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oldbeaver · 10-25-2013, 08:46 PM

Using a audio PC-Scope, I measured several wires at the ECU.

The signals has the shape shown in the graphs bellow.

First: blue wire at 700 rpm (idle) (Rack position)
Second: same at 1500 rpm (approx)
Third: Green/yellow wire at 700 rpm (RPM)
Fourth: Black/yellow wire at 700 rpm (Rack position)
Fifth: same at 1500 rpm.

The table shows the color of wires attached to the ECU.

I am working this subject with the help of AndrzejM who is working the Microcontroller circuit that will process the signals.

OldBeaver

10-25-2013, 08:46 PM	#42 (permalink)
oldbeaver EcoModding Apprentice Join Date: Oct 2008 Location: Chile Posts: 223 Mercedes 89 D - '89 Mercedes 300 E 90 day: 33.86 mpg (US) Skodie - '09 Skoda Octavia TDI PD 90 day: 38.84 mpg (US) 1993 Mercedes 300D Turbo - '93 Mercedes Benz 300D Turbo W124 90 day: 26.19 mpg (US) Crossie - '16 Subaru XV Crosstreak 90 day: 9.61 mpg (US) Crossie - '16 Subaru XV Crosstreak 90 day: 33.34 mpg (US) Thanks: 15 Thanked 9 Times in 7 Posts	First measures of rack position sensor. Using a audio PC-Scope, I measured several wires at the ECU. The signals has the shape shown in the graphs bellow. First: blue wire at 700 rpm (idle) (Rack position) Second: same at 1500 rpm (approx) Third: Green/yellow wire at 700 rpm (RPM) Fourth: Black/yellow wire at 700 rpm (Rack position) Fifth: same at 1500 rpm. The table shows the color of wires attached to the ECU. I am working this subject with the help of AndrzejM who is working the Microcontroller circuit that will process the signals. OldBeaver Attached Thumbnails __________________ Mercedes 300 D turbo 1993 Last edited by oldbeaver; 10-25-2013 at 08:53 PM.. Reason: correction