mrfister11
10+ Year Contributor
- 167
- 1
- Oct 19, 2010
-
clinton,
Missouri
your ecu has a KAMP.. that is keep alive memory power, might be worded different, and so does your radio. it will spark when you connect them. if your battery doesnt go dead with sitting for a week then i would not worry about it.. usually you will get the multimeter and put it between the ground on battery and the ground terminal(with possitive still connected and negative not) and measure DC AMPS. that will tell you your current battery draw..
also when you turn your key on your check engine light will come on for a number of different things. because your car isnt running your ecu doesnt have all the inputs it needs so it is on.. when you start it they go away because they are "soft" faults.. which means they clear out when they are fine.(i.e. no oil pressure, battery light, etc)
if you have that o2 unplugged that would be a hard fault and the light should stay on even when car is running. but it might not. i would think so being your car is OBDII. do you have an aftermarket radio? if so maybe someone wired it into the wrong ground or power and it is taking it from the wrong place..
alot of things when not turned on will act as a "ground". so someone probing for ground wire might use the wire for the dome lights because the factory radio is connected to the dimmer switch for the interior lights... just a thought.if they didnt use a plug and play connector
also when you turn your key on your check engine light will come on for a number of different things. because your car isnt running your ecu doesnt have all the inputs it needs so it is on.. when you start it they go away because they are "soft" faults.. which means they clear out when they are fine.(i.e. no oil pressure, battery light, etc)
if you have that o2 unplugged that would be a hard fault and the light should stay on even when car is running. but it might not. i would think so being your car is OBDII. do you have an aftermarket radio? if so maybe someone wired it into the wrong ground or power and it is taking it from the wrong place..
alot of things when not turned on will act as a "ground". so someone probing for ground wire might use the wire for the dome lights because the factory radio is connected to the dimmer switch for the interior lights... just a thought.if they didnt use a plug and play connector