We've just replace the engine in a 2006 2.4l Rav 4. Replacement engine uses all the (tested) sensors from the old engine. Ran all the continuity / voltage checks for the ignition circuit and all are ok; Crank sensor and Cam sensor check ok. However, there is a constant 4.7volt signal between all ITG terminals and ground ie ignition coil connector terminals 2 and 4. We have re-set the ECM and no codes are showing. There is a smell of gasoline so we assume the injectors are working. Question: What could cause the ECM to send a constant 4.7 volt signal to all ignition coils constantly? Thanks in advance.

  • What does ITG stand for? I did a google search and couldn’t find anything. Is that the coil pack?
    – HandyHowie
    Jan 22, 2022 at 9:21
  • Are the ignition coils connected when you read this voltage? It may be a voltage that is used to detect if the coil is open circuit.
    – HandyHowie
    Jan 22, 2022 at 9:24
  • Thanks - IGT stands for Ignition Timing Signal (see here toyotaguru.us/engine-control-systems/igt-signal.html). To answer your second question - no the Ignition coils are not connected.
    – digitalpi
    Jan 24, 2022 at 1:18


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