Follow the large bundle of wires along the firewall from behind the engine towards the passenger side. Remove two nuts in the upper left of the firewall. The EEC is in the cavity between the firewall and the dash above the glovebox.
A 1990 Ford Ranger is OBD I / EEC IV - if that's what you are asking
The EEC TEST connection should be in the engine compartment by the Power Distribution Box in a 1995 Ford Ranger ( EEC - IV , OBD I )
On a 1994 Ford Ranger ( which is OBD I , EEC IV ) should have an EEC TEST connection in the engine compartment ( P.S. I'm not a mechanic / technician )
A 1994 Ford Ranger is OBD I / EEC IV and has an EEC TEST connection in the engine compartment by the power distribution box In 1996 , the Ford Ranger changed from OBD I / EEC IV to OBD II / EEC V and has a Data Link Connector in the dash , below the steering wheel , covered by a small removable plastic panel
Actually , the 1994 Ford Crown Victoria is OBD I ( EEC IV ) so there will be an EEC TEST connection in the engine compartment
No , OBD II came out in 1996 There should be an EEC TEST connection in your engine compartment , near the battery for your OBD I / EEC IV system
There are two relays by the fuse block on the left side of the engine compartment. I believe the green one is the EEC relay. One may be located under the fuse block. Pull the 30 amp fuse for the EEC, locate on lid of fuse block, the relay should click when the battery cable is disconnected.
The EEC TEST connection is in your engine compartment by the power distribution box ( OBD I / EEC IV )
It should be in your engine compartment , on the battery side , near your power distribution box - it will show EEC TEST on the plastic cover
According to my Chilton repair manual the powertrain control module (PCM) for 1993 + 1994 Ford Rangers / Explorers is mounted low on the firewall , near the drivers side fender , in the engine compartment . The EEC test port is by your power distribution box in the engine compartment (OBD I / EEC IV)
eec relay fuse under hoodType your answer here...
Click on the link below Click on Tech Library scan down to " Computer " EEC IV diagnostics