Posted by Will Sparks on Tue, Mar 02, 2010 @ 02:11 PM
There are 2 basic types of fuel injection service:1. The first type involves adding a cleaner to the fuel tank. The cleaner is then pumped by the fuel pump to the injector's and the intake valves. In my opinion, there is two basic problems with this system. The first problem is the cleaner will remove any fuel deposits formed in the tank. These deposits could possibly damage the fuel pump. Secondly, it is difficult to control the concentration of the cleaner because the amount of the fuel in the tank varies.
2. The second type of service involve disabling the fuel pump and using the pump on the tool to run the car using the cleaner. This eliminates possible damage to the fuel pump and allows more precise control of the concentration of the cleaner. Another benefit of this type of system is it allows testing of the fuel pump pressure and volume, as well as a leak down check on the fuel system.
REMEMBER THIS SERVICE WORKS ONLY AS WELL AS THE QUALITY OF THE CLEANER!
Our patented fuel injection cleaner is the crown jewel of this service. This fuel injection cleaner's unparalleled results are the benchmark of the industry.
Fuel needs to be in the form of VAPOR to burn completely. The best way to assure this happens is to spray the fuel in the smallest droplets possible. The fuel pressure and volume, along with the injector design are responsible for this action. Additionally, the manufacturer designs the cylinder head so the fuel sprays directly on to the intake valve., which is very hot. This promotes complete vaporization of the fuel. This results in:
Carbon deposits normally occur thru the combustion process. These deposits can reduce the quantity of fuel, as well as the vaporization of the fuel.
The top injector has carbon deposits that reduce both the volume and vaporization of the fuel.
The bottom injector functions properly after cleaning
The intake valve on the left has carbon deposits . These deposits prevent air and fuel from properly entering the combustion chamber. These deposits inhibit proper fuel vaporization.The valve on the right has been cleaned.
It is critical the throttle body and Idle air passage be free of carbon. The throttle body allows a specifically calibrated quanity of air to flow past the throttle plates at idle. The computerized engine controls uses a small electric motor to allow more or less air to bypass the throttle plates through the idle air passage. If carbon blocks the flow of air, it may cause poor throttle response and/or rough idle.
Finally, a service worth considering, is the cleaning of the mass air flow sensor. This service usually costs extra, but can be very worthwile on vehicles with higher mileage. The computerized engine controls uses the mass air flow sensor's signal to control fuel delivery. If the sensor is dirty, it will not respond as rapidly as it should resulting in poor engine performance and reduced fuel economy.
I hope you found this article informative. Thanks for your time. If you have questions about our fuel injection services or need car maintenance we welcome your questions.