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Home >> Ford >> 1986 >> Mustang SVO >> Repair and Diagnosis >> Engine Performance >> System >> 2.3L Feedback Carburetor EEC IV Testing >> Circuit Tests >> Test SS - System Check

Test SS - System Check

  1. ISC Check. Attempt to start engine at part throttle. If engine runs only at part throttle, go to step 3). If engine does not run, go to step 2).
  2. MAP Check. Turn key off and disconnect MAP sensor. Connect MAP tester between harness and MAP sensor. Connect banana plugs of tester into DVOM and set DVOM on 20-volt scale. Turn key on and measure sensor output voltage while cranking engine. If DVOM reading does not decrease from specified range, go to TEST H - MAP SENSOR  , step 13). If DVOM reading decreases from specified range, go to next step.
MAP VOLTAGE OUTPUT

Elevation (Ft.) Voltage Output (Volts)
0 1.55-1.63
1000 1.52-1.60
2000 1.49-1.57
3000 1.46-1.54
4000 1.43-1.51
5000 1.40-1.48
6000 1.37-1.45
7000 1.35-1.43