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Old 10-13-2013, 08:34 PM   #7 (permalink)
hxman
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I just replaced the pre-cat sensor but still 33mpg

Can you please tell me what I should do next, I have cleaned the egr chamber, but I don't know what to do next (no CEL) I bought a NTK sensor off ebay but I haven't seen any CEL or mpg improvements.

I realize that o2 sensors are expensive guesses but I wonder if you guys can tell me what to do next. I have replaced, plugs, the distributor cap and wires. The car runs pretty well and I just had the timing belt job completed (valves adjusted too).
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