Just picked up an 05 caravan 3.3 with only 51000 original miles. $350 score from a friend who owns a car lot. He purchased it from an auction so I know no history on it. They tried to diagnose it and failed. As well as the people who auctioned it off. I've been scratching my head on this one for 3 days. Ok, it starts up and runs. Doesn't want to idle without giving it some throttle most of the time. Accelerates very slowly and has zero power. It won't even pull itself. I got it to go down the driveway and back at 5mph and that's about it. Usually dies out until cooled down then it'll run the same. Has 175 psi of compression across the board. New fuel pump, camshaft sensor, and coil from previous people. I tested the map, egr, iac, tps, and crankshaft sensor. Everything is fine. Throws no codes. Fuel pressure seems fine (don't have a adapter for my tester yet, but ran the van off of another tank hooked to a jump box with exact same results lol). It also wants to die if you put it in gear, but I pretty much rule out torque converter because it runs poorly in park and neutral. I've never seen an engine do this and I'm so stumped. Plugs look newer, wires look good. Apparently, two other people before me couldn't figure it out either. Anyone else ran into this issue? I had a trailblazer with the same symptoms but 4 intake rockers had fell off because of sticking valves. I don't believe that to be an issue with this one. It doesn't smell rich at all. Plugs didn't look lean either.