O2 Monitors Not Ready
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New User
Joined: Aug 2008
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O2 Monitors Not Ready
Any body ever run in to this problem, I have f 250 5.4 2004. Heated O2 sensor not ready O2 sensor not ready. this is for NY state emissions inspection. I have driven over 500 miles since checking & they are still not ready, 1 of the 2 must become ready for inspection. there are no codes and I have not cleared computer. no check engine light, I have done a complete diagnostic scan checking & monitoring O2 sensors they are functioning correctly. battery was disconnected about 700 miles ago for a while but thats it.
Elder User
Joined: Dec 2004
Posts: 819
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From: Putnam Valley, New York
2 Monitors Not Ready
My 03 F-250 5.4L has had those 2 monitors not ready for the past 2 years. Your inspector has to enter the truck as a heavy duty (over 8800 pounds) vehicle, and then the inspection computer will ask for a sniff test instead of an OBD II test. That's what I had to do.
RON
Logistics Pro
Joined: Mar 2002
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From: Wake Forest, NC
OBD2 communications compatible only for over 8500lbs gas vehicles. Just like the Diesels communicate over the OBD2 bus, but they don't follow OBD2 protocols. There are all sorts of SAE standards that define the two but I don't care to recall what they are.
I've never owned over 8500 lb gas vehicle in MD, I wonder how they do it here, if at all?
I've never owned over 8500 lb gas vehicle in MD, I wonder how they do it here, if at all?
Hotshot
Joined: Jan 2004
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From: St Louis
Step #1 is to determine the GVW. The number 8500# is what comes to memory as the dividing line between LD and HD and the corresponding testing standards that are to be followed.
Steve
Steve
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From: Long Island USA
I go through this all the time with my '01 V10.
The inspector needs to hand-modify the weight code to 8500 lbs or higher.
Then they do an idle sniffer test (which in my case, the limits are so high I could run without a catalytic converter and still pass).
Here's an explanation, somewhat, for the 2001 model year:
https://www.ford-trucks.com/forums/5...t-come-on.html
The problem is, basically, our trucks were not required to have an EGR or O2 sensor after the catalytic converter, NOR some of the other emissions monitors like heated O2 monitor. It's basically called "OBD-I" with an OBD-II interface.
The inspector needs to hand-modify the weight code to 8500 lbs or higher.
Then they do an idle sniffer test (which in my case, the limits are so high I could run without a catalytic converter and still pass).
Here's an explanation, somewhat, for the 2001 model year:
https://www.ford-trucks.com/forums/5...t-come-on.html
The problem is, basically, our trucks were not required to have an EGR or O2 sensor after the catalytic converter, NOR some of the other emissions monitors like heated O2 monitor. It's basically called "OBD-I" with an OBD-II interface.
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Joe Kucinski
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
For 2004, here's a link to a PDF that shows the same things:
http://www.motorcraftservice.com/vdi...f/OBDSM407.pdf
http://www.motorcraftservice.com/vdi...f/OBDSM407.pdf
New User
Joined: Dec 2010
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9900. When it weighed for testing though it was 6000, can the smogger bypass in Ca?
It passed two years ago at the same shop so I would think the guy would be aware of this but I'm at a loss, and the loss somehow just keeps growing. Thanks KREWAT
It passed two years ago at the same shop so I would think the guy would be aware of this but I'm at a loss, and the loss somehow just keeps growing. Thanks KREWAT
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
It sounds exactly like what I used to go through here in New York. Some shops would try to hook up to the computer and scan it as an OBD-II compliant vehicle, when it's NOT.
Check your underhood emissions sticker. It may (or may not) say OBD-II compliant. If it doesn't say it, or it says OBD-I compliant, point that out to the inspector.
Here in New York, they go either by the weight of the commercial registration (the GVWR) or the weight on the passenger registration which is unladen weight. I have a passenger-car registration, so the guy looks at it being 5600 lbs and thinks it should be OBD-II compliant. Trick is, it's an 8800lbs GVWR, which is over 8500, which means that it doesn't HAVE to be OBD-II compliant. To get it passed correctly, the inspector has to manually enter the "weight code" as over 8500lbs, and then it says "do an idle sniffer test" instead of plugging into the OBD-II port.
I believe your inspector needs to realize it's over 8500lbs, or some other magic number, and then they will pass you the right way.
Check your underhood emissions sticker. It may (or may not) say OBD-II compliant. If it doesn't say it, or it says OBD-I compliant, point that out to the inspector.
Here in New York, they go either by the weight of the commercial registration (the GVWR) or the weight on the passenger registration which is unladen weight. I have a passenger-car registration, so the guy looks at it being 5600 lbs and thinks it should be OBD-II compliant. Trick is, it's an 8800lbs GVWR, which is over 8500, which means that it doesn't HAVE to be OBD-II compliant. To get it passed correctly, the inspector has to manually enter the "weight code" as over 8500lbs, and then it says "do an idle sniffer test" instead of plugging into the OBD-II port.
I believe your inspector needs to realize it's over 8500lbs, or some other magic number, and then they will pass you the right way.
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
Info about smog for California:
Smog Information
Which points you to here:
Bureau of Automotive Repair, State of California, Dept. of Consumer Affairs
You can check smog records, based on VIN and license plate #. I'd look at that and see what you can find out, if it says anything about what type of inspection it got when it passed before.
Post up what you find.