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Old 02-19-2019, 05:16 PM   #1
Dunsparth
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Drive cycled car can't get readiness monitors too complete

I cant get my 96 s14 to pass Oxygen sensor,evap system or catalyst readiness checks, ive driven the car over 70 miles highway and city and they will not complete where should i start looking to fix these so i can pass emissions?
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Old 02-19-2019, 05:58 PM   #2
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the general number i see across the board is 100 miles (just to be safe).
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Old 02-19-2019, 06:41 PM   #3
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keep it under 55mph and at least 100 miles, it might set when you start it again tmrw on a cold start.
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Old 02-19-2019, 06:50 PM   #4
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Okay i will report back in tomorrow and drive on the highway at 55-60 until i get too 100 miles.
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Old 02-19-2019, 09:51 PM   #5
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subbd, having same issue with my 2002 ford escape, have driven about 500+ miles but monitors still not ready
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Old 02-21-2019, 11:54 AM   #6
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the 1996 S14s have an exemption (this year only). You are not required to clear any monitors. This is due to the initial implementation of OBD2 for that year. I also have a 1996 S14 and successfully passed smog with all the monitors you mentioned uncleared.
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Old 02-21-2019, 01:37 PM   #7
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There is a very specific driving pattern in the FSM that you should follow. I had the same problem with my 97 a few years ago. Following the pattern cleared everything up in two trips. I think my original problem was that my regular commute was too much highway, not enough stop and go.

If you don't have a copy of the FSM, just search for "240sx emissions drive cycle" and there should be a few images with the pattern listed.
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Old 02-21-2019, 04:02 PM   #8
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Quote:
Originally Posted by blindside73 View Post
the 1996 S14s have an exemption (this year only). You are not required to clear any monitors. This is due to the initial implementation of OBD2 for that year. I also have a 1996 S14 and successfully passed smog with all the monitors you mentioned uncleared.
When i first wen't to get my emissons done they told me i failed the readiness checks but passed everything else catalatyic converter and gas cap pressure test
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Old 02-21-2019, 04:11 PM   #9
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Quote:
Originally Posted by LoSt180 View Post
There is a very specific driving pattern in the FSM that you should follow. I had the same problem with my 97 a few years ago. Following the pattern cleared everything up in two trips. I think my original problem was that my regular commute was too much highway, not enough stop and go.

If you don't have a copy of the FSM, just search for "240sx emissions drive cycle" and there should be a few images with the pattern listed.
Yeah ive been trying to do that, following what the FSM is saying and reading what other people around taking other peoples advice and nothin still im now at 140 miles driven since i last cleared the ECU and have no CEL
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Old 02-21-2019, 04:52 PM   #10
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never mind, i thought you were in Cali.

1996 240sx are exempt from readiness monitors.

http://bar.ca.gov/pdf/Smog_Check_OBD...te_Version.pdf
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Old 02-22-2019, 10:26 AM   #11
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It’s not about how many miles you shoveled on the car it’s a driving style do a google search of “Nissan drive cycle” and follow it word for word. Example If it says drive between 55 and 60 for 15min, do it.

For the guy that posted on the FORD drive cycle PM me i used to work with a dealer that purchased every ford lightning under the sun and those are tough to drive cycle but I know the trick. Or email me [email protected]
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Old 10-02-2019, 09:37 AM   #12
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Quote:
Originally Posted by blindside73 View Post
the 1996 S14s have an exemption (this year only). You are not required to clear any monitors. This is due to the initial implementation of OBD2 for that year. I also have a 1996 S14 and successfully passed smog with all the monitors you mentioned uncleared.
Not all just 1
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Old 10-02-2019, 10:16 AM   #13
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Not all just 1

You're wrong my friend! 96 240sx has an exemption. Read my link above before stating false information. This is for the state of California.
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Old 10-06-2019, 07:07 PM   #14
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Quote:
Originally Posted by blindside73 View Post
never mind, i thought you were in Cali.

1996 240sx are exempt from readiness monitors.

http://bar.ca.gov/pdf/Smog_Check_OBD...te_Version.pdf
I wish they had this before I left CA. I was on the last day of my extension sticker and had to run the drive cycle. Such a pain but ended up getting them all to complete following the FSM drive cycle to a T. That was back in 2011. Such a pain and don't envy anyone having to do this. Thankfully I don't have to smog anymore, one nice thing about Ohio, I guess. All that money wasted getting my Smog license!

Remember to keep your fuel tank above 1/4 and below 3/4 to get the EVAP cycle to complete. That is the one that normally takes the longest. You must follow the drive cycle exactly.
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