Try Techroline
Just a suggestion. Try putting a bottle of Chevron Techrolean in you fuel tank at your next fill up. Comes in a black bottle and available at most auto parts stores. It will straighten out your fuel system and usually cures a rough idle. I do a bottle at every oil change. Works great, its worth a try.
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Adjusting to the temp changes as fall approaches possibly.
A/C on or off?
How many miles and have you looked the spark plugs? -
edit: Never mind. Found the thread that addresses this.
Jim -
This might all be in my head, but I have made a couple of mods, changed my driving habits and I believe we just went to winter gas here. So, I disconnected the battery and flashed (rebooted so to speak) the ECU. Things seem to be much better. I did this once before and thought it helped then too. Is there anything to this or merely my seat dyno??
Jim