- #HOW TO READ 1991 FORD ENGINE CODES HOW TO#
- #HOW TO READ 1991 FORD ENGINE CODES MANUALS#
- #HOW TO READ 1991 FORD ENGINE CODES MANUAL#
With the ignition in the OFF position, connect the leads of the analog voltmeter as shown below, positive lead to terminal 1 and negative lead to terminal 12. Remove the cover, if present, from the diagnostic connector. The only tools you need to read the codes on the 1991 through 1993 models are an analog voltmeter and two wire jumpers with 1" clips on at least one end of each. Turning the ignition off does not erase a code. The ECU stores a code for each irregularity found until either battery power is removed from the ECU (by pulling a fuse or removing a battery cable) or the code is erased using a scanning tool.
#HOW TO READ 1991 FORD ENGINE CODES MANUALS#
These irregularities are explained in detail in the service manuals in the "MPI System" section. It performs checks on these signals, either continuously or under specific conditions, to identify irregularities.
The engine control unit (ECU) monitors many of the input and output signals that it receives.
#HOW TO READ 1991 FORD ENGINE CODES MANUAL#
Use the Diagnosis Chart from the appropriate-year service manual to interpret the patterns. However, the codes can be read only using a MUTII or other OBDII scanning tool. For 1996 and newer models, the diagnostic port is in the same location. According to the service manual, the codes can be read by grounding terminal 1, turning the ignition on (do not start the engine), and observing the pattern of flashes of the check engine (CE) light on the dash. For the correct identification of all terminals in the 1991-1993 diagnostic connector, see my web page 2-diagconn.htm.įor 19 models, the diagnostic port was re-located to under dash knee protector near the driver's right leg. 13A-50) does identify the correct ground terminal. The service manual for the 1992-1996 3000GT (p. 14-98), the service manual may incorrectly identify the ground terminal in the diagnostic connector. Please note that, at least in my 1992 Dodge Stealth service manual (p. Please read all of the instructions before beginning this procedure and refer to the service manual for additional information.
#HOW TO READ 1991 FORD ENGINE CODES HOW TO#
These instructions supplement the service manual's instructions on how to read the diagnostic codes on 1991 through 1993 Mitsubishi 3000GT and Dodge Stealth cars. Stealth 316 - Reading Diagnostic Codes - 1991-1993 3S models Reading Diagnostic Codes on theġ991-1993 Mitsubishi 3000GT/Dodge Stealth
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