Okay, so my truck tripped the "Check Engine" light while I was down in Virginia over the weekend. I didn't have my OBD II scan tool with me, so I had to wait till I got home to find out what tripped it. I was not about to hand out $90 to a mechanic just to plug in the scan tool, plus the cost for labor and parts. It would have ended up costing me about $400 to replace something I could do myself. In fact, my scan tool cost me $145 when I first got it. After two uses, it's already paid for itself.
Well, I drove home and plugged in my scanner. The code pinged back with P1135 - faulty air/fuel ratio sensor. This is the one that comes before the catalytic converter. So I did some research at all the auto parts stores - Auto Zone and Advanced Auto Parts. I even went into Toyota to find out how much they wanted for it. Can you believe they want $215 dollars?? Advanced Auto Parts wanted $205 for the Bosch one. Auto Zone was the lowest with $115.95 for the same one by Bosch. Guess where I'll be getting my A/F sensor from.
So far, after I reset the truck's computer with the scan tool, the "Check Engine" light has not come back on. In the interim, I replaced the air filter, while I wait for the new sensor and gasket to get here. This should allow more air into the intake manifold and increase O2 to the air/fuel mixture.
Looks like I'll be crawling under my truck some time next week. I hope nothing else comes up for a long while.