my truck seems to not have the full power it use to when taking off or getting on a freeway i have to kick it down to really get it to go, thought it might be fuel filter until i found out you cannot replace the fuel filter. looking for some help with this.. also wires split in drivers door and my speaker wasnt working i fixed that but my service air bag light is on all the time now. i checked for codes and its pulling nothing up. i also brought it in and i was told the scanner wasnt connecting with the system.. suggestions on either of this issues.. thank you