John deer 225c lc auto idle not working

[Raptor exc]

No

 

[Raptor exc]

auto idle on or off,the idle is the same 1375rpm

 

[Diesel Dave]

auto idle on or off,the idle is the same 1375rpm

The auto idle indicator light goes off with auto idle switch off ?

 

[Raptor exc]

Yes

 

[Raptor exc]

Auto acceleration A/A is not working either.

 

[Diesel Dave]

All the pilot pressure sensors (9,A,b,c ) have readings when operating the various functions ?
You say the Front Att Operation sensor (d) circuit is not working which is likely why the auto idle isn’t functioning properly. Doesn't explain why the idle speed is high with auto idle off tho.
The Front Att operation sensor is located on the side of the swing motor housing, check the wiring harness and the terminals on the sensor.

 

[Raptor exc]

Thank I will look at that tomorrow

 

[Raptor exc]

The front att opération sensor d circuit is workin I get a 1 when operating I cleaned the conector

Engine on lever down operating
L1-e
L2-e
0-0
1-0
2-every function
3-every function except curling the bucket
4- every function except swing
5-every function except bucket
6-750 but real rpm is 1375
7-2.5 when dial is at 0
8-0.5 to4.4
9-only boom up
À-only stick in
B-only swing
C-forward and reverse
D-every function except travel
E-nothing 0.0
F-nothing 0

Whit auto idle on, dial to max i get 2000rpm for 3 second then drop to 1700 if i move joystick goes back up to 2000,but never go down to 750 rpm
???????

 

[Diesel Dave]

What is #7 when engine is at 2000 rpm ?

 

[Raptor exc]

3.0 for 3 second then2.8
If I turned the dial back to low it show 2.6 at #7

 

[Raptor exc]

The #6 rpm target says 1500 but the real rpm is 2000

 

[Raptor exc]

When it’s lower than 1700 rpm the auto idle doesn’t drop the rpm after 3 second

 

[Steve Austin]

Not trying to get anyone off track here but looking in parts the 225 has an engine learning switch. I know service manual says not used on some models but I do know if it gets bumped out of neural position will cause engine speed problems even when manual states not used. Simple check worth a look.

 

[Raptor exc]

Do you know where that switch is?

 

[Steve Austin]

Not sure on the 225 but on other models around the fuse panel it is a small switch not much travel between positions I have seen these get bumped out of position especially if you have items stored in the cab.

 

[Raptor exc]

I will try to find it

 

[Diesel Dave]

The 225C has an engine speed learning switch that @Steve Austin mentioned.
When you find the switch and you find it in the middle (normal) position then an engine speed adjustment and engine learning may be the next step.
.

.

 

[Raptor exc]

Thank i will take a look at that

 

[Raptor exc]

I found the switch it is in the middle it has never been moved. For now my excavator is working,is there a risk that engine learning would prevent me of finishing this job?
Thank!!

 

[Diesel Dave]

I found the switch it is in the middle it has never been moved. For now my excavator is working,is there a risk that engine learning would prevent me of finishing this job?
Thank!!

No risk