Skip to main content ↑ ↓
Topic: EGR deleate (Read 3435 times) previous topic - next topic

EGR deleate

Reply #30 –
Not me, I'm really good at tearing into electronics, not designing them. Though I do know from experience that electrical engineers put just so much smoke into computer chips. If you let some of it out they never work again :D  Since the design seemed to be wrong to Turbocoupe50 he might be able to come up with something better.

edit - this worked for me, but you may search some Mustang boards also for a possibly better work around.

EGR deleate

Reply #31 –
I stared at the drawing and considered redrawing it and then decided its probably just a mistake.  the second black resistor was messing with my head but then keeping it simple, the path of least riesitance still proves out.

It probably works fine but ill bet it works fine as well without the second resistor softtouch pointed out.
 

EGR deleate

Reply #32 –
Quote from: jcassity;236993
It probably works fine but ill bet it works fine as well without the second resistor softtouch pointed out.

Yes it should...

As I stated, it's doubling current flow between VREF & EVP... Circuit now has two current paths, one directly through the 3.9K and the second through the 3.9K & 390 ohm(the resistance of the pair is similar to the sensor)... In reality this probably won't cause a problem, as there is a current limiting circuit(resistor) in the EEC, to protect it in case of a wiring short in the harness...

If the circuit doesn't work without the "direct" 3.9K, the ratio between the 390 and 3.9 in series may not be optimum(possibly would need a value for the 390 from 430 to 510 ohms), not familiar with the current limiter circuit inside the EEC...