Doosan G30P-3:
Doosan G30P-3 Code 28

Hi!
The Engine start only if I drive the gear of throtle body manually.. I have code 28 in the selftest and the throthe body is doing is moving when I turn the key km(it open close open and close slowly)

Code 28 is ETC spring test failed?? The spring in the throtle body seam to be ok...

Does somebody can help me please? Servive manual??
  • Posted 1 Dec 2018 02:41
  • Discussion started by Mike2000
  • Quebec, Canada
Showing items 1 - 6 of 6 results.
Was a faulty ECM, thanks all
  • Posted 17 Jan 2019 03:56
  • Reply by Mike2000
  • Quebec, Canada
Mike2000 contact my profile, i may have some helpful info.
  • Posted 7 Dec 2018 05:18
  • Reply by tom_p
  • Alberta, Canada
jroy500 @ hotmail dot com wiring diagram please
  • Posted 5 Dec 2018 13:01
  • Modified 5 Dec 2018 13:04 by poster
  • Reply by Mike2000
  • Quebec, Canada
plugs and connectors seem to be ok but I checked continuity from connector to ECM and I have one wire who seem to go at a few place with resistance...is it normal?? I'm about to try with a brend new throtle body..maybe the tps is bad inside

do you have the wiring diagram??? G30P-3 GB-00260
  • Posted 5 Dec 2018 10:52
  • Modified 5 Dec 2018 13:11 by poster
  • Reply by Mike2000
  • Quebec, Canada
Fault 26 Electronic throttle sticking.
Fault 27 Throttle position sensor value differs from SECM calculation
Fault 28 ETC spring or same as 26.
Above faults are frequently associated with throttle body open wiring
First check the wiring and plugs to and from throttle pedal.

Check for opens or disconnect on throttle body plug area.
Doosan's often have broken wiring where the harness connects to
the throttle body plug. Occasionally when running if the wires are
manipulated engine speed will change indicating an open.
  • Posted 1 Dec 2018 05:22
  • Reply by tom_p
  • Alberta, Canada
Code 26 27 28 after I try to start
  • Posted 1 Dec 2018 02:47
  • Reply by Mike2000
  • Quebec, Canada

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