so im trying to figure out exactly what my new 89 has in it
i have an auto trany that has 1st drive and overdrive, which trany would this be?
the engine is the 5.0 efi is the bronco efi throttle body injected?
AOD - E4OD Identification; If the shifter has a
P-R-N-OD-D-1 pattern, the transmission must be an AOD (If a 1989-1993 truck has an Overdrive Cancel Switch and a P-R-N-OD-2-1 shifter pattern, then it is equipped with an E4OD transmission
Source: by Baumann Electronic Controls, LLC
Prob. an AOD;
so,
Operating Guide Section of Owners Manual in an 88, Page 1 by Jem270 at SuperMotors.net
click NEXT for page 2
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Not TB Inj; Fuel Injectors at used for each cylinder
In 1986, Ford switched to EFI on 5.0 Bronco engines. 1987 brought the first EFI 5.8. The EFI Ford used for almost all Broncos is what is called speed density. Speed density EFI uses a manifold absolute pressure sensor (MAP), a throttle position sensor (TPS), an air intake temperature sender (ACT) , and the knowledge of the factory intake/exhaust tract which gives your engine certain volumetric efficiencies over it's RPM range. This allows the EEC-IV (Electronic Engine Control IV) to determine the mass (different than volume) of air coming into your engine, and hence the amount of fuel needed to go with this air. Speed density EFI also uses what is called bank fire injection. 4 injector are fired at one time on each side of the engine (only 2 wires
for firing injectors from EEC-IV)...."--
GL with it!
