I just got this message on my computer along with a constant "Check Engine" light. Has anyone had this one before? If so, what's the fix? I just had a 75K service, shouldn't this have been covered? Thanks, Gonzo

 

It could be about 100 different things.You need top have the codes pulled and see what they are.

 

When I had that error, It was because my O2 sensor was malfunctioning, and I had to get a new one (didn't have to pay for it). It also might be an intermittent problem, meaning it will go on and off (which is what happened to me). If you need to get a state inspection, wait until the light goes off. A "check engine" light is an automatic failure, and S80's have a problem passing emissions anyway. If you have the Emission system message, the emissions test will probably fail.

 

It could also be a dirty/bad throttle module.
It could also be a loose gas cap.
It could also be a vaccum leak.
It could also be a bad gas pedal sensor.
It could also be a bad evap. valve.
It could also be a bad fuel tank pressure sensor.

ETC

 

Thanks for all the possible solutions, but I'm taking it in to the shop this morning. I will keep you posted

 

My cars light also came on a few days back and I have been advised that the O2 sensor has to be replaced. I was shocked at the price and was wondering if the system can be bypassed, or disconnected. I have only had the car a two weeks and bought it second hand, I hope I haven’t bought a dud !! Do these cars give a lot of trouble ?

 

O2 sensors are somewhat of a problem on these cars.
Most of the S80's are good.There are some that have problems.

No the system can't be bypassed or the car won't run properly at all.
That is one of the most important sensors of the emmissions system.
The sensor adjusts the fuel system and keeps the emmissions levels down.

 

I had this error for about 2 weeks and it went away. I am almost 100% sure it was the gas cap, but it came back like 1 month later 45 minutes after filling up the tank. Like i said, i think its the gas cap, but when i was trying to determine what caused it I also tried this http://apps.volvocars.us/ownersdocs/...Inspection.pdf

I really do not think this had anything to do with it, but it is either my gas cap or the instructions in that link.

Tech would probably know the answer to that.

 

Remove the gas cap and look in by the threads and make sure the rubber seal is seated all the way.

 

Sorry about the delay. JC was right, it was the O2 sensors. I also had the motor mounts replaced and head light bulbs. Needless to say I dropped a bundle. Oh well, did I mention the car runs like champ now?

Gonzo

 

I bet it drives like a new car!!

 

You bet it does! The ride made me forget the grand I spent.

Gonzo

 

Thanks Tech for the information and super fast response

 

No problem Glad I could help.

 

I just got the "Emmission System Service Required" message with the Check Engine light. I checked the gas cap and it differently wasn't on correctly, so I closed it correctly. I just started the car in the parking lot for a couple of minutes and the message did not reset. Can I reset it?

2000 S80 T6, 108K mi

 

Just resolved a similar problem last month. It was my O2 sensor. Cost about $830.00 to repair.

 

Luckily it was the gas cap but it took a couple of days for the message to clear. I was sweaty it because I had just spent $900 on the oil pan "o" rings

 

I own a 1999 S80 T6 and also have the Emissions Service Required and Check Engine errors. However, I took my car to the shop and they told me there might be a small, unnoticeable hole or opening in one of the valves that is inside the engine. I've been using the car for 5 months since with no problems and decided not to spend the money to fix this 'unnecessary' problem. However, it did originally turn off periodically or would tell me that my Fuel Filler Cap is open which may indicate that the problem has to do with the Oxygen sensor.

 

I have a 99 S80 non turbo and the codes that were p1171 and p1181. Can any one tell me whats wrong.
Also are there one or two oxygen sensors.

 

When my emmissions message came up, it came on because my MASS flow air sensor was not working correctly, whats that sensor do(control the air intake), i have a s80 t6!.....