Holy DTC code hell!!! 2008 Limited

[alia176]

I'd be interested in a write up on this as well. Actually, I've never heard of anyone cleaning the cats but if you figure out a way, let us know. I've seen cats contaminated from leaded fuel but those simply got replaced. I have also seen the ceramic honeycomb inside shatter from misfires. Some collapse into themselves and plug up the exhaust while others blow out which results in a cat inefficient code and possibly a rattle in the exhaust downstream.

I might end up finding those issues as well but hoping not!

 

[lbhsbz]

Change the MAF

 

[Sichko]

Did you guys figure out the second problem? I just went out for a quick drive (maybe 3 miles), parked it for 10 min and when I came back, it wouldn't idle and I got both lean codes. I was able to limp it home. It seemed to run decent once I got it out of first gear.

I think that this question was to me. Update on things - it was the fuel pump again. I had it replaced with a Toyota part and it has been running perfect for the last month or two.