Clio sport cup
Someone please help me. So I’m thr last 6 months I took my clio cup 200 to a Renault specialist for a cambelt and vvt timing belt service. He timed it wrong and blew up the engine twice. And as it blew up my engine twice it blocked the cat and pre cat. So I removed the cat and pre cat and had a decaf system added. Now the car is in the garage the battery has blown up it won’t stop misfiring. And now won’t even start ! Wtf is up with it.