How can you test the coils??

 

With the car off, unplug one at a time, turn on your car, if the idle doesn't change, it's not good, if there's a huge difference in idle, that coil's good.

I have an xB, and wife has an xA; so I pulled mine, and put them in hers, to double check, and it was the problem. Bought new ones, no CE, and car is running good.

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I'm new to Scions and just purchased a 2006 xB yesterday. The independent dealer I bought it from purchases and sells alot of these and he seemed to know then inside and out. He told me specifically ever have a idle problem or misfire that the first thing to check is the coil packs as 1 or both of them being bad is the most common thing to cause that specific problem. I just watched a video on YouTube of a guys bed and after change of the coil packs, and I believe he said he tried many other things before the coil pack. Now of course we all know that multiple things can cause this issue, and I admit I am no expert, however after what my dealer said and after watching the video I watched I just thought I would share the information that I've learned in the short amount of time I've owned the vehicle.

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