Last November, my check engine light on my 2009 Toyota Tacoma came on. After an initial testing, it was determined from the codes that either the camshaft or crankshaft sensors needed to be replaced. Both were expensive repair items that I could not afford at the time. This past week, after receiving my stimulus payment, I took the truck to CO-Auto. It was discovered, through their state-of-the-art diagnostic tools, that the sensors and the wiring were working perfectly. It was determined that two teeth broke off the gear of the camfaft timing chain which caused the check engine light to come on. That diagnosis cost $172 and was well worth the cost considering it saved me the cost of replacing any sensors. Good work Anthony and CO Auto!