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Using the lab scope

Using the lab scope . in Engine Performance. Analog. signal devices. VREF. TPS. Normal signal. TPS. Coolant Temp. Map. Chrysler Analog. Bosch Airflow Meter. Analog. AC signal devices. AC generator. VSS. Vehicle Speed Sensor. ABS. AC generator (wheel speed). Knock. Sensor

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Using the lab scope

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  1. Using the lab scope in Engine Performance

  2. Analog signal devices

  3. VREF

  4. TPS Normal signal

  5. TPS

  6. Coolant Temp

  7. Map Chrysler Analog

  8. BoschAirflowMeter Analog

  9. AC signal devices

  10. ACgenerator

  11. VSS Vehicle Speed Sensor

  12. ABS AC generator (wheel speed)

  13. Knock Sensor piezoelectric crystal (stress)

  14. How sensitive? • tightened to specs • sensitive • tighter • more sensitive • Teflon tape on threads • less sensitive Knock Knock

  15. Fixed Pulse width Sensors

  16. Frayed wire to the sensor

  17. Ford Map Digital sensor

  18. MAF

  19. Timing signal from computer to the ignition module.

  20. Varied pulse width signal generators

  21. Ignition Dwell varies

  22. O2 Sensors

  23. GM TBI - Idle 2500 rpm

  24. GM MPI- Idle 2500 rpm

  25. Actuators

  26. MC solonoid Dwell varies

  27. Injector Saturated switch

  28. Injector Peak and hold (Bosch) European Asian 80’s

  29. Injector GM - TBI Peak and hold

  30. Injector Bosch PNP Japanese.

  31. Injector PNP Jeep Chrysler/Jeep pre-88 early Europe

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