Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 11/2016 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

Engine Light Problems 850

Hi,

My 1996 850R "check engine" won't go off. I had this problem in 2000 and 2002. Two years later it's on again. It seems that everytime I put the car in the shop for other mechanical problems, three months later (almost to the day) the engine light comes on and won't go off. I have tried tightening the gas cap per instructions from another Volvo owner but it did not help. The car runs perfectly well and I hate to put it in the shop again. It has been on for 3 weeks now. Has anyone else had this problem? I would appreciate all advice.
Thanks.

Viv








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Engine Light Problems 850 1996

I have the same problem. First thing to do is get the code read. I hear many chain-type auto parts stores such as Advance Auto Parts will do this for free in the parking lot. Personally, I bought a device from Digimoto.com for ~$100.00 (price of one trip to the dealer) that interfaces the car to a laptop so I could read and reset the the code as many times as I want. It's great for peace of mind, because you can find out for yourself what's going on.

Does the car run OK? If so you might have what I have - code P0410, Secondary Air Injection System Malfunction. Pretty common in these cars I hear, and tends to be intermittent. It's an emissions control thing that you can ignore pretty much, though you should get it fixed eventually. Mine started acting up several months ago. The first time, I took it to my mechanic, who cleaned the system and told me to watch it. about a month later it came on again, I took it in, he read and reset it and told me to just watch it (I like this about him - he won't do unneccessary repairs just to make a buck). The third time, I got curious and bought the code reader. I've read and reset it a couple of times since then, and it's always the same P0410. Someday I'll get it fixed...

Then again, there are lots of codes, and you could have any one of them...

If you just want to turn off the light, try this: Disconnect the battery for several minutes, then reconnect it. If the fault is only intermittent, the light should stay off until the fault happens again. But be sure to have your radio code handy if you do this.

Good luck!








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Engine Light Problems 850

I just went through the same issue with a 1996 850. Turned out to be a defective throttle sensor (called I think a potentionmeter). Not sure this helps, but you could have it checked.








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Engine Light Problems 850

It has to be read and reset for it to go off. I wouldn't see why you would have to leave it at a shop. Don't you have a shop that you can just bop by and have it read and reset?

Chris







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.