My mechanic puts a wire in the connector to the pc and a single connector and reads the codes manualy. Does anyone have a diagram how to do this and a list of codes for my 90 ranger? I have done it before on a Probe but I had a diagram excatly which place to put it. I`m getting tired of driving back and forth. One of the codes was 88 and I can`t remember what it is?

 

Here is the method and the code list. It will work for OBD Rangers through 1994.

http://www.troublecodes.net/Ford/

 

Geat thanks I have three codes -
34
EGR Valve Opening Not Detected (2.3L OHC & 3.8L CFI)
R

Defective EGR Pressure Transducer Sensor (1.9L CFI, 2.3L HSC EFI & 3.0L)
C/O/R

EGR On/Off Control (2.3L Turbo)
R


41
System Indicates Lean
R

No HO2S Switching Detected
C

and
88
Loss Of Dual Plug Input Control
C

Shift Solenoid 3/4–4/3 (2.3 Turbo)
O

Integrated Relay Control Module (2.5 L HSC & 3.8L EFI)
O

Electric Drive Fan Circuit Failure (2.5L, 3.0L SHO & 3.8L SFI)
O

Throttle Kicker Fault (5.0L)
—

C—Continuous memory code.
O—Key On, engine Off self test code.
R—Engine running self test code.