Knock Sensor

2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Knock Sensor
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Mazda Tribute, 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, and 2002 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
KNOCK SENSOR (KS) RESISTANCE

Temperature - °F (°C) (1) Ohms
Miata, Millenia, MPV & 626
68 (20) 560K
Protege & Protege5
68 (20) 532-588K
B2300, B3000, B4000 & Tribute
68 (20) 4390-5350K
(1) Measure resistance between terminal "A" (White wire on Miata, Millenia 2.3L and 626) and KS body. On all models except Miata, Millenia and 626, measure resistance between KS terminals. On Millenia 2.5L, measure between KS terminal and body.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.