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How long after clearing codes to wait for smog test?

Tiny
RUESTER
  • MEMBER
  • FORD MUSTANG
I took my 2000 Ford Mustang 3.7L in to read codes, then cleared (bad EGR) Then I went to have my Car smogged and they told me it passed, but that it had been to soon since clearing the codes (Smog test computer came back with "System's Not Ready" and told me I have to bring it back within a month (basically saying they won't let me pass until the "System's not ready' code clears - How long does that take, or how can I expedite this?

Thanks for any help I can get.
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Monday, April 3rd, 2006 AT 11:56 AM

1 Reply

Tiny
LOSONE
  • MECHANIC
  • 1,616 POSTS
Yep this is because the monitor do not set unless you drive the car about 40 miles shutting it off and letting it cool down at least twice. This will reset the monitors and give you a passing smog.
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Monday, April 3rd, 2006 AT 1:29 PM

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