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Both errors started at the same time, (slow switching time pre CAT O2 sensors). OK maybe bad gas contamination, reset ECU, new pre CAT 02 sensors from JAE, fresh fill with premuim, run drive cycle, set MIL again, same error codes. But, switching times reported by my scanner show as passed with 0.45 and 0.62 seconds rich-lean and lean-rich. No changes to engine no other parts swapped in/out. I am hoping someone may have seen this before. All other PIDs returned look normal. Something strange is going on. The switching waveform using Peters software looks more like a triange wave than a square wave but I have not used Peters software before, I normally use ODB-2.com's Vechicle Explorer.
 
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