s********d
发帖数: 62 | 1 corolla二手车的engine灯亮过，dealer用电脑查出来是P0446。现在已经弄好。只是不
知道这个问题到底有多大。因为dealer说，如果下次同样的原因亮灯就要换整个电脑系
统了。想问问，是dealer吓我还是问题真的很严重呢
我查过这个code，好像是引擎里的阀门开关控制部分。最坏的可能就是汽车忽然停在路
中间，比较轻的可能是费油，因为汽油无法燃烧充分。在我引擎灯亮的时候，我曾经可
以在驾驶座上闻到尾气，以前是绝对闻不到的。
想请大家帮我参考一下，这辆车还能撑个1年吗？ | s********d
发帖数: 62 | | I*D
发帖数: 40035 | 3 Causes
A code P0446 could mean one or more of the following has happened:
Faulty vent valve
Open, short or excessive resistance on Vent valve control circuit
Blockage of vent valve
Bad PCM
Possible Solutions
With a P0446 OBD-II trouble code, here are some things to try:
Replace Vent valve
Repair open, short, or resistance problem in control circuit
Repair open, or short, or resistance problem in power circuit
Replace PCM | s********d
发帖数: 62 | 4 Thanks. It seems like there is no way to say what specific problem my car
had. Wish my car is not that bad.
【在 I*D 的大作中提到】
: Causes
: A code P0446 could mean one or more of the following has happened:
: Faulty vent valve
: Open, short or excessive resistance on Vent valve control circuit
: Blockage of vent valve
: Bad PCM
: Possible Solutions
: With a P0446 OBD-II trouble code, here are some things to try:
: Replace Vent valve
: Repair open, short, or resistance problem in control circuit
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