2006 Buick Rainier I have a video of what it was doing I don't know ho

  1. I got a code p2101 and 15 16. I called the person I purchased it from the throttle body actuator has already been replaced twice he said the first time was due to a faulty part and last night they called me and told me I had to replace the whole computer why would it be throwing the one codes if the whole computer without I don't understand is this right?
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I don't know if the computer is actually bad. I would recommend before doing anything checking all the wires for the throttle body actuator and such and make sure they aren't damaged. Check the plugs for bent pins as well. These can throw these codes as well