Cat Lift Trucks (& Caterpillar) C4000:
code e-38

has code E-38 starts and runs ok then starts to power out -cleaned filter at throttle body and changed press regulator unit don't have code meanings please help
  • Posted 16 Jan 2015 09:31
  • Discussion started by oldywan
  • Saskatchewan, Canada
Showing items 1 - 4 of 4 results.
Thanks for the info Swoop helped a lot
  • Posted 17 Jan 2015 10:52
  • Reply by oldywan
  • Saskatchewan, Canada
found a service doc on this code
check your email
  • Posted 17 Jan 2015 05:16
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
serial #is AT9003715 has Nissan 4cyl LPG system
  • Posted 17 Jan 2015 04:53
  • Reply by oldywan
  • Saskatchewan, Canada
serial number of truck?

the E-38 is:
LPG VAPORIZER DIAGNOSTIC RESULT SIGNAL

so there is some soft of fuel related problem

in one of the service grams i found it has a list of a troubleshooting guide to check related to this code but depending on the year/Tier level some of these may vary.

- Check fuel pressure.
- Replace the filter screen in the injection holder body under pressure sensor.
- Is fuel rushing past the injector body and into the intake?
- Fuel pressure readings low and tech adjusted the vaporizer. Unit is running fine.
- Found broken wires at the fuel pressure sensor. was reading 0.0 kpawith fuel lock jumped
out and engine running.
- Tech cleaned the fuel filter and cleared code.
- Resolution: screen plugged
- Check to see if the ECU was changed or the injection holder was changed. If the parts are mixed depending on fuel system, this code will set.
- Check injection holder filter screen if fuel pressure is too low.
- Check for fuel leaking into the balance line vacuum hose. (leaking vaporizer diaphragm).
- Check for raw fuel smell into the intake (listen for air noise when key on).
  • Posted 16 Jan 2015 23:12
  • Modified 16 Jan 2015 23:25 by poster
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

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