d******n
发帖数: 12850 | 1 Nissan engine light在换了oxygen sensor并reset后，到现在都三周了，开了400mile
左右，但是去了两趟inspection，OBD system依然显示not ready，没法通过
inspection。
请教这有可能是怎么原因？能怎么解决？继续多开开？ | h******r
发帖数: 1578 | 2 what is not ready? O2 or other things? | s****i
发帖数: 5469 | | P*B
发帖数: 944 | 4 要一定的driving pattern才能遍历所有的monitor状态。
我去年搜到过一篇东西
晚上回家找出来给大家link | d******n
发帖数: 12850 | 5 EVAP 和 oxygen sensor，EGR systems
【在 s****i 的大作中提到】
: 哪项没准备好，EVAP么？
| P*B
发帖数: 944 | 6 Sorry
昨晚回家太忙
今晚一定
【在 P*B 的大作中提到】
: 要一定的driving pattern才能遍历所有的monitor状态。
: 我去年搜到过一篇东西
: 晚上回家找出来给大家link
| P*B
发帖数: 944 | | d******n
发帖数: 12850 | 8 多谢多谢。包子送上。
下面这段似乎最重要。看来可能是因为没开空调调试，明天按这些步骤弄一遍看看。
For the first part of the test, Part A, the vehicle idles for exactly 2.5
minutes, with the A/C and rear
defroster turned on. During this time, the O2 sensor heaters, the AIR system
(if equipped), Misfire, and
the EVAP purge Monitors are run. In Part B, the vehicle accelerates to 55
mph at throttle. Here, the
misfire, fuel systems, and purge Monitors are run. In Part C the vehicle
runs at a steady 35 mph for 3
minutes where the HO2S, EGR, purge, Fuel Trim, and AIR monitors are run. In
Part D, the vehicle
decelerates from 55 to 20 mph where the EGR, Fuel Trim, and purge Monitors
are run. In Part E, the
vehicle accelerates to 55 to 60 mph at throttle. Here the misfire, Fuel
Trim, and purge Monitors are
run. In Part F, the vehicle operates at a steady 55 to 60 mph for
approximately 5 minutes. The catalyst,
misfire, HO2S, EGR, purge, and fuel trim monitors are run. In Part G, the
vehicle decelerates, ending
the test drive cycle while running the purge and EGR monitors. If all
Monitors run successfully, the
vehicle will pass its emissions testing, and all Monitors will indicate 搑
eady
【在 P*B 的大作中提到】
: http://genisysotc.com/pdfs/DriveabilityDiagnostics.pdf
: see page 9, IM240 Emissions Test
| t*****g
发帖数: 7455 | | d******n
发帖数: 12850 | 10 400 mile 还不够多啊？ｌｏｃａｌ和高速都有
【在 t*****g 的大作中提到】
: 开的不够多吧
| P*B
发帖数: 944 | 11 有娃以后开车温油多了，有一步要3/4油门hold到55mph
我当初是换了catalyst converter以后EVAP和CAT monitor不ready，Google了几个晚上
，找到了这个，出去照着开了一遍就好了
【在 d******n 的大作中提到】
: 400 mile 还不够多啊？ｌｏｃａｌ和高速都有
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