Exhaust has twisted

Check the length of the bolts (118.5mm max) stage 1- 20 Nm, stage 2- 20Nm, stage 3- 100deg +-6deg, stage 4- 100deg +-6deg and for the cam sprocket 45Nm, camshaft stage 1- 8Nm, stage 2- 12Nm, inlet manifold to motorhead: upper part 9Nm lower part 21Nm, exhaust manifold to motorhead 18Nm

If the exhaust system was plugged the engine wont run, normally. It will start and idle until the back pressure is such that it can't take in more air/fuel mixture and then stall.

After the converter, there may be a resonator, and then the muffler. Is any exhaust flowing out of the tail pipe? You might try hooking up a scanner and see what your oxygen sensor(s) is/are doing.
Also, scan the MAF(mass air flow) sensor assembly.
Sound like the engine can't breathe, and its getting to much fuel.

what?? bank 2 is the drivers side of the engine sensor 1 is located before the cat conv next to the frame by the trans bell housing very tight location but is possible to change need a o2 socket that looks like a line wrench but beware if its seized you will have to heat with a torch or you will rip the threads out of the pipe/cat

theres always one on the intake manifold working its way down to catalytic convertor is the oxygen sensor 1 heater circuit(pre cat conv) signal while terminal #25 is oxygen sensor 2 heater circuit (post cat conv)

Could be water in the transmission oil? I would advise you get the oil changed as a first step

Have someone turn off the engine while you listen to the tail pipe. The exhaust should stop immediately when the engine is tutned off. If you hear a wheezing, smell a sulpher odor or feel exhaust still coming out, The conv is defective. Yes, a restricted conv will cause loss of power.good luck

Bridget, Was the o2 sensor replaced at the same time as the conv? It should have been. If not, it may be the problem and not the converter,. It's also much cheaper. I'd have the o2 sensor replaced before any further. How many miles on the vehicle? Let me know about the miles. and the yr .

I can try to help. The chk engine light is generally tripped by the #2 02 sensor. The one after the cat converter. It 's purpose is to monitor the efficiecy of the cat converter. You state there is a power loss problem also. This loss of power is common when the cat converter is restricted and the exhaust can't escape as fast as needed. . You can tell the converter is bad by a sulphur smell in the exhaust, a wheezing at the tail pipe, Or, the exhaust does not immediately stop when theengine is turned off. Good Luck. Have the cat conv checked and replaced . I hope yhis is the help you needed, Ned

generally, glowing exhaust is a sign of either the engine being severely retarded, fuel mixture being super lean or the catalytic converter on the exhaust being restricted. Check all. Loosing power can be retarded or restricted cat. I'd check cat first.

Assuming you are talking about the O2 sensors - they are both located in the exhaust system.

Bank1 is Under hood, driver side, lower engine area, below exhaust manifold flange, mounted in exhaust pipe.

Bank2 is by Cat.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.