How to replace knock sensors in 1992 Mazda 929

Tiny
MONTMAN65
  • 1992 MAZDA 929
  • 118,000 MILES

The check engine light comes on after the car runs for 2 or 3 miles. I ran a diagnostic test on it came up with five flashes it says I have two knock sensor on my car one for each side how do I move them and how do I know which side is out

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Sunday, November 20th, 2011 AT 8:54 AM

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Tiny
HMAC300
  • EXPERT
  • 45,719 POSTS

If you had a better machine it wold tell you which side, bu tthe cheaper ones dont. Most pro models do. They unscrew like a bolt or have abolt holding them in. They may be in awater jacket however so watch for coolant leaks.

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Sunday, November 20th, 2011 AT 3:20 PM

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