Nissan Direct Injector Testing, Cleaning, and Resealing Service

Maximize your Nissan’s performance and reliability with our Direct Injector Testing, Cleaning, and Resealing Service. Ship your injectors to LaCorte Automotive, and we’ll handle the rest — restoring them to factory or better-than-factory performance.

What’s Included:

Comprehensive Testing
Each injector is precision-tested for flow rate, spray pattern, leakdown, and electrical performance to ensure accurate fueling across all cylinders.

Advanced Ultrasonic Cleaning
We use professional ultrasonic cleaning systems and backflushing to remove carbon, varnish, and fine deposits from both the injector tip and internal fuel pathways.

High-Quality Resealing
Every injector receives new premium-grade seals, o-rings, filters, and combustion seals — ensuring proper seating and long-term reliability under high pressure.

Detailed Spec Sheet
You’ll receive a complete before-and-after performance report showing flow rates, leak test results, and spray pattern improvements for each injector.

How It Works:

1. Ship Your Injectors to Us
   Follow our provided shipping instructions to safely send your injectors.

2. We Test, Clean, and Reseal
   Our technicians restore your injectors using industry-leading equipment and precision methods.

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

Supported Nissan Direct Injection (GDI) Engines

4-Cylinder Engines

• 1.6L MR16DDT DIG (Juke, Sentra SR Turbo, Pulsar SSS)

• 1.8L MR18DDG DIG (Note, Tiida, Sylphy)

• 2.0L MR20DD DIG (Rogue, X-Trail, Qashqai, Sentra)

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

6-Cylinder Engines

• 3.0L VR30DDTT (Infiniti Q50, Q60, and Z models)

• 3.5L VQ35DD (Pathfinder, Maxima, Murano, QX60)

Performance & Specialty

• 3.0L VR30 Twin Turbo (Nissan Z, Infiniti Red Sport)

• Port + direct injected hybrid systems (track and tuning applications)

Why Choose LaCorte Automotive?

We restore Nissan GDI injectors to OEM precision — improving throttle response, fuel economy, and idle quality. Each injector is verified on our professional flowbench to ensure perfect cylinder balance and reliable performance.