Engine General Information and Diagnosis 2

Inspection of ECM and Its Circuits







7. Reference waveform No. 7
Engine torque reduction signal (1) from TCM







8. Reference waveform No. 8
Engine torque reduction signal from TCM







9. Reference waveform No. 9
VSS signal (1) at 64 km/h (40 mil/h) for A/T vehicle







10. Reference waveform No. 10
VSS signal (1) at 64 km/h (40 mil/h) for A/T vehicle







11. Reference waveform No. 11
Serial data line for TCM







12. Reference waveform No. 12
No. 3 Fuel injector signal at engine idling







13. Reference waveform No. 13
Fuel injector signal (1) at engine idling







14. Reference waveform No. 14
No. 4 Fuel injector signal (2) at engine idling







15. Reference waveform No. 15
EGR valve No. 1 coil (2) and No. 2 coil (1) signal







16. Reference waveform No. 16
Heated oxygen sensor signal at engine idling







17. Reference waveform No. 17
EVAP canister purge valve signal







18. Reference waveform No. 18
No. 2 Fuel injector signal (2) at engine idling







19. Reference waveform No. 19
CMP sensor signal at engine idling







20. Reference waveform No. 20
CMP sensor signal at engine idling







21. Reference waveform No. 21
EGR valve No. 3 coil (1) and No. 4 coil (2) signal







22. Reference waveform No. 22
Heated oxygen sensor heater signal







23. Reference waveform No. 23
No. 1 Fuel injector signal (2) at engine idling







24. Reference waveform No. 24
ISC valve signal







25. Reference waveform No. 25
No. 3 ignition coil signal (2) at engine idling







26. Reference waveform No. 26
Ignition coil signal (2) at engine idling







27. Reference waveform No. 27
CKP sensor signal (2) at engine idling







28. Reference waveform No. 28
CKP sensor (1) signal at engine idling







29. Reference waveform No. 29
Knock sensor signal at engine speed 4000 rpm







30. Reference waveform No. 30
Knock sensor signal at engine speed 4000 rpm







31. Reference waveform No. 31
No. 4 ignition coil signal (2) at engine idling







32. Reference waveform No. 32
No. 1 ignition coil signal (2) at engine idling







33. Reference waveform No. 33
No. 2 ignition coil signal (2) at engine idling







34. Reference waveform No. 34
Engine torque signal to TCM







35. Reference waveform No. 35
Engine torque signal to TCM







36. Reference waveform No. 36
Manifold absolute pressure sensor signal (1) at engine racing







37. Reference waveform No. 37
Mass air flow sensor signal (1) at engine racing