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Hi guys and girls. I have a question for the group. I have a p0420 code so I bought an aftermarket cat. Won’t be here until Thursday. Can’t install until Saturday. I used blaster penetrating oil to remove shield yesterday. I got home and opened the hood. Steam was coming from the o2 sensor area of shield. I almost had a panic attack when I saw this! Coolant is good and oil is always good. Could this be the oil burning off or should I be worried? Drives good but feel like it’s going to hurt my car? I need to get to work. Is steam coming off heat shield a symptom of something major. Thanks.

 
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BTW I have a 1999 civic hatchback dx 5 spd. No overheating. Just slow acceleration going uphill and takeoff and a stumble here and there.

 
Rep Power: 222

Probably just residual penetrating fluid burning off

 
Rep Power: 229

No bro code 420 means its weed smoke, 😎

 
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1999 civic with p0420 code. Hesitation and loss of power uphill. Does this looked toasted to you?

 
Rep Power: 222

Yeah it doesn't look to be in the greatest shape any more, fyi the cheap cats will only last about a year before the computer thinks it's "bad"

 
Rep Power: 222

May want to tap on the rest of the exhaust with a rubber mallet and listen for rattling to see if the exhaust is clogged

 
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I just put an eastern aftermarket on it. I hear rattling by the resonator but I don’t know if I’ll have time to remove exhaust from pipe A back. I can barely lift my arms after removing old bolts all day. Hope it blows itself out. I bought the car for $1200 and didn’t like the idea of paying almost that much on one part. Thanks for the reply.

 
Rep Power: 222

See how it drives, if it still feels sluggish and restricted then you'll have to check. Hopefully just the cat was the problem