Q: Car jerkin at 40 50mph wen i re hit the gas it goes away..but no service lights are on

All you have to do is go to the dealer and have them reprogram the PATS system to work with the new keys. This will be a lot less to get done than what all the replacement parts will cost...

This might be due to a vacuum leak. Vacuum leaks are common in older vehicles because of the age of rubber lines, gaskets, etc. The vacuum leaks alter the air fuel mixture and as the engine tries to adjust it,...

It sounds like you may have an over fueling situation going on where the motor is being provided more fuel than it can efficiently burn, resulting in the raw fuel smell you describe. This can happen for many different reasons...