5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Checking codes

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Old 06-29-2006, 10:05 PM
  #1  
Shifty5.0
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Default Checking codes

Alright, so i read on how to check codes and tried it on my car. Its been having some random idle problems. It idles high for a few seconds then drops. Idle= 800 jumps to 1800...
Anyways, i set the rig up and hooked it to my battery. When i go back into my car to check the CEL it blinks, and i got code 12.... then i hear a popping sound from under my dash board and it stops.

From what i read its suposed to flash the codes 2x I only got it once.

So, i tried the setup again... and now the CEL dosent blink at all! Did i fu*k something up?
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Old 06-29-2006, 10:29 PM
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Goosepoop302
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Default RE: Checking codes

how do you read codes i haven oidea
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Old 06-29-2006, 10:32 PM
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lorquettimothy
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Default RE: Checking codes

the code reader i have hooks up to a plug on the drivers side
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Old 06-29-2006, 10:40 PM
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Bad Karma
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Default RE: Checking codes

'96 and up have an OBDII connector under the dash that allows you (the user) to purchase a OBDII reader ( around $100 from Checker/Autozone/PepBoys) and pull/erase simple codes from the CPU/ECM/Etc...

They are worth the $$$!,
-Ivan
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Old 06-29-2006, 10:53 PM
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Goosepoop302
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Default RE: Checking codes

ok well where would i get one for a sn95??
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Old 06-29-2006, 11:25 PM
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Joel5.0
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Default RE: Checking codes

'85 - '95 are EEC-IV....you can read codes and perform the KOEO/KOER/Cyl. Balance self-tests following the procedure at http://www.my5oh.com/forum/viewtopic.php?t=190

You can get the '96+ OBD-II (or EEC-IV) scanners (low cost) at any of the big chain auto parts stores.
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