Hi....have 1995 SideKick 4 cyl. fuel injected model JLX 4x4........The car just passed emitions test with flying colors.....The car sat for a little bit........now starts fine ,but will not accelerate.....and has no power.....Checked compression and all are even...was put on electronic tester and was told nothing wrong with it........checked ignition timing and with the light on it......the timing does not advance when attempting to accelerate....How does the timing advance operate on this vehicle....and how do I fix the problem? ernie.baich