ChinaRiders Forums - View Single Post - Working With Diagnostic Data Cable & Software

Raptorix · 05-22-2020, 03:57 PM

Hello

It is not possible to put an Arduino in between which manipulates the crank position sensor. The ECU needs the exact position of the crankshat to calculate the moment of the spark generation. And it needs the real RPM to calculate the amount of fuel injection and much more.

Do you have any documentation about the SLEW files?

It is very easy to spy the data traffic over K-Line.
I will imlement that into the next version of HUD ECU Hacker (version 1.4) This can be done with a simple K-Line / VAG adapter for 5 bucks.

However even if you have spied the data which the Rongmao scan tool sends over the cable it may be difficult to reverse engeneer the meaning of the bytes. They may even use a secret algorithm to calculate a checksum which the ECU verifies.

Do you know if the Rongmao Tool uses K-Line or the CAN bus?
The 6 pin ECM adapter of the MT05 has both.

05-22-2020, 03:57 PM	#193
Raptorix Join Date: Feb 2020 Posts: 13	Speed Limits Hello It is not possible to put an Arduino in between which manipulates the crank position sensor. The ECU needs the exact position of the crankshat to calculate the moment of the spark generation. And it needs the real RPM to calculate the amount of fuel injection and much more. Do you have any documentation about the SLEW files? It is very easy to spy the data traffic over K-Line. I will imlement that into the next version of HUD ECU Hacker (version 1.4) This can be done with a simple K-Line / VAG adapter for 5 bucks. However even if you have spied the data which the Rongmao scan tool sends over the cable it may be difficult to reverse engeneer the meaning of the bytes. They may even use a secret algorithm to calculate a checksum which the ECU verifies. Do you know if the Rongmao Tool uses K-Line or the CAN bus? The 6 pin ECM adapter of the MT05 has both.
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