Ex100-3.

[Diesel Dave]

I would ignore the EC code #4 for now and focus on the (4) PVC codes 22,26,29 and 30.
Google to try and find yourself a copy of the EX100-3 trouble shooting manual # T134E-00 .
To get you started ,I will send you some code info in the morning.


.

 

[Bestlogan204]

Thank you. Those codes explain my issue. Angle sensor I can only get 2.2 signal volts out of it and not 4.4 like the book says. Also I think one of the pump stroke solenoids are bad

 

[Diesel Dave]

Thank you. Those codes explain my issue. Angle sensor I can only get 2.2 signal volts out of it and not 4.4 like the book says. Also I think one of the pump stroke solenoids are bad

The pump needs to be in maximum displacement when checking the angle sensor voltage.

 

[Bestlogan204]

Unplug the pump solenoids and let idle for 5 minutes get get it to stroke up? According to the manual?

 

[Diesel Dave]

Unplug the pump solenoids and let idle for 5 minutes get get it to stroke up? According to the manual?

Yes

 

[Bestlogan204]

Yes that is what I did and still could only get 2.2volts out of it.

 

[Bestlogan204]

Got my new solenoids and pump angle sensor. Installed everything and re set the angle sensor. And everything worked like it should so I kept running machine to make sure. Ran it for about 20 minutes was working great, then hydraulic flow went slow again. Still has power just everything is slow. So I shut it down then started it back up and now hydraulics are fast again and when dead headed hydraulics it wants to kill the engine.

 

[Diesel Dave]

Did you recheck for any codes ?

 

[Bestlogan204]

Not yet.

 

[Diesel Dave]

I suspect you will need to investigate the wire harnesses.

 

[Bestlogan204]

Will do. Now it won’t start back up.

 

[Bestlogan204]

I found that the stop motor has the injection pump shut off. Unplugged the connector for the stop motor and it’s all corroded and terminals are crusty and one broke off.

 

[Bestlogan204]

Did you recheck for any codes ?

I have code 33 and 4

How can I check the bpip sensor?

 

[Diesel Dave]

I have code 33 and 4

How can I check the bpip sensor?

A new code ?, Code 33 wasn’t active previously .
.
Per the manual , “ Fault code 33 indicates that the sensing signal (input
voltage of the sensor) is higher than 4.75 V, and
possible cause may be a short circuit of the harness
between the boom raise pilot pressure sensor and PVC “ .
If the harness proves ok, the sensor would be defective.

 

[Bestlogan204]

A new code ?, Code 33 wasn’t active previously .
.
Per the manual , “ Fault code 33 indicates that the sensing signal (input
voltage of the sensor) is higher than 4.75 V, and
possible cause may be a short circuit of the harness
between the boom raise pilot pressure sensor and PVC “ .
If the harness proves ok, the sensor would be defective.

Thank you. I believe so. If I am reading the blinks correctly. I believe I fixed the pump Angle sensor and the pump control solenoids with new parts. Now machine runs and operates as should but after a while of running the hydraulics slow down a lot, then if I shut it off and start it back up it’s back to normal, until it slows down again whenever it decides too. I will post this YouTube link of the blink codes and have you verify if you’d like.

 

[Diesel Dave]

I will post this YouTube link of the blink codes and have you verify if you’d like.

Sounds good.

 

[Bestlogan204]

Sounds good.

 

[Diesel Dave]

Thank you. I believe so. If I am reading the blinks correctly. I believe I fixed the pump Angle sensor and the pump control solenoids with new parts. Now machine runs and operates as should but after a while of running the hydraulics slow down a lot, then if I shut it off and start it back up it’s back to normal, until it slows down again whenever it decides too. I will post this YouTube link of the blink codes and have you verify if you’d like.

Like you, I came up with fault code 33 as well. Code 33 won’t be a cause of the intermittent slow hydraulics.
Check the connector to the PVC for a solid connection
Double check the PVC and EC ground wires for good solid connections,I think the ground wires all bolt to the floor at the operator seat pedestal.
Check the “N“ speed harness for an intermittent open ,it wont create a code but will put the pump to minimum angle.
Also check the resistance of the N sensor , spec is 810 +/- 240 ohms .

 

[Bestlogan204]

Okay thank you, I’ll do that. what is the N sensor?

 

[Diesel Dave]

what is the N sensor?

See screenshot below.