Electrical problem
1992 Infiniti Q45 V8 Automatic 135429 miles
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1992 infiniti,q45.at frst it shut down when driving.but when i put in park it start again it would drive for a while then it did it again.now i have to keep jumping it,& it stills dies.so i took the cable off the battery & still ran. but when i shut the car off & try to start it again it just clicks.i also changed the fuel filter too.also when starting it after a jump sometimes it keeps hesitating.

First thing DO NOT remove cables with the motor running! The PCM requires that all sensors and itself are GROUNDED! Damage to the electrical systems can occur by doing this. Next, it seems you have either a bad battery, or battery cable(s) Follow them to their end points, clean both end till they shine! Remove negative cable first, and replace it last!