Voltage drop is a test of resistance under load, which differs greatly from ohms in a dead circuit. Set you DVOM to Volts and hook up your lead to each side if a connection and apply load. This can show you where a poor ground is, or where a bad cable end is. It can even indicate a bad battery connection. You can connect between the cable post on your starter and the starter body to load test the starter even.

http://www.youtube.com/watch?v=GaffsGFFg_U

http://www.youtube.com/watch?v=fKJUftLPsQs

 

i know this off da topic a lil bit,but could a bad battery trigger off other sensors like ckps,cmps,and iat sens.da reason i ask is ,i only had 1 code and it was for da coilpack i changed it,and all sensors were good bfore i changed my clucth after iput my tranny back up,i was hard starting so i checked ckps and checked battery liquid and all cells were a lil low dont have da mulla for a new 1 so let me know what yall think

 

Pull your damn pants up and speak English. Or at least Spanish.

Seriously though, double check your connections. Sounds like you have something unplugged. Was it hard starting, or was it slow cranking? Two very different things. make sure the mating surfaces between engine and trans/ starter and trans are clean. Those are grounding points.