Page 4 - air-fuel-ratio-gauge
P. 4

Section 4

                                         Troubleshooting



                       !  The meter display does not light-Check all the connections
                          and make sure the wires are not reversed.

                       !  The meter Readout cycles up and down at idle and cruise-
                          This is perfectly normal and will continue to do this until
                          wide-open throttle at which point the oxygen sensor is hot
                          and starts to put out a steady voltage.

                       !  The meter does not stay steady under wide-open throttle-
                          Check and make sure your oxygen sensor is functioning
                          properly and that the meter is connected to the output of the

                          oxygen sensor.
                       !  The meter does not stay steady under wide-open throttle-
                          Some of the one & two wire oxygen sensors (Non heated)
                          may take a while to warm up under part throttle driving.

                          Tuning will be best if done on the highway to really get the
                          sensor hot. Readings will not be stable until the sensor heats

                          up. Go on the highway then do full throttle and check your
                          reading.
                       !  The meter reads “1.   “- You have accidentally hooked the
                          meters “Black” signal wire to the 12volt heater wire coming

                          out of the oxygen sensor.
                          The meter reads “.000“- You have accidentally hooked the
                          meters signal wire to the oxygen sensors ground wire.






                                               Display orientation



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