What displacement has the code yd22ddt?
CREATE TABLE "engine_reference" (
  "code" text,
  "vehicle" text,
  "year" text,
  "displacement" text,
  "bore" text,
  "stroke" text,
  "c_r" text,
  "max_power" text
);
SELECT "displacement" FROM "engine_reference" WHERE "code"='yd22ddt';