Stumble/loose connection feeling

[Siciliano15]

If anyone can help me out that would be great. I was driving on the highway and hit a medium sized bump nothing crazy and the engine stumbled pretty bad for a second. Then after that every expansion joint bump made the car stumble. smooth roads no problem car has full power and is perfect. bumpy roads no good at all. engine light is on and showing 3 codes:

P1635
P0530
P0107

If the engine is idling and i try clearing the codes, the engine light goes off for a split second, the engine stumbles, and the engine light goes back on and idle returns to normal. took the car to the dealer and they didnt find any loose wires but they did not take off the intake manifold to check the sensors back there. does anyone know what i can do? i feel like im screwed and that nobody can help me.

[Siciliano15]

oh and sorry this is on a 1998 pontiac trans am ws6 t-top automatic

[Ben Charles]

5 volt reference circuit

AC refrigerant Malfunction

MAP low voltage

[Siciliano15]

so should i just replace the ac pressure sensor and map sensor and see if the problem goes away?

[Ben Charles]

Wouldn't hurt, but before you go throwing money at it look at the wiring and trace it back to the ECU and look for broken or frayed wiring.

[Siciliano15]

ok thanks

[Siciliano15]

well, i ended up fixing the problem as far as i can tell. thanks for the suggestions. i removed the pcm and trimmed down this metal screw that may have been grounding on a wire. then i replaced the ac refrigerant sensor too and now its all good