I HAVE NO SPARK ON THE PLUGS I TRCED THE WIRING ...

  • Tiny
  • francoispienaar
  • 2000 Mazda Etude
  • 180,000 miles

I have no spark on the plugs I trced the wiring for open cercate and I checed the fuses none blown I dont know if it has a relay for the ecu controle

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Wednesday, October 31st, 2012 AT 8:49 AM

6 Replies

  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

Which engine do you have? Did you check for battery voltage to the coil packs? Are ther any trouble codes?

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Wednesday, October 31st, 2012 AT 9:04 AM
  • Tiny
  • francoispienaar
  • Member

I went through the wiring again and I finded a blown fuse so it was por surch and now I have cuurent to the coilpack but still no spark on the spark plugs. On the plug that goes into the coil pack is three wires the one I see is earth and the other positive so than what is the middle wire for and how does it opperate

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Wednesday, October 31st, 2012 AT 1:13 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

That should be for the Engine Computer to signal the coil to fire.
Did you check for trouble codes?
Which engine do you have?
Have you checked the crank sensor?

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Wednesday, October 31st, 2012 AT 4:57 PM
  • Tiny
  • francoispienaar
  • Member

It doesen show any codes on the cluster
it is the zm3 engine
i traced the middle wire and it goes to the ecu
now can it be that I can suspect the ecu
cause I have put other sensors on the cranck and cam sensors and I put even other coil packs on but still it just swing strongly with out spark
but I have contenuiaty/current to the coil packs
if I put a wire from the wire that goes to the ecu on the coil pack to the post of the battry it sent spark throuth to the spark plug but it doesnt start like that

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Thursday, November 1st, 2012 AT 9:20 AM
  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

If the crabk sensor is godd, the only problem causing the no spark wuld be the PCM. If you have immobilizer system ensure it is not armed.

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Thursday, November 1st, 2012 AT 12:12 PM
  • Tiny
  • MOTUBATSE
  • Member

I dont have spark on mazda etude 1.6 what must I do

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Sunday, August 10th, 2014 AT 12:30 PM

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