzle tester
  • Gauge Calibrated 0-5000 PSI (350 bar)
  • 3-1/ 2 inch dial face features easy to read black/red markings on white background
  • Indicator needle to record maximum pressure reached
  • Gauge connection - 1/4 inch Male NPT
Bestseller No. 3
OTC 4200 Nozlrater Diesel Fuel Injector Nozzle Tester
  • Ultimate tool for diagnosing a number of problems that affect diesel fuel injector nozzles
  • Enables technicians to check for leakage, pop-off pressure, spray pattern, and chatter
  • This tool will accommodate a wide range of injectors
  • Features a rugged, lightweight reservoir that holds 7/10 of a gallon of fuel
  • Equipped with a replaceable 2-micron filter; large, dual-scale, high-pressure gauge is protected by a guard and includes an indicator needle to record...
Bestseller No. 4
OTC 6550PRO Professional Master Fuel Injection Service Kit
  • Perform fuel pressure testing diagnose weak fuel pumps or restricted filters test for fuel flow and perform leak-down tests
  • 0-100 pounds per square inch fuel pressure Gauge
  • 47 OTC fuel injection system adapters each with a quick connect Schrader Valve
  • 1997-2008 fuel injection service application manual
  • Replacement seal kit
Bestseller No. 5
OTC 4202 6-Piece Nozlrater Nozzle-Tester Adapter Set with Metal Storage Box
  • OTC's Nozzle Tester Adapter Set is essential for testing injector nozzles on automotive diesel engines
  • The set has 6 universal adapters that connect to the number 4200 Nozlrater testing unit - all packed in a handy, metal storage box
  • Set features the No. 36352 Fuel Line Assembly, No. 23617 90 Degree Adapter, No. 23621 Straight Adapter, No. 23622 Adapter Nut, No. 201917 Adapter Nut,...
  • Set services: Chevy Chevette & GM 1980 and newer C.A.V. nozzles; GM 1979 and newer pencil nozzles; GM 1978 pencil nozzles; Nissan, Toyota, Audi,...
  • High-grade materials ensure quality performance over the lifetime of the tool
Bestseller No. 6
OTC Tools (7448A) Fuel Injection Cleaner Canister
  • Designed for direct fuel rail and injection cleaning
  • Debris that is loosened or dissolved is then combusted and ultimately removed through the vehicles exhaust system
  • Machined from stainless steel, the hydraulic cylinder has a 22 ounce capacity, and is able to handle pressures up to 30,000 PSI
  • The full size cap makes adding solvents easy and spill proof
  • 3-1/2" gauge makes setting the outlet pressure simple and accurate
SaleBestseller No. 7
OTC Tools 7649A Fuel Injector Cleaning Kit
  • Canister features stainless steel construction with a wide throat to reduce spillage - safely holds up to 22 ounces
  • Easy to read 3-1/2 inch gauge, with protective cover, for setting accurate delivery pressure
  • Hose material meets SAE J30R9 standard for gasoline and ethanol blended fuels - removable for ease of storage
  • Includes our most common rail adapters for many domestic and import applications (see description below for full list), also includes decarbonizing...
  • Includes 'blow-out' fitting for use with shop air supply to remove residual chemicals from hose
SaleBestseller No. 8
Hromee Fuel Pump and Vacuum Tester Gauge, Carburetor Pressure Diagnostics Leakage Tool Kit
  • FUEL PUMP - This pressure gauge set can be used to test fuel pump pressure, emission control devices, leaky, stuck open or burnt valves. Clogged...
  • CAR VACUUM TESTER - Also can be used for testing engine vacuum lines, brake assist system, carburetor and intake manifold for leaks, vacuum or...
  • PRESSURE GAUGE - The gauge has 4 inches diameter large scale, color-coded measurement, rubber surrounded protective and a hook on the top. so it’s...
  • HOSE AND ACCESSORIES - The kit comes with a 2ft/61cm rubber hose (13/64-inch ID and 23/64-inch OD). The max working pressure is 40PSI. Other...
  • EASY STORAGE - Heavy-duty 11”x 5.7”x 2.4”inch (28cm x 14.5cm x 6cm) plastic blow-molded carrying case for easy transportation, safe storage, and...
Bestseller No. 9
OTC 3674 Diesel Fuel Pressure Tester
  • OTC's Diesel Fuel Pressure Tester features simple one wire connectivity to the fuel pressure sensor signal wire
  • Designed for diesel engines that have a fuel pressure sensor reading used by vehicle computer
  • Displays pressure in PSI or BAR; 0-22,000 PSI range; 0-1,500 BAR range
  • Reads diesel fuel pressure in vehicle; no fittings required; readings alternate between current and maximum pressure
  • Molded plastic storage case keeps the tool protected when not in use
Bestseller No. 10
OTC 4480 Stinger Basic Fuel Injection Service Kit
  • Performs running, residual, rail and flow rate pressure tests
  • Kit includes adapters, hoses and fittings to test fuel injection systems
  • Also includes two popular adapters for import vehicles as well as a GM TBI adapter
  • Professional dual scale gauge reads 0-100 PSI and 0-700 kPa with relief valve, fuel discharge hose and rubber boot
  • All packaged in a professional, heavy-duty, blow molded carrying case
Bestseller No. 11
OTC (3054E) Noid Lite/IAC Test Kit
