2008 tiburon 4 cylider wont start. It cranks but wont turn over. Took it to a drealer and they told me that there was a vode for sucurity immobilizer. They tried a bypass but that didnt work. They wanted to replace the computer system after that for $1800. Which i didnt want to do. So i towed it home. As there is no check engine light and it is still reading the key and the fob properly, i dont think it is the immobilizer. Tried to reset the ecu by removing all ecu fuses and diconnecting the negitive terminal on the battery. Still nothing. I can still hear the fuel pump pressurise when i engage the key but im mot getting spark to any of the plugs. This all seemed to happen after i removed the headlight assembly then put it back on. If anyone can help, i would really appreciate it.