2002 Ford Mustang COMPUTER FUNTIONALITY WONT PASS SMOG

Tiny
JDRACER
  • MEMBER
  • 2002 FORD MUSTANG
  • V8
  • 2WD
  • MANUAL
  • 214,000 MILES
I FAILED A SMOG TEST BECAUSE THE COMPUTER FUNCTIONALITY DOEST PASS.I DID HAVE THE BATTERY DISCONNECTED FOR A WHILE WHILE I WAS REPLACING THE INTAKE MANIFOLD. BUT I DID PUT OVER 100 MILES ON IT TO GET IT TO RE-LEARN. IT STILL SAYS THE SAME THING.I AM BAFFLED.I DID THOUGH REMOVE A COMPUTER PROGRAM FROM A HAND HELD PROGRAMMER FOR THE SMOG TEST. COULD THIS HAVE CAUSED THE PROBLEM AND WHAT WOULD BE A FIX?
Monday, February 1st, 2010 AT 9:05 AM

5 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok when I did smog this wasn't a test in the state that I did it. So what is not passing on the functionality test? Engine light or was it not comunicating with the scan tool or?
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Monday, February 1st, 2010 AT 12:42 PM
Tiny
JDRACER
  • MEMBER
  • 3 POSTS
NOT COMMUNICATING APPARENTLY
THERE ARE NO CODES COMING UP
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Monday, February 1st, 2010 AT 1:04 PM
Tiny
JDRACER
  • MEMBER
  • 3 POSTS
IT SAYS HEATED 02 NOT READY
CATALYST NOT READY
EVAP NOT READY ETC
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Monday, February 1st, 2010 AT 2:26 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
OK so the computer is talking to the scanner. How warm was the car when you took it in? Did it sit for any time waiting to get it smogged? What this is saying is that the car was not up to temp. Now if it was up to temp then what I need you to do is ohm the coolant temp sensor when the engine is cold and get back to me with the ohms and the air temp at the time you checked it.
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Tuesday, February 2nd, 2010 AT 8:46 AM
Tiny
BMDOUBLE
  • MECHANIC
  • 1,139 POSTS
The PCM monitors have not completed for whatever reason, and removing a program before taking it in will do it because the keep alive memory will be reset. 100 miles of driving should have done it to complete all of the monitors unless there is a fault with a sensor or conditions not met. Perform an on demand self test to verify that there are no codes other than P1000.
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Monday, July 22nd, 2019 AT 9:55 PM

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