I installed a new pickup and it's output is really low. Changing strings, string height and pickup height didn't help any. How can I use a multi-meter to check the pup to make sure it's OK? My soldering is good, and it's wired correctly. It's a single coil.
I'd let the experts chime in, but for now, I'd suggest measuring the resistance on a cord plugged into output jack. With the meter, one lead to the barrel of the tip and other lead to the tip of the tip. Be sure to turn the vol knobs all the way up. For a low output single coil, I'd say you'd be looking for at least ~4.8K ohms.
Zelmo is right, measure the coil with an ohm meter, anywhere in the 5k to 7k would be ok, strats are usually about 6k. It will read a fraction less in circuit but good enough to tell whats going on. What pickup are you comparing it to? How much less output?
It's a Lace Sensor. Had one installed...and it was fine. No noticable volume difference compared to my 'buckers. When I installed this pup however, the volume drop is drastic, even with the pup raised up all the way.