Ask help: check engine light on

2003 Toyota. Camry  check engine light is on ,code scan is fuel/air ratio not right  oxygen sensor bank1, then bought the sensor installed , now the light is still on, code scan , this time is p0031 o2 sensor heat control is  low . So what should I do next? Thanks

所有跟帖： 

• 首先想到的是，换上的是否是个正确的型号。 -史迷- ♂ (121 bytes) () 11/03/2014 postreply 11:09:24

• www.rockauto.com 网页设计的很好，part number 很仔细，可以考虑上他们那儿买，不容易出错。 -卵世佳人- ♀ (424 bytes) () 11/03/2014 postreply 14:38:41

• 同意上面，针对p0031 code， 可能是你用的OEM part 阻抗太高，或者线连接有问题，电流太低了 -soccer88- ♂ (0 bytes) () 11/03/2014 postreply 12:46:03

• 对于丰田，S1=A/F, S2=O2. Heater 只在冷车时起作用。热车时会被ECM关掉。heater 阻值可能会是问题。更 -加国五台山- ♂ (84 bytes) () 11/03/2014 postreply 15:48:45