11:09 pm
Club Member
July 10, 2003
Offline
I'm trying to get my Jeep smogged. I had evap codes so I've been replacing hoses and driving to clear the computer so I can take it in and get it tested. So far, in the last three days, I've put on 350 miles, all at ~35 miles an hour. That's 10 hours in my Jeep driving back roads. I'm starting to HATE my Jeep 🙄
I used to wheel a lot. . .
11:25 pm
Club Member
July 10, 2003
Offline With the way my Jeep drives and everything that's broken right now, I don't trust it on the freeway. I'd hate for that last link to let go at 60 mph 😯 Besides, I hear that it's best to do stop and go driving to run the diagnostics fatser?
I used to wheel a lot. . .
11:29 pm
May 4, 2004
Offline You should hire a 16 year old who's out of school and just got their license to drive it around for you. I'm sure he/she would have no trouble driving it around for 10 hours or more.
11:54 pm
Disconnect the neg battery is not enough to reset or is this basically a re-calibration type thing?
12:17 am
Two weeks ago I drove to Hat Creek on Thursday and came home Sunday. Last weekend I drove to San Diego on Saturday and drove home Sunday. Tomorrow I'm driving to Carson City. I can't believe how much I'm driving lately. But, I pass smog either way. 8)
12:25 am
I guess this is the part I like best about wheeling a 69 Commando, no smog. Mark
1:00 am
Club Member
July 10, 2003
Offline "Wh1t3Nukle" wrote: Disconnect the neg battery is not enough to reset or is this basically a re-calibration type thing?
That will reset it, but then the computer goes through a bunch of diagnostics which take quite a while to complete. If you take it in for a smog check and it is still running diagnostics, they won't test it. So, i have to run it and then plug in the reader to see if it's ready to test.
I used to wheel a lot. . .
2:14 am
Club Member
January 20, 2009
Offline I hate smog! 👿
6:38 pm
Club Member
July 10, 2003
Offline Failed the test because I have more checks for the computer to clear. More Driving...
I used to wheel a lot. . .
9:49 pm
Club Member
July 10, 2003
Offline Woohoo...Finally passed!
Over 350 miles of driving at ~35 miles an hour 😯
I used to wheel a lot. . .
2:53 pm
If that was the fuel tank evap self check i feel your pain !! I had to go to the CARB Ref. 3 times. Nothing was wrong, I just could not mimic the conditions that would cause it to test itself.
9:26 pm
May 27, 2012
Offline Wish I had remembered this post. Just failed smog test because I had disconnected battery over last couple of weeks of no use. :banghead: Test station said the "computer" thinks I'm trying to "cheat" my smog test now and failed me, however the tester said I shouldn't have to drive hundreds of miles to reset the computer if I do the following:
1. Start with about 1/2 tank of gas
2. Drive approx. 50 highway miles no faster than 65 mph
3. Drive around 10 miles in town (stop/go)
4. Return to test station WITHOUT shutting off engine
I'm scheduled to retest Sun morning after I follow this procedure. Hopefully, this will work!
Will post results.
10:55 pm
January 27, 2011
Offline How crazy is that? If I'm going to "cheat" they won't find it so easily. Much success Sunday.
=====
If you do not change direction, you may end up where you are heading -- Lao Tzu
12:38 am
Club President
April 2, 2003
Offline I'm having codes now. None show on my reader so I'm kind of stumped.
I rest the system and am now going to need to drive.
1:31 am
Club Member
July 10, 2003
Offline Epidemic?
I used to wheel a lot. . .
1:49 am
I finally got rid of my check engine light last week! It had been on for months!
7:11 pm
May 27, 2012
Offline "BLEB" wrote: Wish I had remembered this post. Just failed smog test because I had disconnected battery over last couple of weeks of no use. :banghead: Test station said the "computer" thinks I'm trying to "cheat" my smog test now and failed me, however the tester said I shouldn't have to drive hundreds of miles to reset the computer if I do the following:
1. Start with about 1/2 tank of gas
2. Drive approx. 50 highway miles no faster than 65 mph
3. Drive around 10 miles in town (stop/go)
4. Return to test station WITHOUT shutting off engineI'm scheduled to retest Sun morning after I follow this procedure. Hopefully, this will work!
Will post results.
Grrrr. Procedure cleared all but three sensors...evap., oxygen, and oxygen heater. Ran another 20 miles and cleared oxygen, now I'm down to two. Shop says evap can take weeks depending on manuf. but I can pass test if I get it down to only one sensor failure. Letting the jeep cool down a bit and will try later to see if I can clear oxy heater (more cold starts). What a pain!
7:39 pm
Club Member
July 10, 2003
Offline "BLEB" wrote:
Grrrr. Procedure cleared all but three sensors...evap., oxygen, and oxygen heater. Ran another 20 miles and cleared oxygen, now I'm down to two. Shop says evap can take weeks depending on manuf. but I can pass test if I get it down to only one sensor failure. Letting the jeep cool down a bit and will try later to see if I can clear oxy heater (more cold starts). What a pain!
Hahaha. . .Been there. Now try doing it with a broken suspension and not able to drive over 35 mph. THAT was a PAIN!
I used to wheel a lot. . .
9:35 pm
"JohnDF" wrote: [quote="BLEB"]
Grrrr. Procedure cleared all but three sensors...evap., oxygen, and oxygen heater. Ran another 20 miles and cleared oxygen, now I'm down to two. Shop says evap can take weeks depending on manuf. but I can pass test if I get it down to only one sensor failure. Letting the jeep cool down a bit and will try later to see if I can clear oxy heater (more cold starts). What a pain!
Hahaha. . .Been there. Now try doing it with a broken suspension and not able to drive over 35 mph. THAT was a PAIN!
Seems like a crazy system. Shouldn't it just check and see that everything is ok and go from there? What if you did have something actually wrong that you fixed? Would it clear then or would you still have to drive all over?
9:47 pm
Club President
April 2, 2003
Offline I have three lights. I have no codes when I use my OBD reader. I guess it's a way to send work to the dealer.
10:37 pm
May 27, 2012
Offline "Bender" wrote: [quote="JohnDF"][quote="BLEB"]
Grrrr. Procedure cleared all but three sensors...evap., oxygen, and oxygen heater. Ran another 20 miles and cleared oxygen, now I'm down to two. Shop says evap can take weeks depending on manuf. but I can pass test if I get it down to only one sensor failure. Letting the jeep cool down a bit and will try later to see if I can clear oxy heater (more cold starts). What a pain!
Hahaha. . .Been there. Now try doing it with a broken suspension and not able to drive over 35 mph. THAT was a PAIN!
Seems like a crazy system. Shouldn't it just check and see that everything is ok and go from there? What if you did have something actually wrong that you fixed? Would it clear then or would you still have to drive all over?
I agree. If the goal is less emissions then NOT driving seems to be a pretty good way to minimize emissions....that is as long as your battery doesn't go dead, or you don't disconnect it. I had actually passed all emissions tests, but the problem was since I disconnected the battery the vehicles on-board computer lost all its information. Sounds like today's smog tests are not just testing how you vehicle is running at that point in time, but how you vehicle has ran in the past too. To comment on your question, if a part WAS bad you would probably WANT to reset the computer anyway so that you could erase the history of what was actually bad....hmmm maybe that's why they default a vehicle to fail until a clean history is re-recorded. Anyway, I did finally pass today. After last code check I let the vehicle cool for 3 hours, restarted it, drove for another 10 miles and was able to clear the evap code (still had one code but you can pass with just one)
1 Guest(s)
