spark: 先換德國博士四爪, 後改日本二爪.
air filter: 一年一換.
engine oil: 3K 邁一換.
PCV:換了.
throttle: 洗了幾遍了.
vacuum...???聽不到漏氣聲, 沒測過.
Any OBDII code even: 有過一次, 換 MAF sensor 後好了.
when you passed inspection: every year.