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Found this forum and thread while searching for a solution to very similar symptoms with my 98 2.2L S10 (~130,000miles.)
A _slightly_ rough idle has been present for many months. Within the last two weeks - power/performance dropped rapidly (still idles OK). Now, vehicle is really sluggish, won't accelerate much past 3500rpm, and bucks badly at constant speed - 35mph/3rd - bucking stops if I step on accelerator. Bucking is worse in lower gears. Battery is fine. Fuel filter is new. Only engine code was AirIntakeTemp sensor (P0113) high - which I probably caused by forgetting to reconnect. Spark plugs must have at least 40k on them.
I've purchased new plugs after reading this thread, but because the problem worsened so quickly, and because it doesn't run rough (like non-uniformity between cylinders/plugs/injectors), I doubt the new plugs will solve problem. It seems like a problem affecting all cylinders.
Any help/insight would be appreciated
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12-06-2004, 09:12 PM
