Hi guys I've got a mazda 3 2004 2.3 automatic ,
had a code for multiple misfires and camshaft sensor, then got a short on the crankshaft sensor due to wiring bieng damaged by passenger side cv joint, fixed the wiring , unhooked the battery terminals for one night cause it ran out of power , and now car is not showing a code or engine light.
it turns but won't start , the only thing I've noticied its a red key inside a a red car light on the dash.

thought about changing the sensor .

I appreciate any suggestions ,
thanks