Hyster S40FTS:
no spark gm2400 engine

any help how to check voltage at coil ? what should i find ? and is there any relays that would affect the voltage there i have changed oil pressure sender and cam sensor still no spark ?
  • Posted 13 Aug 2019 03:22
  • Discussion started by stillworkin
  • New York, United States
Showing items 1 - 7 of 7 results.
No it feeds the o2 sensor and the fuel injectors and the coil.
  • Posted 14 Aug 2019 07:25
  • Reply by BREWSKI
  • Nebraska, United States
BREWSKI
will give it a go tomorrow and will let you know what i find ? do you know if that would feed the ecu? thanks
  • Posted 14 Aug 2019 06:41
  • Reply by stillworkin
  • New York, United States
Should not cause a problem for testing.
  • Posted 14 Aug 2019 04:39
  • Reply by BREWSKI
  • Nebraska, United States
BREWSKI
thank you can i run a wire from pos to d pin at coil? would this cause problems and have you done that before to help find problem?
  • Posted 14 Aug 2019 02:25
  • Reply by stillworkin
  • New York, United States
Diagram shows 12v from fuel run relay connects directly to D terminal. May have a harness issue. Wire 751 also powers the O2 sensor.
  • Posted 14 Aug 2019 00:16
  • Reply by BREWSKI
  • Nebraska, United States
BREWSKI
Thank you checked c is ground d no voltage checked fuel run at pdm both upper have 12 v pos not sure where to go next also went to 6 pin and could not find 12 v ?
  • Posted 13 Aug 2019 23:00
  • Reply by stillworkin
  • New York, United States
If this has four wires at coil pack. Diagram shows terminals A B C D. A and B are the triggers from the ECU. C is ground. D Should be battery positive with key on. Up stream there should be a 6 pin connector. There are two 3300 ohm resistors that receive a 5 volt signal from the ECU the come out to the AB wires on the coil pack. The battery positive feed comes from the fuel/run relay in the PDM.
  • Posted 13 Aug 2019 06:33
  • Modified 13 Aug 2019 06:33 by poster
  • Reply by BREWSKI
  • Nebraska, United States
BREWSKI

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