Hello,
A strange situation came up today when i did a routine check of the OBDII monitors.
Before i went for inspection, i had only 1 monitor registering an incomplete "inc" on the tester.
Today i checked it, and i have two more monitors registering an incomplete:
Catalyst Monitor (inc)
Oxygen Sense Monitor (inc)
The monitor i had incomplete before all this was the Evap System (inc), but it passes inspection because this car is allowed two incomplete monitors as long as the others are "ok".
So after inspection and repairs i have these:
Catalyst Monitor (inc)
Oxygen Sense Monitor (inc)
Evap System Monitor (inc)
when before all i had was this one:
Evap System Monitor (inc)
The inspection did not require any repairs.
The radiator replacement was just replacing the radiator alone and some clamps for the hoses.
Any ideas how this could happen?
Thanks.
2 More Monitors Not Set After Repairs, 1998 v70
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MrAl
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2 More Monitors Not Set After Repairs, 1998 v70
I’ve been driving a Volvo long before anyone ever paid me to drive one.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
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kcodyjr
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Sounds like the adaptives were reset. Was the battery disconnected for any length of time?
2012 C70 T5 Platinum, ember black on cranberry leather
2006 S60 2.5T AWD, ice white on oak textile
5 others that came and went
2006 S60 2.5T AWD, ice white on oak textile
5 others that came and went
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MrAl
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kcodyjr wrote:Sounds like the adaptives were reset. Was the battery disconnected for any length of time?
Hello,
What do you mean by "adaptives"?
No battery was not disconnected, according to the garage guy.
Besides that, other monitors are still "ok".
Also, when i ask the guy how this could happen, he says "I dont know".
I’ve been driving a Volvo long before anyone ever paid me to drive one.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
-
kcodyjr
- Posts: 1236
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Our Volvos are full of "fuzzy logic" that learns the condition of the equipment, and sometimes the habits of the driver, in order to further optimize its running performance. When you disconnect the battery, and touch the positive and negative cables together for 15 seconds, it'll "forget" what it's learned and start learning from the beginning.
If it wasn't that, then something else must have caused a reset, or maybe it just reruns certain tests every now and then.
Some of the monitors take longer than others to become ready.
I'd take it for a nice hour long drive on a mix of highway and country roads and then recheck. All this you're seeing might be routine operation.
If it wasn't that, then something else must have caused a reset, or maybe it just reruns certain tests every now and then.
Some of the monitors take longer than others to become ready.
I'd take it for a nice hour long drive on a mix of highway and country roads and then recheck. All this you're seeing might be routine operation.
2012 C70 T5 Platinum, ember black on cranberry leather
2006 S60 2.5T AWD, ice white on oak textile
5 others that came and went
2006 S60 2.5T AWD, ice white on oak textile
5 others that came and went
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MrAl
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Hi,
Well, it is strange that it worked fine before any service was done, then all of a sudden it acts like it's never been ready (those two anyway).
I know some of the monitors take longer, that's why i hate to see this happen, because that one might take several weeks to go back to "ok", if it does at all.
The real problem is that if something was done to the car and those two were reset, then they might not come back "ok' because now there is something wrong with the car. What are the odds of something going wrong just after serice when they were fine for a long time (about a year). If they dont come back "ok", then it ends up costing me more money next inspection time when it should not.
So that seems to leave me with no choice, i have to wait and see how the monitors react after some drive time, which is really nuts in itself because that means more gas burning and thus more greenhouse gases. The people who make these rules dont seem to know how to look at the big picture when it comes to pollution. If you make the car really emission free but the driver has to drive more miles just to get the monitors to flip, then we end up with more pollution anyway.
I feel that the garage must have done something that they are not telling me about, or else they did something that even they dont know anything about. I dont have anything against them though, and to prove that i can say that the new radiator is working BETTER than the old one, because even on a hot day like today the temperature gauge was down below half, when with the old radiator is was just above half forever. So somehow the new radiator is working better than before, which proves that they did a good job on the radiator. I checked for leaks several times, no leaks either, before or after driving.
This kind of thing is not good. We should be able to tell the status of our cars right then and there without waiting a week or more to find out after driving x amount of miles. It's totally ridiculous, because it leaves too much room for error that doesnt have to be explained by anyone.
