Ballast resistor testing

[Glenwood]

okay, so with the ECU connected, i get 6.09v at the coil. Engine running 8.36v

The 6.09v is lower than his recommended 7-9v What can i do to increase that ?

That's close to what I have. What is the voltage to the resistor? A smaller resistor will bump the voltage up a tad but it sounds like your in range while running.

 

[Tori]

I'd have to go check. But, i've relayed all this info the seller of the ECU and he says i'm FINE. So i guess what's important is the running voltage.
Makes sense.

Thanks guys.

 

[Ranger16]

That's close to what I have. What is the voltage to the resistor? A smaller resistor will bump the voltage up a tad but it sounds like your in range while running.

Doesn't the resistor LOWER the voltage to the coil?

 

[Glenwood]

Doesn't the resistor LOWER the voltage to the coil?

It does but a lower resistance resistor has less voltage drop across it resulting in higher voltage to the coil because of increased current in the circuit.

 

[Ranger16]

Ahh, now I see what you meant.