Took my car to a kwik kar lube and tune for an oil change and cleaning of the air filter. About 30 miles after leaving this place my car starts to shake pretty bad so I pulled over. As soon as I pull over my check engine light comes on and power reducing mode came on. Now I'm not able to drive over 20 mph and rpm's won't go any higher than 1500. I was able to coast to another repair shop. At this repair shop they tested the codesand said Iit was related to the throttle body. I find it very strange that my car was running perfectly fine before I had any work done. Is there any way that my throttle body could have been damaged or messed with while they changed the oil or messed with the air filter?