dustin0907 wrote:
零件跟lexus比真的便宜，不過汽油濾芯會讓電腦亮燈真的不了！
我也搞不懂"換甚麼汽油濾心"，送一點英文大家研究一下：
P0172 OBD-II Trouble Code
Basically this means that an oxygen sensor in bank 1 detected a rich condition (too little oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.
Possible solutions include:
•Inspect all vacuum and PCV hoses, replace if necessary
•Cleanthe MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
•Inspect fuel lines for cracks, leaks, or pinches
•Check the fuel pressure at the fuel rail
•Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced.
•Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)
qq7777 wrote:
我也搞不懂"換甚麼汽...(恕刪)
樓主好像沒有提到故障碼P0172
但就這處理故障碼步驟
因含氧感知器偵測到噴油過濃
1. 先檢查進氣真空的部分,有時可能是PCV的管子裂了漏氣...工單沒此費用,所以不是
2. MAF髒了,清潔一下就好了,但這樣店家怎麼賺錢?
3. 檢查油路是否滲漏或受擠壓...工單沒此費用,所以不是
4. 檢查汽油壓力 ...還好沒說汽油泵浦不良,但工單上有汽油壓力調節閥,真的有壞嗎?
如果要仔細一點,就要問技師實測汽油壓力值,手冊規範值是多少?
5. 噴油嘴太髒...工單上也列了引擎清潔套餐,順便也換了汽油濾心,反正樓主很久沒換了
6. 排氣管漏氣, 在含氧感知器之前,雖然機率很低,但還是要順便檢查
我們一般人會希望步驟二處理後清除故障碼再觀察,反正車子也沒有到了拋錨無法行駛的地步
只是一般的小感冒而已,但樓主的愛駒是他的生財工具,可能也比較沒時間這麼慢慢處理吧
反正大部分是保養類的耗材,換掉也不為過
爾俸爾祿，民膏民脂，下民易虐，上天難欺
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