還是從白堊紀就出現的P0420,換過新貓,開了5000邁後,又撐死了。於是就繼續瞎搞。
這一篇是很多次小工程,集中以後貼出來的圖,粗粗整理了一下順序。反正是瞎搞。
從 exhaust manifold一路向下 查漏。這是從車底拆manifold與flex pipe的連接
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driver side螺絲下邊是上遊氧氣探頭當路,要拆
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從hood向下看。上邊要拆隔熱板
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拆manifold
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黑忽忽的積碳。紅圈是block後邊的coolant排放孔
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清理
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拆下來 ,全部檢查和 清理
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檢查螺栓
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換套新的。彈簧長度略有差異
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密封圈,有積碳,但沒有明顯漏痕或損壞
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檢查接口
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檢車氧氣探頭接口
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舊密封圈比較低
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新圈壓縮空間較大
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檢查對接
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檢查點火係統
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翻閱手冊,說coil沒法檢查
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後邊的放水孔用上了。對,這是換coolant
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換thermal
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最終以上動作都沒能阻止強大的P0420回歸。於是又買了新貓,比上次的新貓貴,結果對接更加不好。後來退貨,買了焊接工具。預知後事如何,且聽下回分解。
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