What would happen if an injector in a multi point fuel injection system failed?
A faulty fuel injector may cause a rough engine idle if it fails to deliver a steady, constant stream of flow to a vehicle’s engine. A dysfunctional fuel injector may inject too much or too little fuel into an engine’s cylinders. Both scenarios can cause a rough engine idle.
What are signs of a bad injector?
Here are a few signs there might be something wrong with your fuel injectors.
- The Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire.
- Idling Gets Rough.
- Your Gas Mileage Tanks.
- The RPM Needle Starts to Dance.
- Your Car Won’t Start.
What do you need to know about a HEUI injector?
Because a HEUI injector requires both oil and diesel to follow intricate internal paths in order to operate, keeping both fluids as clean and fresh as possible is vital.
What do you need to know about the HEUI system?
3. Run a Quality Oil. The oil in a HEUI injection system works harder than any other engine oil in the world. Not only is it pressurized between 500 psi and 3,600 psi in the high-pressure circuit, but it is additionally responsible for lubricating and cooling the rest of the engine.
What are the symptoms of a failed injector?
The most obvious symptom of stiction is a diagnosis of a failed injector. However, other symptoms of stiction occur well before your mechanic runs the diagnostics on your engine. If you are experiencing white smoke, rough running/idling or misfires, stiction is likely the problem.
How does the HEUI system control fuel timing?
Until the development of the HEUI system, pressurization of fuel and injection timing events were controlled mechanically. Inside your injectors, barely a thimbleful of oil has the job of lubricating the spool valve, piston, springs and o-rings.
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