Hi.
I woke up the other day at 5 am, it was really foggy outside and my car missfired after I started it. Figured it was damp wires. So I changed plugs and wires but it is still running rough and sending error code #13. What is an RPM signal error? Is this a Crank sensor or something, and where is it located? I'm thinkin there must be two since there's two codes for it? I guess mine is either wet or fried.

Thanks.
Slash