Infiniti Direct Injector Testing, Cleaning, and Resealing Service

Enhance your Infiniti’s performance, power, and fuel economy with our Direct Injector Testing, Cleaning, and Resealing Service. Ship your injectors to LaCorte Automotive, and we’ll clean, flow-test, and reseal them to OEM specifications using precision GDI flowbench equipment and ultrasonic cleaning technology.

What’s Included:

Comprehensive Testing
Each injector is electronically and hydraulically tested for flow rate, spray pattern, leak integrity, and pulse response under real-world GDI pressures.

Ultrasonic Carbon Cleaning
We use advanced ultrasonic cleaning and reverse backflushing to remove carbon buildup, varnish, and combustion deposits that cause misfires and uneven fueling.

High-Quality Resealing
Every injector is resealed with new premium Teflon combustion seals, o-rings, and microfilters to ensure leak-free operation and long-term reliability.

Detailed Spec Sheet
A complete before-and-after test report is included, showing flow rates, spray balance, and performance improvements for each injector.

How It Works:

1. Ship Your Injectors to Us
   Use our provided shipping instructions to send your injectors securely to our facility.

2. We Test, Clean, and Reseal
   Our technicians restore your injectors using industry-grade GDI flowbench calibration and ultrasonic cleaning systems.

3. We Ship Them Back
   Your cleaned, resealed injectors and a detailed spec report are shipped back ready for installation.

Supported Infiniti Direct Injection (GDI / DIG-T) Engines

4-Cylinder Engines

• 2.0L MR20DD / KR20DDET (QX30, Q50, G20, FX20, JDM models)

• 2.0L VC-Turbo KR20DDET (QX50, QX55, Altima VC-Turbo)

6-Cylinder Engines

• 3.0L VR30DDTT Twin-Turbo GDI (Q50 Red Sport 400, Q60, Skyline)

• 3.5L VQ35DD GDI (Q70 Hybrid, Pathfinder, Murano, Maxima)

• 3.7L VQ37VHR GDI Hybrid / Performance builds (Q50, Q70)

8-Cylinder Engines

• 5.6L VK56VD GDI (QX56, QX80, Titan, Armada)

• 5.0L VK50VE (FX50, M56, Q70S)

Performance & Specialty

• VR30DDTT Twin-Turbo tuning builds

• Port + Direct Injection hybrid setups for boosted or track applications

Why Choose LaCorte Automotive?

Our Infiniti GDI injector service restores your injectors to factory precision — eliminating misfires, improving fuel trims, and ensuring even cylinder fueling. Each injector is flow-tested, balanced, and verified under full GDI pressure conditions.