I was driving my Malibu the other day and the dash said "engine power reduced" and then a few seconds later "engine disabled". so i had to pull over. I was able to start it up after about a minute and then it did it again 5 minutes later. I am able to start it up again every time it happens but it still happens every 5 to 10 minutes.

Get the codes read to find the area of the faults causing limp mode

Your best bet would be to take it to a qualified repair shop. Special tool's and knowledge are needed . Scan tools , electrical diagnostic , service information . Your vehicle has a bunch of computers (control modules) C.A.N. cantroller area network serial data communication networks . Hi speed , med. speed , low speed . The power steering is electronic ,computer controlled , sensors on the steering shaft .With those light's lit , DTC'S - diagnostic trouble codes are stored etc... Plus there is a real chance of being electrocuted. High voltage !

When this light comes on it means the computer control module has detected a fault in the system, it has reduced power to avoid any damage to the engine or transmission. You must now have the computer scanned for fault codes, this is done through the diagnostic connector under the dash see photo below.

Pretty much, the throttle body actuator is the small motor that opens and shuts the throttle blade and is serviced in the housing assembly.

the "Reduced Engine Power", problem causes the PCM to disable "Service Stability Control" and "Traction Control" turning on the warning lights to come on for those systems . The reduced engine power is because of a problem with the electronic throttle control system or as GM calls it TAC system . Reduced Engine Power Mode
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The PCM will continue to use the accelerator pedal for throttle control, however, the vehicle acceleration is limited.
• Limited throttle mode--The PCM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.
• Throttle default mode--The PCM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The PCM will perform the following actions:
- Limit engine speed to idle by positioning the TP, or by controlling the fuel and spark if the throttle is turned OFF.
- Ignore the accelerator pedal input.
• Engine shutdown mode--The PCM will disable fuel and de-energize the throttle actuator.
© 2017 General Motors Corporation. All rights reserved.



Drive by Wire training Your best bet , take it to a GM dealer

Buy a scan tool, plug in and ease code, it won't come cheap. Just bring it to a dealer or an experienced workshop.

read the fault codes and the faulty sensor will be seen

Go to the parts store where you bought the cap. Sometimes the code clears on it's own and sometimes you need to have it reset. If this is not an option disconnect the negative battery cable for a minute. Just as a warning, if you disconnect the battery you will have to reprogram most all of your electronics.

Hi!!
You should take the vehicle back to the dealer ASAP, messing with the vehicle will void factory warranty. It should be no charge for the repair.
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Evap leak. take a look at this:

http://www.youtube.com/watch?v=lNI3RZXUSaM

though it's an s70, a LOT of that car is the same as yours.