The start perfect but the engine will not acelerate perfect what casn be the problem

If the problem is only on cold start check cold start injector, it cuts out after the engine worms up .a faulty thermostat can delay worm up.

new computer needs programming---------ask [email protected] primero hav u done tuneup on ignition and fuel -clean throttle body idle control

It sounds like its missing on one or more cylinders. I would check the plugs and wires if it has them.

What year? and model is it?

you need to get computer checked. sounds like your throttleposition sensor.

Go to Auto Parts Store and purchase TPS Sensor.
Only if you know that is your vehicles problem.
Codes alone, don't always tell you what is wrong, and what to replace.
Most people are starting to believe it's that simple.

It is a little set screw on the back (facing the firewall) of your throttle body on your intake. You have to remove the cover first then you'll discover a plastic screw that backs out causing too much air to enter in. This causes the galloping idle. Turn it back in and you'll have it solved. Write back if you need more help.

check for a dirty fuel filter

check the engine speed sensor or pick up

have you tried an engine idle relearn?

start car don't touch a thing, encluding brake. Let idle for 2 fan cycles. and see how it works from there.

Could be a few things. IS the check engine on? Could just be a bad mass air flow sensor. Or a seized wastegate. Yuo can start by trying to unplug the mass air flow sensor. If it runs better it could be just that. Just make sure to remove and clean the lower air filter box change the air filter and the snow screen which is located next to the battery where the air enters. These always are blocked. If it runs ok (not perfect change the mass air flow.