91 b2200 check engine light meaning?

Hi,
I did a major tune up on this FI auto tranny 2200. Runs good, but now getting check engine light when cruising on the highway. Searched forum here and learned how to check engine codes(thanks). I'm getting error code 17, which is "Internal ecm feedback system" "Located on ecm circuit board". Anybody know what this means? Does this mean the ECU is going bad. I had it repaired in 1999 with the bad cap issue. Any help would be appreciated. :confused:

RussC

whats your KM's ( or miles ) at , Mazda put in this little trip device that turns on your CHeck Engine light at 80though and 100 though or something like it , it sounds like that to me , its a simple matter of moving a wire from one socket to another to turn it off.

Thanks for the reply, I have 180k miles. I've put 100k miles on it now. I guess that could be it. I'll try and reset it, see what happens. I just installed a AFR gauge also, well see what that says.

RussC

Update,
I got hold of the factory info. The MIL(malfunction indicator light) is dependent on where the car was sold. I have a California truck. There are no reset connectors in a CA truck. The reset conns are only in Federal or Canadian vehicles. The CA computers are reset by removing power to the FI computer. I'll see if this works tomorrow. The reset conns are used in conjunction with a milage indicator that counts milage and then sets the MIL at 60k and/or 80k miles.

RussC

Thanks for the reply, I have 180k miles. I've put 100k miles on it now. I guess that could be it. I'll try and reset it, see what happens. I just installed a AFR gauge also, well see what that says.

RussC

Oh, to be complete, the CA trucks don't have the milage counter stuff.

RussC