Originally Posted by richm
while you are about it, disconnect the 3 connectors on the bulkhead behind the engine, and check that the contacts are clean, pay special attention to the one nearest the battery with larger wires in it, disconnect and plug it back together a few times to clean the contacts.
but for fuck sake, do NOT spray any shit like WD40 on them, it will dry up the lithium grease that helps the electrical connections