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Author
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Topic: smog test failed help
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platinumplus
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Member # 2249
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posted
 
 
I failed on two things
1.FAIL ignition timing: 99atdc
2.FAIL mil/check engine light
I have a question what is the stock timing # on stock 5.0L GT mustang (foxbody)what does 99atdc mean?
ever since winter started my check engine light pops up on my dash after I warm up the car what can this mean?
[ December 03, 2004, 11:08 AM: Message edited by: HighOutput ]
Posts: 402 | From: SanJose CA | Registered: Dec 2002
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Blind
2.3L
CAFords OG
Member # 3052
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posted
stock timing is 10BTDC
I'm sure the 99 is a typo for 9, can't be that far off, lol.
you need a code scanner to check your computer for engine codes as to what the check engine light is, you will never pass smog until you fix whatever is causing that check engine light to come up.
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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Hungry Hippo
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Member # 537
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posted
doesnt look like the shop knew how to check timing.
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05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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Fostang
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Member # 3752
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posted
yeah the shop sounds like they had no clue how to check timing because even 9* should pass.
It should be at 10* with the spout out.
If the check engine light is popping on after.
Check the egr even try replacing it with one that is known to work.
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3011 | From: Stockton/Danville | Registered: Nov 2003
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Hungry Hippo
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Member # 537
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posted
i think the timing can be 2 or 3* off
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05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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