  • Simplest method for eliminating the EFI system or idle air control as possible faults on no-start vehicles
  • Disconnect the fuel injectors, plug in a Noid Lite, and crank the engine
  • A flashing light indicates normal pulsing voltage
  • Expanded set of eight specific Noid Lites covers: GM PFI, Ford TBI, Geo TBI, Bosch PFI, GM TBI, GM SCPI, and now new applications of Bosch 2 and...
  • Includes a molded plastic case and harness extension that allows for convenient remote viewing from the driver's seat
Bestseller No. 12
OTC 6770 Diesel Service Tool Kit for Ford 6.0L Engine
  • 8 popular 6.0L Diesel Service Tools in one convenient kit
  • Properly test vehicle systems for leaks and blockage
  • Safely remove and re-install harnesses without damage
  • Time saving convenience, this kit comes in a handy storage case that helps you keep these tools together - right where you need them
Bestseller No. 13
OTC (3050E) Noid Lite/IAC Test Kit
  • Proven test device to quickly determine if the electrical signal is present at the fuel injector
  • Just plug in and turn over the engine; flashing noid indicates good signal
  • Expanded set of eight Noid Lites cover: GM PFI, Ford TBI, Geo TBI, Bosch PFI, GM TBI, GM SCPI, and now new applications of Bosch 2 and Multec 2
  • Kit comes in molded plastic case
  • Includes a harness extension that allows for convenient remote viewing from the driver's seat
Bestseller No. 14
OTC 5630 Fuel Pressure Test Kit , Black
  • OTC's Fuel Pressure Test Kit quickly and easily locates any malfunctioning fuel system component - fuel filters, pressure regulators, fuel lines, and...
  • Large, easy to read gauge features an impact resistant rubber encased housing
  • 0-100 psi, 0-700 kPa
  • High quality solid brass fittings, hose, and tubing for long lasting performance and reliability
  • Convenient pressure relief valve allows for safe, clean testing
SaleBestseller No. 15
ALLOSUN Fuel Injector Tester & Adapter DIY Cleaning Tool Kit Set (Fuel Injector Tester + Adapter)
  • Operates injectors individually to diagnose fuel delivery problems on petrol vehicles with electronic fuel injection.
  • Works with engine off and pulse timer may be used with fuel pressure gauge.
  • Large LED display/4 Pulse Modes. Test Lead: 41.5cm / 16.3 inches.
  • It work with any fuel pressure tester. IMPORTANT NOTE: Gasoline engine only, NOT for diesel engine.
  • Powered by 12V battery.
Bestseller No. 16
OTC 3385 Universal Gauge and Component Tester
  • Pinpoint problems in fuel oil temperature and vacuum electrical gauges
  • This gauge and component tester includes a test light and switch to also test instrument voltage regulators on various vehicles
  • Use it as an instrument gauge tester by attaching the alligator clips to sensors and wiring harnesses on a variety of vehicles
  • Included is an instrument gauge application data sheet listing resistance set points
  • Determination of damage by impact tools is subject to SPX evaluation and discretion
Bestseller No. 17
OTC 6764 Injector Pressure Regulator Controller for Ford 6.0L Diesel Engine
  • OTC's Injector Pressure Regulator Controller for Ford 6.0L Diesel Engines plugs directly into the factory Injector Pressure Regulator using an OE...
  • Allows the user to close the injector pressure regulator in order to determine if proper injector control pressure is achieved and sustained for the...
  • Tactile on/off switch with LEDs confirming power to the tool and signal to the injector pressure regulator
  • Permits a quick initial diagnosis of the pressure regulator when a hard start or no start situation exists
  • Must be used in conjunction with any brand scan tool capable of reading fuel pressure on 6.0 liter Ford diesel engines
Bestseller No. 18
OTC (3415) CAN Test Box - Breakout Box and Protocol Detector
  • Used for diagnosing electrical faults and CAN bus line activity
  • Check power and ground circuits, check active protocol lines, or connect a multimeter or oscilloscope for detailed signal analysis
  • Connect, detect, monitor voltage and more
  • Connects between Diagnostic Link Connector (DLC) and scan tool
  • Detects data and protocol communication and monitors system voltage with a display and high/low alarm
SaleBestseller No. 19
OTC 5609 Cylinder Leakage Tester Kit , black
  • OTC's Cylinder Leakage Tester Kit quickly diagnoses internal engine problems like bad rings, valves, and leaking head gaskets and comes complete with...
  • Dual 2-1/2 inch gauges read 0-100 psi and 0-700 kPa and feature chrome bezels and rugged protective outer boots
  • Kit features a pressure regulated manifold with quick couplers, 24 inch long 14mm flex hose, and 10 mm, 12 mm, and 18 mm thread adapters
  • Rugged, blow molded storage case with removable lid keeps components organized and protected when not in use
  • Includes detailed instruction chart
SaleBestseller No. 20
BOSCH (FIX 7818 Fuel Pressure Tester Kit
  • Ford Fuel Line Adapter included
  • Large, easy-to-read 0-100 psi scale
  • Solid brass fittings
  • Pressure relief valve for safe, clean testing

