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**dmjlambert** · 06-11-2018, 09:02 AM

When you get your ACDelco PT2145, use an ohm meter to measure how many ohms the resistor is, and please let us know. Many old threads about doing this mention all different resistor values and going to Radio Shack for them, so I wonder. American Auto Wire has an adapter also, and I don't know if it has the sense wire included but it does have a resistor on the L wire. Their resistor is 510 ohms according to a tech guy that wrote me back in an email. They say in a white paper on their website any resistance between 35 ohms (5-Watt resistor) and 500 ohms (0.5 Watt resistor) is fine. I wonder why the big range.

06-11-2018, 09:02 AM	#76
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,561	Re: Alternator question When you get your ACDelco PT2145, use an ohm meter to measure how many ohms the resistor is, and please let us know. Many old threads about doing this mention all different resistor values and going to Radio Shack for them, so I wonder. American Auto Wire has an adapter also, and I don't know if it has the sense wire included but it does have a resistor on the L wire. Their resistor is 510 ohms according to a tech guy that wrote me back in an email. They say in a white paper on their website any resistance between 35 ohms (5-Watt resistor) and 500 ohms (0.5 Watt resistor) is fine. I wonder why the big range.