08-31-2020, 07:40 PM
Wow! Thanks for the quick and massive response!
I guess I should have mentioned:
-The engine has 4 COPs with a separate ignitor (only 2 wires go into each COP).
-The arduino circuit I built utilizes the transistor method that you mentioned. When the out pin is HIGH the transistor is on and sinks current to ground through a resistor, when LOW, the transistor is off and you get current going through the output of the circuit. I'll try to draw it up later today.
A little more on the arduino sketch. I coded it to sweep a range of frequencies based on the output of a pot that I had wired up. It was about 2 months ago, so I don't really remember the frequency range, but the fact is that the needle did not move. I don't have a scope to test the output of my circuit, but I have another arduino nano and I've heard of people building scopes with them, so I might try it.
Once again, thanks for the huge help!
I really wish that I had access to the donor car, but my dad bought the engine from a scrap yard and the old fart there just cut off all the wiring from the ECU and didn't even give him the immo box and key (hence the immo delete).
I guess I should have mentioned:
-The engine has 4 COPs with a separate ignitor (only 2 wires go into each COP).
-The arduino circuit I built utilizes the transistor method that you mentioned. When the out pin is HIGH the transistor is on and sinks current to ground through a resistor, when LOW, the transistor is off and you get current going through the output of the circuit. I'll try to draw it up later today.
A little more on the arduino sketch. I coded it to sweep a range of frequencies based on the output of a pot that I had wired up. It was about 2 months ago, so I don't really remember the frequency range, but the fact is that the needle did not move. I don't have a scope to test the output of my circuit, but I have another arduino nano and I've heard of people building scopes with them, so I might try it.
Once again, thanks for the huge help!
I really wish that I had access to the donor car, but my dad bought the engine from a scrap yard and the old fart there just cut off all the wiring from the ECU and didn't even give him the immo box and key (hence the immo delete).