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post #1 of 6 Old 12-03-2019, 11:47 AM Thread Starter
Thomas19
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smog test fail problem

I bought a 2007 Wrangler X in December 2006. I don't drive much, so the battery keeps wearing down, then it requires a AAA electrical boast. I'm on my fourth battery.


I failed my recent smog test, because the Jeep's computer didn't contain enough data. The odometer was at 11,275 miles. The tech guy said I need to drive more. He estimated 50 to 60 miles.


Since then I've driven nearly 300 miles (299, to be exact), and my Jeep's computer still doesn't have enough data.



I've since bought an INNOVA Code Reader. My Jeep keeps saying that the C and O sensors are incomplete. I don't know what C and O mean, because my Code Reader didn't come with a manual, but it's been these two areas, and only these two, that have been "incomplete data" since my first smog test.


Is it normal to have incomplete data, drive 300 miles, and STILL have incomplete data? Should I continue to drive, or should I have my Jeep checked for a faulty computer?

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post #2 of 6 Old 12-03-2019, 02:10 PM
jtec
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must correct the battery going dead as this will cause all data to dump.

As far as inova- did you google their web site for the manual should be free online, ask the store where you purchased inova what they can do to get you a hard copy.

google jeep drive cycle for a idea of how to perform the drive cycle to set monitors to ready.

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
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post #3 of 6 Old 12-03-2019, 04:49 PM Thread Starter
Thomas19
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I found this bit of information online:

If the oxygen sensor heater monitor is not ready, check to see how many other monitors are not ready. If the oxygen sensor and catalyst monitors are also not ready, the culprit is most likely a weak battery. If your battery is more than four years old, replace it and re-run the Drive Cycle. Even though your car may start just fine, the PCM is hypersensitive to the slightest glitch in the battery. It will suspend the Drive Cycle if it is not happy with any aspect of battery performance and/or charging system performance.

I do believe my problem is the Oxygen and Catalyst monitors. And I probably have a weak battery. Although it's less than 2 years old, and it works fine now, it was so dead last time that it had trouble maintaining a charge when the AAA guy boosted it. I guess a battery can "run great" and still be weak. So I'll replace the battery, drive some more, and see what happens.
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post #4 of 6 Old 12-03-2019, 05:46 PM
Dingo07
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Buy an AGM battery and never look back...
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post #5 of 6 Old 12-04-2019, 10:39 PM
fracturedapple
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If you haven't googled drive cycles yet. Here is the catalyst monitor drive cycle.

Just have to make sure there is no check engine light.

Engine is up to operating temp.

It says the speed should be 25-45. You should split that so drive it at 35.

Sent from my SM-G965U using Tapatalk
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post #6 of 6 Old 12-05-2019, 08:16 AM
jtec
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"I do believe my problem is the Oxygen and Catalyst monitors"

Why are you guessing which monitors are the issue?

The right tool for the job - always helps.

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
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