Parameter Injector PDE

Hello,

It turned out that all 5 of the power distribution units (PDUs) in my T5 had an electrical defect (BIP signal).

Five brand new nozzles, directly from Bosch, arrived at the bus depot today. After installation, I wanted to enter the injector parameters into the engine control unit.

To my knowledge, this should work with a login to unlock the adaptation settings in the engine control unit. In another thread, channels 71 and above were mentioned for adaptation, but this was for an Audi A4.

However, I don't have those channels available. I searched through channels up to 150, but unfortunately, I couldn't find them.

Can someone tell me how to enter the 5-digit value into the engine control unit (ECU) of a T5 manufactured in December 2005 with an AXD engine?

Hi Andreas!

The AXD is a PD motor, and to my knowledge, the PDE sensors do not need to be programmed, unlike the CR motor.

It is important that pressure drop elements (PDEs) of the same generation are used again!

Regarding your story about having 5 defective PDUs at the same time, I find that hard to believe...
Have you previously created a log for the MWB models 13/18/23, and can you upload it here?

Best regards from Passau!

Nozzles with different part numbers were used (instead of 0414720210, the part number 0986441561 was used; and instead of 07Z130073F, the part number 07Z130073FX was used). According to Bosch, these nozzles are the correct ones, as the part number was likely changed at some point.

It still seems very strange to me that all 5 elements are defective .
The background information can be read here: https://community.dieselschrauber.org/en/viewtopic.php?t=29744

After that, all 5 components were disassembled and sent to Bosch. They then inspected 3 of the nozzles for a considerable fee. After discussing it with me, we decided not to inspect the remaining 2, as it was highly likely that they had the same defect. There was also a testing fee of 80 euros per component.

I'm just wondering how the engine was running perfectly before all this happened, aside from the issue with the PDE seals. A mechanical defect would be understandable, but an electrical failure affecting everything at once?

...but well, the nozzles went through various hands, and I hadn't written down the numbers of the nozzles before giving them to other people .

Hello Andreas,

The "BIP signal" is simply the current flow through a simple coil. By observing the current flow within an injection period, it's possible to determine when the solenoid valve in the PDE closes and the injection process begins.

These solenoid valves, like the nozzle mechanics in the PDE (preliminary diesel engine), are subject to a certain degree of wear.

As long as the solenoid coil of the solenoid valve is electrically functional and the solenoid valve can open and close, a B-phase signal (BIP) should be measurable. Please remember that the respective circuits consist not only of the solenoid coil of the solenoid valve, but also of its entire wiring up to the engine control unit.

Best regards, Rainer.