This means somebody can fix the car and then just say they dont know what happened?
To 'fix' the car means to fix the car, not fix some thing and break something else, right?
Well, it is strange that it worked fine before any service was done, then all of a sudden it acts like it's never been ready (those two anyway).
I know some of the monitors take longer, that's why i hate to see this happen, because that one might take several weeks to go back to "ok", if it does at all.
The real problem is that if something was done to the car and those two were reset, then they might not come back "ok' because now there is something wrong with the car. What are the odds of something going wrong just after serice when they were fine for a long time (about a year). If they dont come back "ok", then it ends up costing me more money next inspection time when it should not.
So that seems to leave me with no choice, i have to wait and see how the monitors react after some drive time, which is really nuts in itself because that means more gas burning and thus more greenhouse gases. The people who make these rules dont seem to know how to look at the big picture when it comes to pollution. If you make the car really emission free but the driver has to drive more miles just to get the monitors to flip, then we end up with more pollution anyway.
I feel that the garage must have done something that they are not telling me about, or else they did something that even they dont know anything about. I dont have anything against them though, and to prove that i can say that the new radiator is working BETTER than the old one, because even on a hot day like today the temperature gauge was down below half, when with the old radiator is was just above half forever. So somehow the new radiator is working better than before, which proves that they did a good job on the radiator. I checked for leaks several times, no leaks either, before or after driving.
This kind of thing is not good. We should be able to tell the status of our cars right then and there without waiting a week or more to find out after driving x amount of miles. It's totally ridiculous, because it leaves too much room for error that doesnt have to be explained by anyone.
This means somebody can fix the car and then just say they dont know what happened?
To 'fix' the car means to fix the car, not fix some thing and break something else, right?
I’ve been driving a Volvo long before anyone ever paid me to drive one.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
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PS78
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Did your radio need its code entered after the radiator replacement? That's one way to tell if the battery was disconnected.
Always first off the line, while all the cool people are still staring at their phones.
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MrAl
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- Year and Model: v70, 1998
- Location: New Jersey
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Hi,
No, it was ok.
No, it was ok.
I’ve been driving a Volvo long before anyone ever paid me to drive one.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
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sleddriver
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In the 18yrs I've owned the sled, I seriously doubt if ALL monitors were READY at the time of an inspection.
I don't even think about it, much less worry over it.
"Fuzzy logic" indeed......
I don't even think about it, much less worry over it.
"Fuzzy logic" indeed......
1998 V70 T5 226,808 miles. Original Owner.
M1 10W-30 HM
M1 10W-30 HM
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MrAl
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Hi,sleddriver wrote:In the 18yrs I've owned the sled, I seriously doubt if ALL monitors were READY at the time of an inspection.
I don't even think about it, much less worry over it.
"Fuzzy logic" indeed......
I never said all monitors were ready. I said one monitor was not ready, but the car passed because the rules allow 2 monitors to be not ready to pass inspection. Since there was only one (Evap) it passed.
Now there are two monitors MORE that are NOT READY. The only way i know of to get that is to reset them, and that should not have been done, ever, unless a code was thrown after the repair and then it could be hidden by resetting the monitor affected, unless someone KNOWS how a monitor can go from READY to NOT READY all by itself. The only way it changes that i have seen is from NOT READY to READY or from NOT READY to ERROR CODE.
If there is another way then i would need to know HOW that can happen.
I’ve been driving a Volvo long before anyone ever paid me to drive one.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
That's probably because I've been driving one since 2015 and nobody has offered to pay me yet.
1998 v70, non turbo, FWD, base model, on the road from April 2nd, 2015 to July 26, 2023.
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abscate
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Can you actually correlate the changing of the monitors to the work done or did you just happen to check the status after work performed? Drive it normally and don't worry about it. Those two reset in 50 miles or less.
If the engineers hadn't put monitors on these things everyone would cheat and never fix their cars..and we all breathe 1970s smog and blame " udders"
If the engineers hadn't put monitors on these things everyone would cheat and never fix their cars..and we all breathe 1970s smog and blame " udders"
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
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