Is your engine running lean? It could be caused by clogged fuel injectors

It doesn’t take much of a restriction in an injector to lean your fuel mixture. A restriction of  8% to 10% in a single fuel injector can be enough to cause your engine to misfire. This occurs when unburned oxygen enters the exhaust and makes the O2 sensor read lean. In older multi-port fuel injection systems that fire the injectors simultaneously, the computer compensates by increasing the “on” time for all the injectors, which can create an overly rich fuel condition in the other cylinders.

Fuel injection cleaning

With turbocharged engines, clogged fuel injectors can have a dangerous leaning effect that may lead to engine-damaging detonation. When the engine is under boost and higher rpm, it needs as much as the fuel the injectors can deliver. If the injectors are dirty and cannot keep up with the engine’s demands, the fuel mixture will lean out, causing detonation to occur.

Although all vehicles are vulnerable to injector clogging, the ones that are most vulnerable and most likely to experience such drive-ability problems are older vehicles with pintle-style multi-port injectors as later injector designs are more resistant to clogging. In the early pintle-style injectors, the nozzle shape and orifice size determine how much fuel flows through the injector and the shape of the spray pattern. Most pintle-style injectors are designed to produce a cone-shaped spray pattern.


Ultrasonic fuel injector cleaning service and flow testing will restore your dirty or clogged fuel injectors to the same level of a new fuel injector.

In addition to Fuel Injector Flow Testing we offer:

  • Ultrasonic Cleaning
  • Individual Back Flushing
  • High Pressure Reverse Flow Cleaning
  • Leak Testing
  • Spray Pattern Testing
  • Flow Measuring Test
  • New O-Rings, Filter Baskets, and Seals
  • Report of injector conditions before and after cleaning service

Save money with our Ultrasonic Fuel Injector Service

When the auto and motorcycle industry moved to Electronic Fuel Injection (EFI), the need for professional injector cleaning as an affordable cost became an attractive alternative to expensive injector replacement. ProFlow can help restore lost power and performance to your engine with our Ultrasonic Fuel Injector Cleaning Service.

Get started today.

 GIVE US A CALL AT 727-992-0435


Ultrasonic Fuel Injector Cleaner


Fuel Injection Cleaning Specialists


Professional Fuel Injector Cleaning