Newbie... Just want to make sure I get this right. As revealed in a few other threads, I have a 2000 X I bought a month ago that needs a lot of work. Finally got the engine running smoothly and still a lot of work to do with tranny and suspension. I have not been able to clear the P1000 code with over 200 miles on the truck. The module that hasn't completed is the O2/HTR. Want to replace the O2 sensor (I believe there are 2) in the hope that this will clear the code. I need to get it through emissions this month so I can register it.

I would appreciate if some could give me a clear description of where they are located. Top of engine, bottom of engine? I see a what looks like an O2 sensor on top near the 6-10 cylinder bank but the pigtails don't match what I purchased as replacements. There looks like one also to the right and behind the alternator which looks like I'd need to remove the alternator to get to.

Just don't want to mistakenly replace the wrong thing.

Appreciate any pictures for any that may have done it already. Thanks.

 

There are O2 sensors in the exhaust pipe just behind the connections where the pipes bolt to the exhaust manifolds.

 

RGR. Thanks! I'll see if I can get those changed today - weather permitting.

Appreciate the quick reply.

 

That won't fix the problem as I understand it. You most likely have a 49 state truck that is OBD1 and only has one set of O2 sensors. The computer sets the code for the non-existent sensors that are present after the cat on cali emissions trucks.

Read this thread. https://www.ford-trucks.com/forums/1...adventure.html

 

Truck was previously registered in New York and Maryland. So - not a Cali vehicle.

What do you think it could be? Bad PCM?

 

I see that you are right up the street in Lorton, VA. I'm in Fredericksburg, VA within the Stafford County. With that said, when I initially got stationed at Quantico the wife and I unknowingly bought a house in Stafford County not knowing anything further south of our location would NOT require an emissions inspection.


Because the Excursion is our 4th vehicle, I mistakenly assumed when I bought it that it would require an emissions inspection like any of our other cars. I was WRONG.


I went to DMV armed with my newly acquired title to find out what I needed to complete my titling and registration of the vehicle and was pleasantly surprised to discover that the state of Virginia would not require an emissions inspection on the Excursion based solely on it's listed GVWR! The DMV representative told me that anything over 8500 GVWR (I'm not 100% on that weight) does not require the emissions. She issued me my new title and registration and told me all I needed was safety inspections from there on out.


Additionally, the gentleman I bought the Excursion from lived further north in Woodbridge, VA and when I asked him if he had any problems passing emissions, he stated that he never had to have emissions inspections because of the weight of the vehicle. This was all news to me and I didn't exactly believe him until I went to DMV and learned first hand.


This is a very long way of saying that I'm not sure that you'll need to pass emissions to register your vehicle. I can't assure you that this does not vary from county to county as I know that most counties in Virginia require no emission inspections at all.


I hope that information helps.

 

I answered you PM prior to reading this post RTrud, but it sounds like your initial question was answered as to the O2 sensor locations. But just for future readers searching for the same info here are two pics to illustrate the locations.

All V-10 will have these 2 sensors in the Y pipe between the exhaust manifold outlets and the actual Y of the Y pipe.


And Cali spec built trucks will have a third sensor located just after the cat on top of the exhaust pipe.

 

I think there is nothing wrong with it at all.

 

I think Eric has got your issue nailed right there!

 

Appreciate the info... Looked at the website and it looks like your vehicle is likely a diesel. This is what the DMV website for VA states:


Which vehicles require an emissions inspection?

Certain vehicles require a Virginia Emissions Inspection PASS or WAIVER before DMV can complete the registration process. The requirements are categorized by fuel type,

• Gasoline-powered passenger or property carrying vehicles with a model year that is less than 25 model years old before January 1 of the current calendar year and with a manufacturer's designated gross vehicle weight rating of 10,000 pounds or less
• Diesel-powered passenger or property carrying vehicles with a model year of 1997 or newer and with a manufacturer’s designated gross vehicle weight rating of 8,500 pounds or less

and apply to vehicles that are registered in one of the following localities:

• Counties of: Arlington, Fairfax, Loudoun, Prince William, and Stafford
• Cities of: Alexandria, Fairfax, Falls Church, Manassas, and Manassas Park

All local, state, and federal government vehicles registered or operated primarily in the Northern Virginia program area are subject to the emissions inspection program. In addition, Section 118 of the federal Clean Air Act requires that any employee of the federal government commuting into the program area and operating their vehicle on a federal installation comply with the emissions inspection program. Federal employees should contact their individual agency about compliance with this federal requirement.

 

I do have a diesel and sorry about the bad scoop. The DMV rep never mentioned that I was exempt because of fuel type and weight. She just told me I was good to go because I was over 8500 lbs.


I definitely consider myself fortunate with regards to the Ex not having to pass emissions. I have had some cars in the past create real nightmares when trying to diagnose a check engine light just to pass emissions within the 30 days of purchase.


I'm not too far down the road and if there's anything I can do to help, let me know. Good luck.

 

Done12many2 - thanks for the offer.

Just got the truck to emissions today and she passed with no issues. I think because the truck was a 1996-2000, it was fine having 2 of the modules not completed... I never got around to replacing the O2 sensor - I will this weekend. The tailpipe tests passed with lots of room to spare. The new plugs, coils and oil change made a big difference there I think.

So - don't have to worry about it for 2 years or until I move to a lower or western county.

 

Congrats! It's a good feeling to know that you're sorta safe for a couple of years.

I'm in the middle of getting all my vehicle inspections/emissions renewed and my oldest vehicle just failed the safety inspection for a torn boot on the steering rack.

Absolutely no doubt that they failed it simply to make a buck as many shops here do, but they are well within the law to do so. They were pushing hard for me to authorize the repair implying that it was my only option. When I told them that I will handle the simple repair myself, they were then willing to tell me what I already knew. That I had 15 days to get it done without paying any additional fees for the inspection. They also attempted to list a generic reason for my failure on my receipt, at which time I asked them to list the exact part they failed me for. With a generic description they would have been able to reinspect a broader scope. With the exact part listed, all they can do is check to see if I repaired what they failed me for, which would result in an immediate pass.

Between emissions and safety, the total for inspection fees per vehicle is $44 plus whatever the registration fee is. It's time to get rid of a car or two!