Catalytic converter is glowing red

Hello otisp23

Check to make sure the air diverter valve is not stuck open because it sounds like it is allowing extra air into the exhaust system causing the catalytic converter to glow red hot. Check to make sure the control valve is not stuck open as well.

Here are some guides to help you see what I am talking about

Please let us know what you find.

Cheers

Good to hear I did run across some moe information on the problem for others that visit this post.

If there is no engine light but you pull out codes.
If there are no pending codes, then the light bulb burn out.

The code P0172 means rich, we may agree tha rich fuel has caused catalytic to glow.
The fuel pressure is normal.

The MAF (Mass Air Flow) Sensor is dirty or faulty need to be checked and cleaned.
There could be a vacuum leak.

Possible Solutions

Inspect all vacuum and PCV hoses, Clean the MAF sensor. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling Inspect fuel lines for cracks, leaks, or pinches Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced. Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)

Manufacturer diagnosis

Camshaft timing is incorrect, or the engine has an oil overfill condition EVAP vapor recovery system failure (may be pulling vacuum) Fuel pressure regulator is damaged or leaking HO2S element is contaminated with alcohol or water MAF or MAP sensor values are incorrect or out-of-range One of more fuel injectors is leaking '

P-0720

OSS defective
"Â OSS ground circuit open
"Â OSS ground circuit short to ground
"Â OSS signal circuit open
"Â OSS signal circuit short to ground
"Â Park-neutral switch code present
"Â PCM defective (OSS signal ckt def)
"Â Powertrain Control Module defective
"Â OSS harness intermittent defect

Most likely it's a bad OSS. The OSS is located on the back of the transmission.

You should use 2002 as the year..65 psi is too high. IMO - fuel injection pressure damper (or the fuel pressure regulator) is faulty..Check and test all he other things that mathiaso mentioned first - if you find the problem it will be cheaper than a regulator..

https://www.2carpros.com/articles/catalytic-converter-replacement

BTW - you still need a cat. converter -- and you should just replace all of the O2 sensors..

Prior comment about cleaning a MAF with break cleaner or unknown electronics cleaner is an absolute no! You can't use carburetor cleaner, brake cleaner, throttle body cleaner, alcohol, or simply any cleaner on a MAF sensor, as the residual chemicals in those cleaners can stick and destroy the delicate sensors. Instead, a special MAF sensor cleaner is required and should okay be used.

First, never use MAF cleaner with the engine running or even with the key in the run/on position. This can cause major damage to the sensor if it's still attached to the wiring harness and the sensor wire gets hot. It's best to remove it completely from the vehicle and clean it at a work bench.
Second, never reinstall while it's still wet. It must be thoroughly and completely dry.
I apologize for disagreeing with a comrade. But, please only use a dedicated MAF cleaner.