I just had service done on my 2001 Mitsubishi Montero Sport last week and the "Service Engine Soon" light just came on today. My Montero Sport has 67,000 miles. Any suggestions?

If you are sure that you had it "fully" serviced then don't worry about the light, it will go out after you put some more miles on. They should have reset it when they serviced it.

i notice on my 2001 montero limited i get that same light coming on only when i tow something or when i'm really stepping on it??? i think it throughs the computer off for a while because under normal driving the light comes off after normanl usage??

service engine soon light is most often caused by an air/exhaust sensor if the light is on steady get it checked eventually if the light is flashing get it checked ASAP.

take it to autozone or something and they hook it up to tell you what the error code is

You should bring it into the shop and insist that they look into it for free. Don't wait too long or rack up alot of miles from when you drove off from that particular shop or it might be more difficult to get them to do it free of charge. No matter how trained or skillfull the technician (or not), there is always such a thing of making a mistake. There are many different reasons why that check engine light came on- have it checked out so you know for sure.

Joel, CA

I have a dealer down the few blocks. Does not help. Will charge me $70.00 JUST to look at it and put my Montero Sport 2002 on their computer. I had already gone to AutoZone and was told "for free" the codes po161 were for Oxygen Senor 2, bank 2. I had also gone to a Firestone first just to get a price range with this code in hand. Rep stated almost $250 WITH no guarantee that light would come off. Basically dealer quoted me same price. I guess I will save up and see what they can do. By the way I have been driving it this way since Feb 07

Look at the date of the post.........2005