Engine Mechanical problem
2001 Chrysler PT Cruiser 4 cyl Front Wheel Drive Automatic 162123 miles
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I owne 2001 PT Cruiser at 162000 mi, It runs grate
but my exhuast manafold glows red new cat and O2 senser on cat, exhuast has good output can this be bad EGR valve or something more? (no engin light)

check firing order
catalytic converter job is not to allow unburned fuel out the tail pipe extra fuel
it act as a furnace to burn
check if u have any unmetered fuel entering the system
check timing