Adding a Knock Sensor - Ranger-Forums - The Ultimate Ford Ranger Resource

4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 10-29-2009
leadfoot's Avatar
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Adding a Knock Sensor

I have the SCT pro tuning software and X-cal III but the 4.0 OHV does not have a knock sensor and to take full advantage of increasing timing I would like to add one.

I came across this knock sensor on Summit Racing:
MSD Ignition 8964 - MSD Engine Knock Alert Systems - Overview -

I have a few questions about this though.
How do you mount it, I don't really feel like taking the engine apart and replacing gaskets to tap a hole?

How effective would an aftermarket one work?

Are there any other aftermarket knock sensors?

Does the white box mount to an OBD1 or OBD2 plug or is it it's own entity.
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Old 10-29-2009
whippersnapper02's Avatar
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I'd pm Bob on this.
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