Komatsu FG30SHT-14:
Cranks no start

Cranks has no spark. Checked the basics and found nothing wrong.i did install both crank and cam sensors.still no spark.
Checked ECU connections for contaminated terminals not bad.also oil light does go out when cranking telling me the switch is good.
  • Posted 20 Jun 2024 23:33
  • Discussion started by Want2race
  • Florida, United States
Wayne Jenkins
Showing items 1 - 4 of 4 results.
On the crank sensor when you turn the key on you said 0n the signal wire you are getting a half a volt that is not correct depending where the ring is to the sensor you should see around battery voltage and when cranking it could vary but not ahalf a volt check your wire back to the ecm make sure it is good and l know you put the sensor in but was it factory or aftermarket l have seen bad sensors aftermarket.
  • Posted 26 Jun 2024 05:12
  • Reply by Scott_
  • Pennsylvania, United States
Scott
Sorry yes the light comes on.it blinks steady.
  • Posted 25 Jun 2024 22:36
  • Reply by Want2race
  • Florida, United States
Wayne Jenkins
I checked signals and we have
White with red 12 plus
Black Good neg
Green less than half a volt
  • Posted 25 Jun 2024 03:42
  • Reply by Want2race
  • Florida, United States
Wayne Jenkins
First are there any codes in the truck does the service light come on when you turn the key on second did you check to see if you have power to the crank sensor. and cam sensor.
  • Posted 22 Jun 2024 02:54
  • Reply by Scott_
  • Pennsylvania, United States
Scott

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