No power and backfires

My code flashed 12 and 32 what are those codes for My code flashed 12 and 32 what are those codes for

I've had this problem for 4 months. I'll let you know what I've checked and done: I've replaced the cam and crank angle sensors with no change. I was told by a shop the valves were burned so I pulled the heads and had them rebuilt, no change. Timing shouldn't be a problem, its an old school timing chain. I don't want to say its impossible to slip, but if it did there are probably bigger issues to deal with first. A stretched chain the pcm could probably adjust for. Besides, the timing marks are internal so there is no way to conveniently check it. If you're confident the plugs, wires, and coil are good then you should check the fuel pressure. To low of pressure could be a plugged fuel filter, bad fuel pressure regulator, or weak fuel pump (unlikely). If you have gas in the vacuum line, the regulator is bad. I have no fuel pressure when I turn on the ignition but I hear the pump whirl up. The pressure is perfect when its started (for the 3.3 is 49psi w/vacuum, 55psi without). The second the ignition is shut off, fuel pressure drops to 0. I pulled all the plugs after running the car and found cylinder 1's plug soaked with gas. The wire ohms out, and spark plug tester shows its getting juice. I swapped the spark plug with another cylinder and the problem stays with cylinder 1. I believe mine is a fuel injector issue. I had them professionally cleaned but all the computer read out shows is flow rate and spray pattern... not if its stuck open, flooding the cylinder. I can also hear each one click when touched with a stethoscope. I'm going to the junk yard to pick up a couple injectors and see if replacing that one helps. Good luck!
I've had this problem for 4 months. I'll let you know what I've checked and done: I've replaced the cam and crank angle sensors with no change. I was told by a shop the valves were burned so I pulled the heads and had them rebuilt, no change. Timing shouldn't be a problem, its an old school timing chain. I don't want to say its impossible to slip, but if it did there are probably bigger issues to deal with first. A stretched chain the pcm could probably adjust for. Besides, the timing marks are internal so there is no way to conveniently check it. If you're confident the plugs, wires, and coil are good then you should check the fuel pressure. To low of pressure could be a plugged fuel filter, bad fuel pressure regulator, or weak fuel pump (unlikely). If you have gas in the vacuum line, the regulator is bad. I have no fuel pressure when I turn on the ignition but I hear the pump whirl up. The pressure is perfect when its started (for the 3.3 is 49psi w/vacuum, 55psi without). The second the ignition is shut off, fuel pressure drops to 0. I pulled all the plugs after running the car and found cylinder 1's plug soaked with gas. The wire ohms out, and spark plug tester shows its getting juice. I swapped the spark plug with another cylinder and the problem stays with cylinder 1. I believe mine is a fuel injector issue. I had them professionally cleaned but all the computer read out shows is flow rate and spray pattern... not if its stuck open, flooding the cylinder. I can also hear each one click when touched with a stethoscope. I'm going to the junk yard to pick up a couple injectors and see if replacing that one helps. Good luck!