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After hours of searching and using all the models on the market, we have found the best otc injector tester for 2023. See our ranking below!

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  1. Brand Value: Every brand of otc injector tester has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an otc injector tester?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your otc injector tester.
  5. Customer Ratings: Number ratings grade otc injector tester objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their otc injector tester.
  7. Product Quality: You don’t always get what you pay for with an otc injector tester, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an otc injector tester is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining otc injector tester information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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FAQ:

Q: What is a Pulse Tester for fuel injectors?

A: From the Manufacturer. SPX OTC Fuel Injection Pulse Tester is designed to check cylinder balance by firing individual injectors. It includes wiring harness adapter and instructions. This tester fires individual injectors in 1/2-second increments in three different ranges which are 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds,…

Q: How fast do injectors fire in a tester?

A: This tester fires individual injectors in 1/2-second increments in three different ranges which are 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds, 100 pulses of 5 milliseconds. It features power and output lights that indicate test activation. OTC OTC 0.035 ounces

Q: How do you check the balance of an injector?

A: Check cylinder balance by firing individual injectors at 1/2-second increments in three different ranges: 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds, 100 pulses of 5 milliseconds. Power and output lights indicate test activation.

Q: How to diagnose diesel fuel injector nozzles?

A: • Here is the ultimate tool for diagnosing a number of problems that affect diesel fuel injector nozzles. • The Nozlrater tester enables you to check for leakage, pop-off pressure, spray pattern, and chatter. This tool will accommodate a wide range of injectors.