John Deere error codes

[gerr]

I have a John Deere 6630 that's thrown 2 error codes while driving (below). It will be driving fine then the codes show up. Sometimes she restricts revs but otherwise drives normally. What would cause these sensors to be set off? Many thanks in advance.

 

[Timbo]

First code is EGR valve stuck, sticking or otherwise in a position that is un-commanded.
Second code is notification the engine is in de-rate mode.

Call Derv Dr .

 

[gerr]

Thank you.

 

[gerr]

I sent the ECU to the Derv Dr on Thursday afternoon and got it back on Saturday morning. Put it on and Halleluiah! No error codes, No limp mode and he put her up to 150 hp and boost to 160. Runs as sweet as. Thank you Derv Dr.

 

[Timbo]

I sent the ECU to the Derv Dr on Thursday afternoon and got it back on Saturday morning. Put it on and Halleluiah! No error codes, No limp mode and he put her up to 150 hp and boost to 160. Runs as sweet as. Thank you Derv Dr.

Make sure you fit the egr blanking plate also.

Youll find the better power n torque only half of the improvement.

 

[gerr]

Make sure you fit the egr blanking plate also.

Yes, blanking plate in. A 10 miute job altogether.

 

[Grassnslurry]

I sent the ECU to the Derv Dr on Thursday afternoon and got it back on Saturday morning. Put it on and Halleluiah! No error codes, No limp mode and he put her up to 150 hp and boost to 160. Runs as sweet as. Thank you Derv Dr.

Did the exact same to a 6630 here a few weeks ago, putting up the same codes, she's lively and sounds a bit nicer since