88173 Mercury TAB, COIL SCREW

Table 1
Diagnostic Codes Table    
Code and Description    Conditions which Generate this Code    System Response    
100-3 Engine Oil Pressure Sensor voltage above normal     The Electronic Control Module (ECM) detects signal voltage that is above normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
500 kPa (75 psi).    
100-4 Engine Oil Pressure Sensor voltage below normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
110-3 Engine Coolant Temperature Sensor voltage above normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
−40 °C (−40 °F).    
110-4 Engine Coolant Temperature Sensor voltage below normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
−40 °C (−40 °F).    
164-3 Injector Actuation Pressure voltage above normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
12 MPa (1741 psi).
The current to the IAPCV is set to 0.23 Amp.
The fuel limit is set to a predetermined value.    
164-4 Injector Actuation Pressure voltage below normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
The ECM may be faulty.     The code is logged.
The value of the parameter is set to a pressure of
12 MPa (1741 psi).    
172-3 Intake Manifold Air Temperature Sensor voltage above normal     The engine's Electronic Control Module (ECM) detects signal voltage that is more than 4.8 VDC for one second. The ECM has been powered for at least three seconds.     The code is logged. The value of the parameter is set to zero.    
172-4 Intake Manifold Air Temperature Sensor voltage below normall     The ECM detects signal voltage that is less than 0.2 VDC for one second. The ECM has been powered for at least three seconds.    
174-3 Fuel Temperature Sensor voltage above normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
30 °C (86 °F).    
174-4 Fuel Temperature Sensor voltage below normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
30 °C (86 °F).    
175-3 Engine Oil Temperature Sensor voltage above normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
90 °C (194 °F).    
175-4 Engine Oil Temperature Sensor voltage below normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
90 °C (194 °F).    
273-0 Turbocharger Outlet Pressure Sensor high - most severe (3)     The ECM detects the turbocharger outlet pressure signal above
200 kPa (29 psi). The engine speed is within 50 rpm of low idle for 5 seconds.     The code is logged.
The value of the parameter is set to a pressure of
0.0 kPa (0.0 psi).    
273-3 Turbocharger Outlet Pressure Sensor voltage above normal     The ECM detects signal voltage that is above 4.8 VDC (open or short to battery voltage) for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
0.0 kPa (0.0 psi).    
273-4 Turbocharger Outlet Pressure Sensor voltage below normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
0.0 kPa (0.0 psi).    
274-3 Atmospheric Pressure Sensor voltage above normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a pressure of
45 kPa (7 psi).    
274-4 Atmospheric Pressure Sensor voltage below normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
275-3 Right Turbocharger Inlet Pressure Sensor voltage above normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for three seconds.     The code is logged.
The value of the parameter is set to a default value.    
275-4 Right Turbocharger Inlet Pressure Sensor voltage below normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    System OperationUse this procedure to troubleshoot any suspect problems with the following pressure sensors:
Engine oil pressure sensor
Atmospheric pressure sensor
Turbocharger outlet pressure sensor
Injection actuation pressure sensorThe ECM performs an automatic calibration of these sensors whenever the ECM is powered and the engine is off for at least five seconds. During an automatic calibration, the ECM calibrates pressure sensors to the value of the atmospheric pressure sensor and against an acceptable offset pressure range.Use this procedure to troubleshoot any suspect problems with the following temperature sensors:
Engine oil temperature sensor
Fuel temperature sensor
Coolant temperature sensorThe supply voltage is routed to terminal A of