sentences:  This engine was standard on GL models although very few were sold and many owners of the 3.2-litre found lacklustre torque and the resultant driving behaviour caused increased fuel consumption versus the 3.9.Ford discontinued the engine circa December 1988.Initially an extra cost option on the Falcon GL, and standard on Falcon S and Fairmont, the 3.9-litre EFI (commonly referred to as the CFI or TBI engine) increased stroke from 79 mm to 99.31 mm while bore remained at 91.86 mm.