Fuel injector cleaning, flow testing & ultrasonic service

Ultrasonic cleaning uses high-frequency sound waves transmitted through a cleaning solution to create microscopic bubbles that implode on the injector surface. This process, called cavitation, dislodges carbon deposits, varnish, and debris from internal passages that chemical cleaners can't reach. Combined with pulsed operation and high-pressure back-flushing, it thoroughly cleans the injector from the inside out.

For daily drivers, cleaning every 30,000-50,000 miles is a reasonable maintenance interval. High-performance, forced-induction, and marine applications benefit from more frequent service. If you're experiencing rough idle, misfires, hesitation, or reduced fuel economy, cleaning should be done promptly regardless of mileage. Vehicles using ethanol-blended fuels (E10/E15) or those that sit idle for long periods tend to see faster deposit buildup.

Port injectors spray fuel into the intake manifold before the combustion chamber. GDI injectors spray fuel directly into the cylinder at very high pressures, typically 1,500 to 3,600 PSI at operating conditions. This difference means GDI injectors require specialized high-pressure test equipment to be properly diagnosed. Testing GDI injectors on standard port-injection benches produces inaccurate results and can miss real performance issues. Our Carbon Zapp equipment tests GDI injectors at up to 300 Bar (4,350 PSI), the only way to get accurate data.

Yes, marine injector service is one of our specialties. We service injectors from most gasoline outboard and inboard marine engines including Yamaha HPDI, Mercury Optimax (with air injectors), and standard port-injection outboards from Suzuki, Honda, Evinrude, and others. Many Florida boat dealers and marine shops send their injectors to us exclusively.

Fill out our online repair form first. This enters your job into our system and ensures we have all your contact and injector information before your package arrives. Then ship via FedEx or UPS only (no USPS) to our facility in Dade City, FL. Include the injectors with their existing o-rings. No paper form needed inside the package. Your online submission handles everything. You'll receive real-time status updates through your customer portal as your job moves through the process.

In most cases, yes, especially for performance, marine, and OEM injectors that are no longer easy to source or are expensive to replace. Professional cleaning typically costs $20-$45 per injector compared to $80-$400+ each for quality replacements. We back our service with a performance guarantee: if we can't restore your injector to like-new performance, you don't pay for service on that injector.

No. We specialize exclusively in gasoline fuel injectors: port injection, side feed, GDI, Piezo GDI, marine outboard, and Yamaha HPDI. We do not service diesel common-rail or mechanical diesel injectors.