Re: Check engine light on 89 LX 5.0
"CBeech" <CBeech23@gmail.com> wrote:
> I have a '91 5.0L and mine does this a lot. After reading the codes, it
> gave me a bad oxygen sensor. After a while these cars start to burn
> oil, which in turn starts to clog the O2 sensor. It's not a whole lot
> to worry about as long as you keep an eye on the oil level. It will
> however continue to get worse. I have heard instances of these cars
> going through a quart of oil every 500 miles. I don't know the long
> term solution for this as mine hasn't gotten that bad yet.
What do you mean gave you a "bad O2 sensor"?
Only the codes related to sensor heater, or slow switching times relate
to a bad sensor. And on a 91, that could well be the the case, if it's
burning oil for, say, the last 50,000.
New sensors will clear that up for many more thousands of miles. And
should improve economy and power some.
If they referred to Rich/Lean, however, that does not point to sensor....
and that is exactly why the guy should bring the codes, themselves.
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!