- Tue Sep 22, 2020 2:02 am
#45488
Good afternoon, I am using 2008 code in my project of a Mercedes with M104 24 valve engine and original phonic wheel with VR sensor, I am using the code with the active methanol injection option (I want to use it in the future). The issue is that I take the car to the dynamometer and I was surprised that the variable cam was not working, I used several options to make it work (it works 1 or 2 times and then it no longer works).
As solutions of the minute, install a relay, change the computer output (electro fan output and IAC2 output) that were not being used. With these outputs the same effect occurred (it works 2 times and then nothing).
As a last option, activate the programmable output and I was recently able to make the vvt work ... but with this another problem appeared.
First by giving a second condition to the programmable output which did not work ... and the last thing that happened is that the computer began to desynchronize the CKP signal and even sometimes the motor was unstable in the ralenty (it is as if the computer had problems memory within the minute of executing the programmable outputs).
As a solution momentarily leave the VVT configuration as in the beginning (without working) and the ecu no longer desyncrinized.
As additional information I used all the settings of the vvt table to make the cam work but it still worked 2 times and then nothing.
Thank you very much for your help ... greetings from Chile
As solutions of the minute, install a relay, change the computer output (electro fan output and IAC2 output) that were not being used. With these outputs the same effect occurred (it works 2 times and then nothing).
As a last option, activate the programmable output and I was recently able to make the vvt work ... but with this another problem appeared.
First by giving a second condition to the programmable output which did not work ... and the last thing that happened is that the computer began to desynchronize the CKP signal and even sometimes the motor was unstable in the ralenty (it is as if the computer had problems memory within the minute of executing the programmable outputs).
As a solution momentarily leave the VVT configuration as in the beginning (without working) and the ecu no longer desyncrinized.
As additional information I used all the settings of the vvt table to make the cam work but it still worked 2 times and then nothing.
Thank you very much for your help ... greetings from Chile
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