Re: 99' altezza power loss problems
My 98 Altezza RS200 had the same problem about 2 months ago, but the check engine light didn't come on. My problem was that one of the Heating Coil Packs (one sits on top of each spark plug) had gone out, so only 3 out of the 4 cylinders were firing. I had all 4 Coil Packs replaced (since they all tend to have the same life expectancy) and spark plugs replaced with brand new Iridium plugs. Total cost, including labor, was about $810.
Each Coil Pack was about $165 and the Spark Plugs (Iridium) were about $18 each.
Hope this helps
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