- Oct 14, 2012
- 3
Got a 2005 EXT Trailblazer with a 4.2 engine and 122,000 miles. Never had a problem with it I drove thursday not on friday. when i got in it saturday the reduced engine power light came on and it won't go over 15mph. I spent all night researching the problem - towed it to AutoZone today to get the code - the code that came up was P0122-definition throttle/petal position sensor/switch "A" circuit-aalow input. Don't have any more time to research the problem on my way to work - I don't remember seeing that code. Any help would be greatly appreciated. Thanks!