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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 10, 2011, 11:19 AM
Post #1 of 2
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ION SENSING IGNITION
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2000 Honda Passport or Isuzu Rodeo 3.2L
I really don't have detailed knowledge about the ION ignition systems or the physics that is involved, but I ran into a thread were the OP was looking for the knock sensor.
My source data shows the labor time and part cost for a knock sensor, but no procedure or description of the part. I looked at the wiring diagram for the ION module and the PCM. It appears that the ION module has the capability of detecting knocks and sending a signal to the PCM via toggling a transistor in a pull down circuit.
Is this true that ION ignition systems on these vehicles don't utilize a physical knock sensor? Any information would be greatly appreciated.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 10, 2011, 11:21 AM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 10, 2011, 12:14 PM
Post #2 of 2
(5488 views)
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Re: ION SENSING IGNITION
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It appears that the ION module is simply an ignition module. It turns the COPs off and on with commands from the PCM.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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