95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

INFO: Drive patterns to reset OBD-II readiness monitors before state emissions test

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Old Mar 13, 2012 | 03:14 PM
  #1  
FogRunner's Avatar
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From: Galveston, Texas
INFO: Drive patterns to reset OBD-II readiness monitors before state emissions test

If you have replaced the battery or cleared any DTC codes your readiness monitors will be incomplete and your won't pass inspection till you drive it a bunch. Most all of them readiness monitors will clear quickly but the catalyst and the evap emissions system have two very specific drive cycle patterns to get them to complete.

Normally this isn't much of a problem because most states allows TWO incomplete monitors, but several states have recently lowered it to only ONE incomplete monitor on 2001 and above models.

Here is a link to the Toyota TSB on how to drive your car to get the monitors to complete quickly. TSB EG003-02

http://www.obdclearinghouse.com/docu...revised%29.pdf

I tried driving around town and the highway for over 200 miles and couldn't get those two to clear/complete but after following the TSB I had both cleared in less that an hour.
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Old Feb 9, 2014 | 12:08 PM
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This saved my bacon. Thank you!

MODS, THIS SHOULD BE STICKY!!!
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Old Jun 19, 2015 | 07:46 PM
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You are the king!
Will be taking it for emissions tomorrow in Houston.
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Old Jun 20, 2015 | 11:18 AM
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From: I live in New Tripoli Pa out in the woods
Red face

For what ever reason following this to the letter I just could not get the EVAP test to run.

Said the heck with it just drove for a week and it was good.

This is my luck.
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