90' Q45 - wire problem??

[xcrazymike]

hey im new to the forums, i own a 90 q45 , i swapped an engine from a 91' to th 90' body but before then i also had these problems ----

issue:about a year ago i was riding all day with the anti-theft light on and my display showing "low battery-charge" i didnt know what it meant until that day the car was about to die, i cut it off then cut it back on and it was fine, i maybe had that issue 3 times within a year and then i stomped on my brakes one time to avoid a crash and i realized the next day that the car was showing those signs again of the battery not being charged, it would not go away , it sat forever then until recently i bought a new battery and put it in and it doesnt show those problems but i think its a wiring problem because sometimes the speedometer wont work or the ac takes a few minutes to cut on, etc etc all seems electrical - can ANYonE give me suggestions please, im not well with cars but i need to figure this problem out and i know the people on these forums are q45 guru's -_- thank you

mike

[Q45tech]

Measure and test the 3 parallel circuits inside alternator. Check all [30-40]grounds for corrosion.

[qship96]

Have the alternator tested/replaced now before it kills your new battery.

[xcrazymike]

is this probably for certain whats my problem?

[qship96]

Most retailers/shops that sell batterys will test alternators for free or minimal cost.....why not start there?