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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-980 DTC SET CONDITIONS . Check Condition • Ignition switch is "ON" position. • Accelerator pedal position sensor (main) output voltage is between 0.6 and 4.8 volts. • Accelerator pedal position sensor (sub) output voltage is between 0.2 and 4.8 volts. • Change of accelerator pedal position sensor (sub) output voltage per 25 milliseconds is lower Judgement Criteria • Voltage obtained with the formula given below is 1.0 volt or higher for 0.2 second: [accelerator − [accelerator pedal position sensor (sub) output . OBD-II DRIVE CYCLE PATTERN None. . TROUBLESHOOTING HINTS (The most • Accelerator pedal position sensor failed. • Harness damage in accelerator pedal position sensor circuit or connector damage. • PCM failed. AK303911 START END NO NO YES YES YES NO MALFUNCTION GOOD CONTINUOUS FAILURE FOR 0.2secs MONITORING CONDITIONS APS (MAIN) - {APS (SUB) +0.3V} > =1.0V |