QUES: Flash ROM Processor troublefree update of the cockpit performance features to current manufacturer level

correct the punctuation.

CORRECTED: Flash ROM Processor: trouble-free update of the cockpit performance features to current manufacturer level

QUES: The workers live in dark and dirty hovels

correct the punctuation.

CORRECTED: The workers live in dark and dirty hovels.)

QUES: Grand Bang Auto is a sexy game you can play online

correct the punctuation.

CORRECTED:
Grand Bang Auto is a sexy game you can play online.