Engine Issue

I had a strange issue this am, and I cannot figure out why. I am certain I did something wrong, but I haven't a clue of what it was. I started Engine 1, then Engine 2. Engine 1 would not increase past idle, had full control of Engine 2. Both thrust levers had full range of motion from reverse to full thrust. When reversers added, I had lights indicating both engines reverse. I shut down both engines, started off APU and still #1 nothing above idle. Any ideas? Keith