S80 2.9 Emission System

  • Thread starter Thread starter Noa
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Noa

S80 2.9 2000 - 75,000 Km

Emission system Service required

What does it mean - What to expect

Thanks
Eran
 
I have the same problem, on my S80... it shows on the codes on the scanner
that an fault on OXYGEN SENSOR, is a code for each of the four
installed.Also be sure that your fuel cap is very well tight, and Dont
overfill tank, and use PRIMIUN fuel only.
GOOD LUCK
HAPPY HOLIDAYS
Carlos
marijet
 
Noa said:
S80 2.9 2000 - 75,000 Km

Emission system Service required

What does it mean - What to expect

Thanks
Eran
Click to expand...
I expect that is the same as the US "MIL" (Malfunction Indicator Light) or
"check engine" light. It means any of a number of things can be wrong with
the emission control system. As Marijet points out, it can be as simple as
the gas cap loose. (If so, the light will go out after 3 or 4 warm-up cycles
after you tighten the cap.) It can also mean a bad O2 sensor, a bad
catalytic converter, or that your engine is misfiring. The good news is that
the diagnostic codes are fairly specific, and once they are read - which a
shop will need to do if your gas cap isn't loose - you will know what it is
about.

The car won't be damaged driving in town as long as the engine is running
normally, but under a few failure conditions the catalytic converter can be
overheated if the engine is pushed hard for more than a few seconds at a
time, like high speed hill climbing.

Mike
 
my experience is just on the s80 2,9 -99 -00 "6 cylinders engine"
it´s often the ETM "electroning trottle module"
the other stuff use usally holds
 
My 2001 S60 has had that message in the window for the last few months.
Every once in a while it goes out for a little, but I have not noticed that
there is any power loss.
Dealer tells me that the code is related to the cat converter... and its
$1100 to replace.
I Think I'll take my chances...

Charlie
 
CD said:
My 2001 S60 has had that message in the window for the last few months.
Every once in a while it goes out for a little, but I have not noticed
that there is any power loss.
Dealer tells me that the code is related to the cat converter... and its
$1100 to replace.
I Think I'll take my chances...

Charlie
Click to expand...

I'm afraid the light will become more persistent if it is indeed the cat.
(The codes are usually right about that.) But $1180 is outrageous.
Independent shops will quote you a small fraction of that, I'm sure. If you
are in the US the emissions system, including the catalytic converter, are
required to be covered by the mfr for quite a number of miles... your 2001
may qualify. Anybody here know the details?

I had the cat replaced on our 85 765T a few years ago, and it cost around
$100 US parts and labor at a local muffler shop my friends recommended.

With that failure you won't notice any power loss unless the catalyst is
melting - an unlikely possibility if the engine is running okay otherwise.
The main negative effect is an increase in emissions.

Mike
 
My 2001 2.4T has 125k miles on it, so its not under warranty anymore.

I live in PA. The funny thing is that my emissions inspection was due last
month. I couldn't take it in because of the light, so I just kept driving.
One day while coming home from a business trip, the light went out. I
quickly got it into the shop for inspection and it passed.

While driving home from the inspection, the light came back on again.

I guess it was just luck...
Charlie
 
CD said:
My 2001 2.4T has 125k miles on it, so its not under warranty anymore.

I live in PA. The funny thing is that my emissions inspection was due last
month. I couldn't take it in because of the light, so I just kept driving.
One day while coming home from a business trip, the light went out. I
quickly got it into the shop for inspection and it passed.

While driving home from the inspection, the light came back on again.

I guess it was just luck...
Click to expand...

If the computer stops getting a signal for the particular fault for a
certain time (usually a couple medium trips, but it's slightly more
complicated than just that), then the light will go out. This is to
deal with spurious fault codes that are not actual malfunctions.

The computer in your car may or may not know why it turned the light
on. Here is why-

The computer takes a "snapshot" of what the engine was doing when the
fault occurred. If the fault ceases, the snapshot is supposed to
remain in the memory for ten driving cycles (the light will have long
gone out on it's own). The electronic equipment to read the snapshot
is more expensive than the popular hand-held code readers, and most
mechanics charge a nominal fee to plug the machine into their car
(hey, they have to make up the cost of the thing somehow).

Also, some faults need to happen twice to make the light go on. The
code for the fault will be stored as a "pending code," and it can be
read by an inexpensive code reader or expensive diagnostic equipment,
but the light will not be on in your car.

For more than you might want to know, try a web search on "OBD2."

One last thing, right now you really have no way of knowing if it is
a serious problem, more than one problem, or a relatively unimportant
problem.
 
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