Are you getting a check engine light?
Well it could be the VCT, but you would have a CEL.
It could be the camshaft position sensor, you would also have a CEL.
It may be a plug/plug wires. Wouldn't necessarily have a CEL for a bad wire/plug.
Something else to think about....does it do it all the time or at a certain point of the gas gauge? If so it may be a clogged fuel filter or bad fuel pump.
