Okay, I got a test wire, but which terminal on the battery do I connect it to? Red or black? And, when you mean the solenoid, you mean the cylinder that has one wire connecting to it not the green plug correct? Also, I have a solenoid from a B16 that i was thinking replacing the old one with, it should fit on it right? If the car doesn't bog down or doesn't do anything what does that mean? Thanks again for the help.