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Drive cycle We have a 1997 Mercury Mountaineer and we had a catalitic converter installed to pass emissions, we have driven it 600 miles and it still hasn't reset the computer, what can we do?

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  • Cars & Trucks Master
  • 20,706 Answers

You never said what reset means.
the CEL is not out , driving?
or
scan tool attached , the 13 or so monitors have yet to complete>?
to pass immision. (at the very least)
1: CEL lamp in dash (or SES) must be on key on. not started
2: the CEL must go out and stay out running, if not fix the problem.
3: the monitors must be complete. (takes a scan tool to see that)
here are some hints
keep the gas tank below 3/4 full so the EVAP monitor can finish.
drive faster than 45mph on a hot engine.
the engine coolant temperature must be 180F or more and HOLD !
if in canada, say so, as the rules are different.
in Nunavut?

Posted on Oct 12, 2013

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Posted on Jan 02, 2017

MacDre2009
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SOURCE: Emission system problem

fill your muffler with SOS pads just before your test a wire coat hanger can remove them after the fact..
good luck its how i got my prelude to pass inspection in vancouver bc canada

Posted on Jan 16, 2009

dustyboner
  • 331 Answers

SOURCE: drive cycle for emission test

The links below should tell you exactly what you need to do.

ODB drive cycle page1
page 2
page 3
page 4
page 5

Posted on Jan 25, 2009

  • 69 Answers

SOURCE: emissions test comes up not ready - can't pass inspection

Under the hood, there is a fuse block. I believe it is on the driver's side of your vehicle. Open that box, and pull the "ECU" fuse. Leave the fuse out for at least 5 minutes. Put the fuse back in, start the car, and let it idle for at least another 5 minutes. Do not drive the car, touch the gas, or even look at the gas pedal for these 5 minutes, as the ECU is remapping itself. This will properly reset the ecu and clear the codes. After this you may drive the car.

Posted on May 28, 2009

  • 10 Answers

SOURCE: How do we reset our o2 sensors to pass emissions?

you replaced them with new ? you need to take the battery cable off for 5 minutes then drive it so the computer can relearn the codes at 5 miles

Posted on Aug 20, 2009

  • 617 Answers

SOURCE: po420 haunting me 03 jetta 1.8t

po420 is a generic obdii code which is cat converter sys - efficiency below threshold bank 1, which on vw's, should get oem code to fix right, does engine run rough?

Posted on Feb 04, 2010

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1 Answer

Had both air fuel sensors replaced to pass CA smog. OBD2 evap and catalyst monitors say "inc" or "not ready," and vehicle won't pass smog.


Not sure how old the vehicle is, or model, or engine, so I can only give general suggestions. You may need new catyitic converters, or O2 sensors. They sometimes can't be corrected, just replaced.

Feb 15, 2016 | Toyota Cars & Trucks

1 Answer

How many miles do I need to drive to complete the drive cycle


hi
generally the catalic converter get oily especially if the car is used
around the town the best thing to do from past experience is to drive the car down the motorway at 60mph. for good 3/4 hour at high revs
third gear if 4 gear motor you get the meaning this way you burn the oil
out because lots more heat is crated once this is done youshould pass the emission. happy driving

Feb 18, 2015 | 2001 Mercury Sable

1 Answer

Drive cycle


In general terms, the car has to be driven for 50 - 100 miles in various conditions to allow the engine computer to check emissions.
The distance can be in one trip or several, but the engine must be at operating temp and speeds include both city and highway.

Feb 10, 2014 | Kia Cars & Trucks

1 Answer

Drive cycle


If the battery has been disconnected, or the computer has lost its memory, the car has to be driven under various conditions before the emission system can be checked for codes.
The drive cycle is between 50 and 100 miles, both city and highway driving, after the engine has reached normal temp.

Jun 17, 2013 | 1996 Mercury Grand Marquis

1 Answer

How to complete drive cycle for a 1997 Mitsubishi Montero SR


You will need to do a 2 trip monitor drive cycle.What this means it needs to see 2 cold start up, from 60 F to operating temperature of 210F.and driven around town,for at least 15 minutes,then shut down for at least 5 minutes then driven again.Each manufacture has a precise way of doing this monitor set,from my experience go around town, your a 1997 the only monitor you dont have to set is evap.Simply explained just drive it

Mar 06, 2012 | 1997 Mitsubishi Montero

1 Answer

I unpluged my battery to get the corosian off and it was loose so when i went to admissions it failed cause i didn't have a certain amount of miles on it and they didnt tell me how many i needed and i dont...


the term for resetting the emission monitors is drive cycle. normally, you can just drive your car as you do and the monitors will update within 100mi. there is also specific instructions for resetting. google "drive cycles" to see them. i can't say the specifc web site, i don't remember. i have come across them. it's just a matter of searching. different car manufacturers have different dive cycles. i have a 97 crown vic that is good in about 30 miles.

Mar 22, 2010 | 1997 Mercury Mountaineer

1 Answer

Catalitic converter


I hate to say this, but what they told you seems to be correct. The catalytic converter is somewhat expensive for this vehicle because an O.E. converter must be used. If you were to install an aftermarket converter on this vehice, it would still not pass the emission's test. Furthermore replacing the oxygen sensor along with it is the only way to go. Hope this helps.

Aug 21, 2008 | 1996 Toyota Previa

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