need some help .when out to start the 95 legacy in the garage today and it wouldn't start battery was dead after 3 or 4 goes of turning it over so i put the jump leads on from the van and still no joy.it kinda ticked over badly when i was pumping the throttle for about 5 sec and the check engine light came on. i have the battery on charge now but when i turn the ignition on the rad fan comes on even though its stone cold anyone any ideas .i usually start it every week or two weeks just to warm it up and keep it right .