On 3/19/09 11:51 AM, in article 49c2781d$0$22505$607ed4bc@cv.net, "murray"
<murraysch@optonline.net> wrote:

> I'm having a problem getting my car approved in its yearly inspection and I
> don't understand why.
> My battery had completely discharged and the mechanic says the computer has
> to go through its own calibration before the car can be accepted.
> In particular he said that the car had to be driven for at least 20 miles at
> 60+ mph.
> After this was done, he said there were still 2 problematic "monitors" that
> had to be addressed. Which were:
> 1. The car may have excessive gasoline in the tank. He recommended burning
> off gas till the tank was half full.
> 2. He said that its possible that there may be excessive vapor in the fuel
> system. (wouldn't that be influenced by item 1.?)
> I am completely puzzled by this whole thing. I always thought that, if there
> was a problem, a sensor would indicate an out range error and point to a
> possible problem component via an error code.
> Why is this situation not conventional?
> The mechanic claims that he has a bulletin document from Honda which
> describes this. Does anyone out there have any knowledge about this?
>
>
>
Its pretty normal for all OBD-II cars to have to execute a predefined "drive
cycle" after the ECM has been reset before the monitors come up "ready". It
varies from car to car exactly what the sequence is. Be glad you have a
Honda. Some of the mid-90's Nissans have incredibly convoluted sequences
that usually take weeks of driving before they come up "ready".