wrote in
:

> Hello all,
>
> The check engine light of my 91 Accord has been coming on
> intermittently for the past few weeks. Upon jumping the service check
> connector, I'm receiving the following error codes:
>
> ECU code 17 (vehicle speed sensor)
> ECU code 41 (oxygen sensor heater)
> S light gives 4 short flashes (I'm assuming this is TCU code 4, and
> don't what that means)
>
> Can anyone tell me what TCU code 4 means? I replaced the vehicle speed
> sensor a year ago (with an inexpensive one from eBay), and the TCU
> unit a few years ago (with a refurbished one). The speedometer and
> transmission seem to work fine, and the car runs like it used to.



"S" light code 4 is
- faulty speed sensor
- short or open in speed sensor wire
- disconnected sensor coupler

Your 4 and 17 are likely related to the same problem.


>
> Given the age of the car, would you recommend that I just ignore the
> check engine light, and keep driving for now?
>


If there are no symptoms other than the error codes and the vehicle drives
normally, then you can ignore the codes.


--
Tegger