Changed the battery, and the car started fine but now it won't

Check grounds. 3 main grounds are battery to engine, battery to body and engine to body. Sounds like yours is battery to body.

have you checked the relay between the battery and the starter?
i had a ltd 2 that suddenly refused to start after trying everything else it turned out to be a little black box(relay) on the fender well between battery and everything else!

Hyundai coupe siii
Hi my car won’t start it turns over fine but the immobiliser seem to be kicking in. Was running fine changed the battery an now won’t start. Any ideas?

check your battery cables for corrosion clean them and start the engine

I am not familiar with hybrids, but i think when you start, it's starting with the battery, so I think you have a bad connection, check and clean the battery terminals.

you should check your battery at first!!!

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bmw b800

If it is a 3.8 engine change the crank sensor,they go bad on the 3.8 engines.

Sounds like your starter is bad.

so this is turning over but not starting before and after you changed the battery,if it was turning over fine why change the battery as this part of the system was good.powering up lights takes very little power to operate.these have a problem with cam sensors and crank sensors that go bad.if either sensor goes bad the car will not start.also keep in mind that even though a scan tool might show one of these sensors as being bad it may be the opposite sensor that is actually bad,this happens often with this system.

Help please....I have Mazda Protege 2002...the car was driving good..and suddenly the car didn't start at all i changed the starter the battery is fine because when i start the car the lights comes on and the radio works. I don't know what is the problem is...when i start the car it makes noise of tik tik. Please help me????