Quote:
Originally Posted by AndrzejM
I think the best way would be to hook up to the back side of ECU plug or plug connected to the injection pump. It will be easier to find the right cable connected to the second place.  Fewer connections, that's for sure |
I agree. The ECU harness is more complicated. And I would prefer not to touch it.
EDS Inputs to this system are:
Voltage supply via OVP relay (K1) - overload protection relay I suppose
Engine speed via speed sensor (L3) - rpm?
Coolant temperature via sensor (B11/4)
IP control rod travel via sensor (L7) - rack position?
Air quantity via AFM (B2/1)
Manifold (boost) pressure via OVP relay (K1) - useful for real time fuel estimation?
Barometric pressure via sensor (B18)
Base circuit resistance via reference resistor (R18/2)
Resistance trim via ELR knob (R18/1) - regulable fix resistance I think
Outputs are:
Variable control voltage to the ELR actuator (Y22)
Voltage to VAC transducer (Y31) and on to the ARF valve (Y31/1)
Connection to test connector diagnostic block
Basicaly, the fuel injected is governed vía ELR actuator in the back side of the injection pump, where more voltage means more fuel and less voltage means less fuel. Very useful information.
To me is very clear that ELR controls fuel injected. You want to combine it with the rack position sensor signal. Question: Is it L7?
Second, I suppose this voltage controls VAC transducer (Y31) which is the effector for .... what? The turbo somehow?
I will try lo locate all this elements in the engine compartment next to the injection pump after I recover my car, hopefully tomorrow.
Comments, enlightments?
Oldbeaver