Where the fuck are you guys getting your information?! lol, Isuzu made the 4xe1 engine. Its design has been around since the early/mid 80's. Not that it helps my sale out at all. The only other person who had involvement in the manufacturing and designing of Isuzu cars, was General Motors. Hence the Delco ignition system, IAC, MAP Sensor, and GM ECU.
GEO was a fake brand created to "Americanize" poorly selling Japanese cars during the 90's. Geo Metro-SUZUKI SWIFT, Geo Prism-TOYOTA COROLLA, Geo Storm-ISUZU IMPULSE etc... In case you were born under a rock or bought into their marketing. BTW, Geo Storms outsold Isuzu Impulses.