salvageV6
Daily Driver
- Joined
- May 25, 2001
- Messages
- 20,971
Anyone know what percent duty cycle normally is enough to trigger the EGR built in vacuum switch that provides the ground signal back to the ECM?
Doesn't have to be an exact voltage or EGR percent, just some rough idea or data from your testing.
Got my controller working today and I needed 4 volts or roughly 33% duty cycle to get the switch to close that would signal the ECM that the EGR was functioning I assume.
Anyone know what's in the normal stock code or how the ECM uses that ground signal?
Any discussion or info. is appreciated.
I think I will set the controller for emissions around 3.8-4 volts this winter as a test.
Works fine with the TPS trigger I am using at .53 volts, car ran fine in the driveway with it on there, may road test it tomorrow if I can get the power from the EGR connector instead of a wire to the battery. lol
Doesn't have to be an exact voltage or EGR percent, just some rough idea or data from your testing.
Got my controller working today and I needed 4 volts or roughly 33% duty cycle to get the switch to close that would signal the ECM that the EGR was functioning I assume.
Anyone know what's in the normal stock code or how the ECM uses that ground signal?
Any discussion or info. is appreciated.
I think I will set the controller for emissions around 3.8-4 volts this winter as a test.
Works fine with the TPS trigger I am using at .53 volts, car ran fine in the driveway with it on there, may road test it tomorrow if I can get the power from the EGR connector instead of a wire to the battery. lol
