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Direct Injection Systems

GASOLINE DIRECT INJECTION SYSTEMS MAY REQUIRE SERVICING

If the car you are driving now doesn’t have Gasoline Direct Injection (GDI) your next one probably will. The following 2.5 minute video illustrates how fuel systems have evolved to gasoline direct injection (GDI), http://www.youtube.com/watch?v=KIVdPaTSot8.

Undesirable carbon buildup on the intake valves is occurring in many current models with GDI systems. This is apparently caused by accumulating deposits that the port injection systems, which GDI replaces, tended to wash off the intake valves. With GDI however, those deposits build up on the back side of the intake valves, getting baked on, or carbonized, which frequently results in poor running and illumination of the check engine light.

We have found that performing a fuel injection service or intake service will not break down those carbon deposits. So we have purchased specialized equipment to perform effective carbon removal from intake valves.

If you suspect that your car has this problem please call for an appointment so we can evaluate your symptoms. The photographs below show before and after cleaning of the carbon buildup on intake valves in a Mini Cooper which was recently done in our shop.

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