1993 Daihatsu Hijet - Engine Light

Daihatsu Hijet is a microvan and pickup truck produced by the Japanese automaker Daihatsu. Despite the similarities between the Hijet name and Toyota's naming scheme for its trucks and vans (Hiace and Hilux), the name "Hijet" has been in use for Daihatsu's Kei trucks and vans since 1960, over two decades before Toyota took control. "Hijet", when transliterated into Japanese, is very similar to "Midget", one of Daihatsu's other mini-trucks. The Hijet competes in Japan with the Honda Acty, Subaru Sambar, Mitsubishi Minicab, and the Suzuki Carry. Mechanic and specialist Nick Carangi states that the common issue with the check engine light is a sensor defect. Does any one know where I can purchase a replacement?