I have read through a few forums, but have not seen an answer for my problem yet. My caliber wouldn't start a couple of months ago, I was able to figure out it was the fuel pump and replaced it. A couple of weeks ago it died on me while coming home. just lost power on the road while driving. Turns over but will not start. I have tested one of the coils for spark, I do hear the fuel pump running when I turn the key, and I also ohmed out the coils, and the fuel injectors. I picked up a set of noid lights and tested one of the fuel injectors, but I have to charge the battery as it sat for 2 weeks and I have been cranking it a lot. I did have 2 codes, Po171, and Po113. these may have been when I disconnected the air flow sensor and tried to start it. at any rate, I don't think either of those codes would keep it from running. I also changed the crank shaft sensor, even though I was pretty certain it was not the issue. Please help, I am out of ideas.