Transmission tends to malfuntion ...

Manifold absolute pressure would not affect the transmission. It measures air flow and send the to he ECM (engine control module). Check the fluid level in the transmission. You may also have a plugged filter in the transmission and this will tend the keep the transmission in low gear because the sensor is not getting enough pressure to switch gears. In which case do a filter, gasket and fluid change.

Hello and welcome to FixYa!

As a first course of action, I strongly suggest that you check the spark plugs. If the plugs have big gaps, corroded, covered with carbon or just faulty, they just fail. One good reason why it hops during acceleration.

It's like fuel flooding. More fuel but less burning and if that's the case, the plugs must be replaced to resolve the issue.

Have you replaced the transmission fluid lately? If not, then now is a good time. If the transmission fluid is burnt, the transmission tends to fail. Now you feel that kangaroo thing, sooner or later the turtle.
It may just be stuck in gear and you'll notice that it's not shifting.

I strongly suggest that you replace the transmission fluid as well if you haven't done that. Don't forget to look over the spark plugs too.

Hope this helps and thank you for using FixYa! Have a good one!

Check your Transmission fluid level with the car warm, also if when you are driving your car, and you get a very loud whinning sound then your torque converter is shot and you will need to replace it. This sounds like a transmission issue that would be best diagnosed by either a transmission shop or a mechanic.

Sound like first gear is going out on you. It could also be an issue with the clutch. If the car has enough power try to take off in second gear and see if it hopes. If it doesn't there's likely a problem with first. Unless you are a certified auto mechanic, it's probably best to bring it in and have them conferm that it is a problem with the gear and have them take care of it. It might mean replacing the transmission.

I can tell you what the codes are but I afraid I don't have an answer as to how to fix it.
700 - Transmission Control System Malfuntion
715 - Input/Turbine Speed Sensor Circuit Malfunction
731 - Gear I Incorrect ratio
733 - Gear 3 Incorrect ratio
734 - Gear 4 Incorrect ratio

sounds like your syncroids are off, gears tend to wear,and when they wear down so much it tends to kick out of gear! you could rebuild the transmission or go to a wrecking yard and get a used one. I would suggest the second thing!

Sounds like oil on the clutch plate lining, burned or glazed facings. Could be worn or loose engine or transmission mounts. Sometimes it is worn splines on clutch plat hub or a warped pressure plate or flywheel.

Could be a vacuum issue or the modulator..

The modulator tells it when to shift and is controlled by vacuum presure..
Check all vacuum lines that rum from the tranie for cracks, spits etc..

it could also be a sensor..

Hope this helps !!
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you are experiencing early to mid stage transmission failure.

have you checked the fluid level? ther could be several reasons. #1 low fluid level.#2 engine speed sensor.# transmission control module.#4 the solenoids in transmission gummed up or malfuntioning. have these checked out