XK / XKR ( X150 ) 2006 - 2014

O2 sensors won't "READY" for emissions test

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Old 10-01-2019, 03:26 PM
Cee Jay's Avatar
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Default O2 sensors won't "READY" for emissions test

I went to register the XKR and of course I was stupid and disconnected the batter about a week before I went to the shop, so of course the Emissions Status was NOT READY yet, since only about 20 miles since Disco.
Well, I drove 114 miles in the suggested manner so of course I figured all would be well, and well, well it wasn't. I figured the EVAP would take awhile, but I've never had the O2 Readiness never "Ready" after like 20 miles.
Got into Torque and picked all whopping 3 O2 parameters that were available and this is what I have............ are those signals proper? It seems wrong to me, more Pulse than Digital, and weird anyway. Note the RPM in the graph above it:


The entire internet is void of anything I could find on it, course I don't know what good Search Parameters would be good for finding this out.
My Bank 2 Long Term Fuel Trim is -3 when it was totally flat before, but that isn't much but may be of note in this situation. I dunno.
I'm an old Analog guy and all this stupid electric stuff is a pain in my butt.
Torque Pro has those stupid "MID" tests and I have a bunch of fails, but can't find info on those anywhere, and most seem to be "Bank 4 Sensor 1&2". Yeah, OK.
Any help or info on this?
 
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Old 10-01-2019, 04:28 PM
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"Low battery!!!"
"New" battery doesn't mean "charged" battery. (inside joke)

Since nothing changed except sitting for a week after disconnecting the battery, maybe all you need is to drive it more to reset everything. I'd add a can of fuel cleaner - either 6BG44K or Techron by Chevron - and see if that helps.
 
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Old 10-01-2019, 04:41 PM
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Originally Posted by Cee Jay
I went to register the XKR and of course I was stupid and disconnected the batter about a week before I went to the shop, so of course the Emissions Status was NOT READY yet, since only about 20 miles since Disco.
Well, I drove 114 miles in the suggested manner so of course I figured all would be well, and well, well it wasn't. I figured the EVAP would take awhile, but I've never had the O2 Readiness never "Ready" after like 20 miles.
Got into Torque and picked all whopping 3 O2 parameters that were available and this is what I have............ are those signals proper? It seems wrong to me, more Pulse than Digital, and weird anyway. Note the RPM in the graph above it:


The entire internet is void of anything I could find on it, course I don't know what good Search Parameters would be good for finding this out.
My Bank 2 Long Term Fuel Trim is -3 when it was totally flat before, but that isn't much but may be of note in this situation. I dunno.
I'm an old Analog guy and all this stupid electric stuff is a pain in my butt.
Torque Pro has those stupid "MID" tests and I have a bunch of fails, but can't find info on those anywhere, and most seem to be "Bank 4 Sensor 1&2". Yeah, OK.
Any help or info on this?


I had to drive my 08 XK 210 miles to get the sensor to show up on state inspection.inspector told me to keep driving till it went on
 
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Old 10-01-2019, 04:44 PM
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Originally Posted by IanXF
I had to drive my 08 XK 210 miles to get the sensor to show up on state inspection.inspector told me to keep driving till it went on
Never have I had to go over 30 miles for the O2s. Evap, sure, lots of miles.
Bad part....... my registration expired yesterday, so I'll have to get a Temp before I try again. AND, since I was out of country for almost two weeks, the retest has to be paid for again.
Oh well for me.

But about those Sensor readings....... are they supposed to jump around that much?
 
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Old 10-02-2019, 08:17 AM
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Originally Posted by Cee Jay
But about those Sensor readings....... are they supposed to jump around that much?
Yes, Upstream sensor cycles between ~min and ~ max (.1-.9V) normally. DOWNstream O2 sensor voltage should not fluctuate or it means your catalytic converter might be bad.
 
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Old 10-02-2019, 09:49 AM
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Ceejay I know a different vehicle but I had a similar situation on my Jeep and it took between 80-90 miles for the O2 sensors to be ready on that vehicle...
 
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Old 10-02-2019, 11:01 AM
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If this is a 2010 car then I would expect the upstreams to be wideband and thus they won't cycle.

I suspect either torque hasn't figured out what they are or is being used wrongly - but try another app or two or three or ...
 
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Old 10-02-2019, 06:34 PM
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my old saab used to be finicky in this situation. the first time, i had to do the entire drive cycle three times for a total of about 250 miles. another time it readied in probably just 20 miles, without even properly finishing the first cycle (although i did hit all of the individual rpm/load ranges). unfortunately i never found the root problem.
 
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Old 10-05-2019, 12:36 PM
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After 135 miles the O2 sensors finally Ready Upped. The EVAP is still playing around, but one Not Ready is good enough for a PASS on emissions. I've never had to wait so long before, in any vehicle.
SO, registered for another year. NEXT time I won't disco the battery a week before the registration expires. Oh, and D/S O2 voltages are still bouncing around. I'll worry about that if I get a CEL or a fuel trim problem.
 
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