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Hi you have a 300sl you put the battery in backwards and lost the power top please help?
Wiki User
∙ 14y ago
Initially, I didn't think anything would happen as your battery duked it out with the grounding strap, sparking and heating up. I did a little research and found that people who switched the battery cables blew their ECU's and relays, or anything with a diode in it. Maybe it reversed the polarity in the rest of the car. If the rest of your car is okay, the engine starts, radio plays, etc., then I would check the convertible motor. Check the wire with a testor to see if it's getting juice to the motor. No juice, check the relay in the fuse box. Juice going to and from the relay, check the switch on the console.
Wiki User
∙ 14y ago
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1991 Chevy caprice that the battery was installed in backwards .changed out computer it was fried. changed fuel pump fuse and injectors fuse. no power to fuel pump?
and I have since replaced the battery and found that the alt was shot.. has new alt and battery. but still cant get the injectors or fuel pump to power up... battery was put in at the side of the road in a hurry, car was turned over. it did turn over then smelt a burnning small from the pass side kicker pannel. found that the computer melted a hole in the board.. removed backwards battery. got car towed home from 3 hours away. I hope someone out there has an answer. Ive never done this in more than 50 cars ive owned
