You need to provide code reader results. Some auto parts stores let you use their code reader to pull codes, write them down and clear 'em. You can buy a decent OBDII reader for around $45. Codes such as: P3201 will help you narrow down the offender. Post them up here and you'll get reply's.
Sizzling noise? We can't work with that limited description. Could be many things.
Anything made can be made Better