Code P1157

[vkendea]

Hi there,
there is a few days now that I have chech engine light on and this is because of the error code P1157.
that means that I need a new air/fuel ration sensor. this is the first sensor on the catalyst.
I check the honda epc and it gives two! there is one for the cars that produced before 2009 and one for the rest which are manufactured after 2009.
what might be the deference I have now Idea. is this a problem that might be a result of a wrong mapping?
any ideas?

[Hondata]

P1157 indicates that the o2 sensor heater is high resistance (ie broken). The usual cause is a replacement header which has increased vibration.

[vkendea]

ok... I'm not sure that I understand what you mean with "The usual cause is a replacement header which has increased vibration."

[Hondata]

It the stock header is replaced then usually the aftermarket header has increased vibration.

[vkendea]

ok! but this is a stock one!