Volvo

Fault Condition: The Pedal Message code will set when the Engine Management System (EMS) Module has lost the Accelerator Pedal Sensor Signal from the Vehicle Electronic Control Unit (VECU). Possible repairs: 1) Verify that code PID 91 is set. If code PID 91 is not set, wiggle the harness and connectors to try to set the code. Visually inspect the VECU connectors and wires for poor connections.2) If code MID 144 PID 91 is set, repair code MID 144 PID 91 and retest the system. If only MID 128 PID 91 is set, the Vehicle Electronic Control Unit (VECU) may...

Fault Condition: The Electronic Malfunction Lamp (EML) will illuminate when the Fuel Pressure (FP) Sensor signal line voltage is less than 0.3 volts or greater than 4.75 volts. Ifthe signal line voltage returns to between 0.3 volts and 4.75 volts the fault will become inactive. Possible repairs: Turn the ignition key OFF first. 1) Disconnect Engine Management System (EMS) Module connectors B. Check for continuity between Fuel Pressure (FP) Sensor harness connector pin 2 (signal line) and a good ground. If continuity exists, locate and repair the short circuit to ground.2) Disconnect Engine Management System (EMS) Module connector B. Check...

Fault Condition: The Electronic Malfunction Lamp (EML) will illuminate when the Fuel Pressure (FP) Sensor signal line voltage is less than 0.3 volts or greater than 4.75 volts. Ifthe signal line voltage returns to between 0.3 volts and 4.75 volts the fault will become inactive. Possible repairs: Turn the ignition key OFF first. 1) Disconnect Engine Management System (EMS) Module connectors B. Check for continuity between Fuel Pressure (FP) Sensor harness connector pin 2 (signal line) and a good ground. If continuity exists, locate and repair the short circuit to ground.2) Disconnect Engine Management System (EMS) Module connector B. Check...

Fault Condition: The Electronic Malfunction Lamp (EML) will illuminate when the Fuel Pressure (FP) Sensor signal line voltage is less than 0.3 volts or greater than 4.75 volts. If the signal line voltage returns to between 0.3 volts and 4.75 volts the fault will become inactive. Note: FMI 7 will set if the fuel pressure drops below:14.5 psi (100 kPa) at 800 rpm29 psi (200 kPa) at 1000 rpm36.2 psi (250 kPa) at 1200 rpm43.5 psi (300 kPa) at 1400 rpmNominal Fuel Pressure (FP) Sensor Parameters: 0.3–4.75 Volts. Possible repairs: Turn the ignition key OFF first. 1) Disconnect Engine Management...

Fault Condition: This fault will become active when the EMS Module detects that the Water In Fuel Filter supply voltage is above or below preset specifications. Actual water in the fuel filter will not produce a fault. Possible repairs: Turn the ignition key OFF first. 1) Disconnect EMS Module connector B and the Water In Fuel Filter (WIFF) Sensor connector. Measure for continuity between EMS Module harness connector B pin 8 and pin 3 of the WIFF Sensor harness connector.If there is NO continuity, repair the open in the harness reference voltage line.2) Disconnect EMS Module connector B and the...