Ford 5.0 Wiring

This engine was introduced in 1985 as a speed density, multi-port fuel injection system. It used an EEC IV engine control computer for engine management. The 5.0 HO engine was used in the Mustang while the regular 5.0 was used in the T-Bird, Crown Victoria, Cougar and Lincoln Town Cars.

The major difference is the injectors are larger in the HO engines combined with a different cam. In 1986 the HO engine was introduced in light trucks. In 1988 Ford switched from speed density in California to mass air flow on the Mustang 5.0 engine and the following year (89) all 5.0 engines in Mustangs were mass air flow, The 5.0 engine in Ford's other vehicles remained speed density. The AOD, AOD-E and manual transmissions were used on this engine. The C4 transmission can also be used.