Check engine and trac off came on today after 1/2 hour on the highway at 85mph. Checked the code and got 25 (Air/Fuel ratio lean). Did a search and came up with only two threads and people guessing it might be the 02 sensors.

My problem is, I don't have a knowledgeable dealership anywhere near, so I'd appreciate it if anyone could confirm that it actually is an 02 sensor issue (at least most probably), or what else I could check / do. I'd just order the parts and do it myself if its the 02 thingy.

Edit: Should have mentioned it's a 93 SC400.

Thanks for the help.

Btw: The O/D light flashed six times when I checked the code. Is that normal?

 

Really could use some help here ... lights came back on again today. I've got a couple of parts ready to be shipped from Steve Ganz. Would be great if I could add whatever parts I need to that order.

Anyone want to give me his best guess?

 

o2 sensors.
i would say the 2 front main o2 sensors.