John Deere 4520 Error Code 201

John Deere 4520 Error Code 201 Problems

I have a 2008 John Deere 4520 Cab Tractor with about 50 hours of use.Just this morning when I start it it gives me the error code 201 and it does not accelerate.It runs at idle, if I try to drive it or increase the throttle, it eventually shuts off.The closest JD dealer is 3 hours away.Does anyone know what this error code means?I’ve searched the internet and can’t find any information.

John Deere 4520 water seperator fuel replacement

The first 3 things to check:

  1. Remove the fuel cap and see if it works well again: Y = fuel tank does not vent, N = continue at 2
  2. Remove and clean the water separator / fuel strainer, does it work fine again?S = Fuel strainer was clogged, N = continue to 3
  3. Change the primary fuel filter, does it work well again?
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