P0125, P0171, P1130 error codes

[jburgessmd]

I am new to this group, and really only want to pass on my experience I just had with my 2001 Tacoma 4wd extended cab.
I love my truck and it has never given me a problem.
About a year ago I had someone steal my Catalytic Converter and the rear O2 sensor and had to get them put back in through my insurance. What a pain.
Fast forward 1 year and I had a Check Engine light come on a few weeks ago.
It went away so I ignored it.
It came back on about a week ago and the codes that it kicked out were P0125, P0171, and P1130.
In reading many articles and forums it sounded like a dirty MAF sensor. In my truck it's pretty easy to get to. Two Phillips screws, and carefully remove it to clean. I let it dry overnight, reset my codes, and drove to work. The Check Engine light came back on.
I ordered the front O2 sensor because I found out that one of the above codes indicates the front O2 is bad.
I replaced this front O2 sensor and the problem has been resolved.

My symptoms were:
Check Engine light obviously.
Gas mileage dropped by 5mpg.
Rough idle, but not awful to be honest.

Resolution:
Cleaned my MAF, which didn't resolve my problem but probably good that I cleaned it anyway.
Replaced my front O2 sensor for $145.

If you shop around you can get it for this price, and probably cheaper. I saw this part as high as $200 so it was worth looking around a bit.

Hope this helps someone out there.
Jeff