Cant find little mechanic problem in my car

2000 VOLKSWAGEN CABRIOLET
84,636 MILES • 2.0L • 4 CYL • 2WD • MANUAL
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TROJO10
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when i first noticed something was wrong i obviously had a check engine light on ,this happened when i couldnt do more than 80mph on the highway , then overtime it dropped to 60 and now cant go faster than 40 mph because my car jolts every time i go past 1,500 rpms .. and thats all its gonna do until i switch to a higher gear , so i end up barely reaching 40mph n 5th gear! , and if i try to gas it more then car keeps jolting worse and worse which results in me having to have to slow down. everything about my engine runs good , it doesnt make any weird noises from the engine ,the transmission is perfect ,everything works great except reaching the speed limit, i bought it used with 83,000 miles now im at 84,636 and this never was happening when i bought it .
Aug 19, 2015 at 9:59 AM
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MHPAUTOS
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  • 31,937 POSTS
You will have to go get a scan and post the codes here for further assistance.
Aug 20, 2015 at 1:08 AM