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240 Landmarks TopGasoline and Natural Gas Engine > Electronically controlled gasoline injection (ECGI)
 Electronically controlled gasoline injection (ECGI)
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(1) Bosch's electronic fuel injection system, called D-Jetronic, was a speed density system. It adjusted fuel in accordance with the pressure in the intake tube. On the other hand, L-Jetronic was a mass flow system, which directly calculated the air volume taken for fuel adjustment.
(2) The Isuzu 117 Coupe was the first application of D-Jetronic in Japan. This electronically controlled gasoline injection system (ECCG) was installed in the G161WE gasoline engine for commercialization. L-Jetronic was then installed in the G180WE engine to allow it to conform to the emission gas regulations of 1976. Subsequently, the G200WE engine conformed to the emission gas regulations of 1978.
(3) The 117 Coupe engine specifications installed with D- and L-Jetronic ECGI are as follows.
⇒Insert table.
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Storage location:ISUZU MOTORS LIMITED (3-25-1 Tono-machi, Kawasaki-ku, Kawasaki-shi 210-8524)
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Year manufactured:1971
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Manufacturer:Isuzu Motors Limited
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Classification:Literature
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Current status:In storage: not open to the public
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Model / Manufacture
Model:ECGI
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Company name:Isuzu Motors Limited
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Familiar name:ECGI
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Installation model:Isuzu 117 Coupe (G161WE engine)
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Year of manufacture:1971
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Designed by:Junzo Kuroyanagi (representative)
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Specification
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Performance
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Device
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Points of interest, topicality:・ Predicting progress in car electronics, Isuzu applied such technologies to automobiles, which was a challenging approach at the time. Then ECGI was commercialized for the first time in Japan in the G161EW engine mounted in the Isuzu 117 Coupe.
・It conformed to regulations concerning emission gases, which were becoming an issue in Japan as well as the U.S.
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Features:・ This was a fuel system capable of accurately controlling the air-fuel ratio, which was not possible with a conventional carburetor.
・It enabled emissions to be lowered while improving output and drivability.
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Reference materials:Eiichi Kawai, Shogo Yamamoto, Shuji Mizutani, "Dai 5 Sho Ka Erekutoronikusu", Automobile Engineering Completion, Vol. 10, pp. 260-263, May 1980
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