Engine stutter apon downshift?

[Bogers99GTP]

When Im at a higher speed (highway) and punch it, when it down shifts it stutters for a sec or 2 then takes off. It only does this once in a while. It doesnt do it in the lower gears or at lower speeds. Any thoughts as to why it does this?

 

[GTX]

line pressure in tranny

 

[Bogers99GTP]

line pressure in tranny

Lack of pressure? Im getting a Intense pcm for Christmas so the line pressure will increase.

 

[t24moore]

........I dunno about line pressure, why would that make the car stutter? I say check your ignition system (plugs and wires) out and O2 sensor. Also could be signs of a potential cat problem.

 

[Bogers99GTP]

........I dunno about line pressure, why would that make the car stutter? I say check your ignition system (plugs and wires) out and O2 sensor. Also could be signs of a potential cat problem.

The wires might be the prob. They have given problems before. Ill have to check them later.