I dropped my vehicle at Chandler West for a fuel system problem. Chandler West replaced my fuel pump about a year ago, and I thought the symptoms were very similar. After diagnosing my vehicle, they called and told me that the fuel pump was defective. They replaced my fuel pump ($600). When I picked up my car, it was slow to start. They assured me it was okay, but by the time I got home I realized I still had the same problem. After a quick internet search, I found my problem could be caused by my fuel filter/regulator. I replaced my filter/regulator, a $27 part. This fixed my fuel problem. When I called Chandler West to explain, they still charged me $600.
I had a similar issue with Chandler West about six months ago, but in that case it involved a crank position sensor. It turned out the problem was with the cam position sensor. That ordeal ended up costing me $200.
Chandler West is great at swapping parts. Just NOT so good at diagnostics.