P0137/p0157 power loss

[Clay_Lucas]

Been having this issue for about a year slowly getting worse. just replaced both down stream 02's and the fuel pressure reg. After I did the regulator I noticed that the power was much better at first, after a few drives it's started to come and go. Sometimes it feels great and then it will bog down, not want to move very quickly and won't be very responsive.

 

If I'm under increased load (going up a steep hill) and I push the gas hard I get the P0137/P0157 codes. I took these screen shots of the 02's using the torque app.

 

Top 2 are the down streams, then up streams and rpm/maf.

 

 

 

 

 

 

 

 

I'm starting to think it's the cats, I've heard some good stuff about the cataclean additive, but I'd like to hear some other opinions before I spend $50 for a gas additive.....

 

Any ideas?

 

Thanks

 

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[Clay_Lucas]

Finally got the p0420 code so it's the cats. Taking them off until I can afford replacements. Napa has kits for $10 each to bypass them.

 

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[txab]

Yep, I would have had the cats checked right off with those codes and your symptoms

[Clay_Lucas]

I was really hoping it wouldn't be them.

 

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