Where is the coolant gauge on a Ford Mustang?
Lower left is adjusted with the ignition off to find true “zero”-“E” on a fuel gauge or “L” on a coolant temperature or oil pressure gauge. Upper right is adjusted with the ignition on with five volts of power to the gauge.
How does the air pressure sensor work on a Mustang?
It also uses the barometric air pressure reading at key-on (since the intake manifold will have the same pressure as the atmosphere) to be used by the EEC later. The MAP sensor is actually digital so at idle it will send a frequency at around 92Hz and at WOT it would be at around 159Hz.
What is the temperature sending unit in a car?
by K.K. Lowell. The temperature sending unit, more properly known as a temperature sensor, is one of the most important sensors in your car. It is the sensor that tells the computer when the engine has warmed up sufficiently for the computer to pay attention to the many other sensors on the engine and exhaust.
What happens to the EFI sensor on a Mustang 5.0?
When the 5.0 is running lean, the exhaust gas will have more oxygen so the O2 sensor will generate less voltage. If the engine is running rich, it will have less oxygen and the O2 sensor will produce a higher voltage. As the sensors age, the voltage range drops and the voltage change lags behind the changes happening in the exhaust gas/oxygen.
Where is the code scanner on a Mustang 86-93?
Plugin the code scanner to VIP/DLC connector harness in the engine bay (right-hand, driver side for 86-93) and read out any error codes, if there are any. Listed below are the possible error codes thrown by the Mustang EEC-IV computer.
What kind of Fuse does a 1993 Mustang have?
Repair diagrams for model 1979-1993 Ford Mustang, including fuse panel diagram, wiring schematic, owners manual, fuse & relay location identification. V6 V8 GT Cobra 5.0L 2.3L 351
What are the air pressure sensors on a fox mustang?
When Ford went to MAF on the 89 fox Mustang (88 in California), they replaced the MAP function with measuring barometric air pressure. The full-time BAP sensors had a small collar attached to the atmospheric vent. The BAP will affect air/fuel ratios and EGR flow.
What does the ECT sensor on a Mustang tell you?
The ECT sensor tells the computer if the engine is essentially cold, warm or hot. To ensure the sensor is getting the proper voltage from the EEC make sure the signal wire is getting 5 volts. A faulty ECT can throw code 21 which means reading temps less than 50 or more than 250 (engine off) and less than 180 or more than 250 (engine running).