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Author
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Topic: FAILED smog !!!! need some help.
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mustang928
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Member # 2123
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posted
 
 
Well... it's actually my fathers car, 96 cavalier. Can anyone help me out with it? Here is the picture of the inspection report.
Posts: 333 | From: CALIFORNIA | Registered: Nov 2002
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Fostang
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Member # 3752
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posted
Seems like it's running rich do the the faulty ECT was the engine nice and warm when it was smogged?
If it was then the ECT should be replaced.
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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: 3013 | From: Stockton/Danville | Registered: Nov 2003
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mustang928
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Member # 2123
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posted
I'm pretty sure he just drove it right over to the smog station.
I'm going to replace it later today and hopefully that will be the problem.
Posts: 333 | From: CALIFORNIA | Registered: Nov 2002
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Fostang
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Member # 3752
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posted
BTW what was up with the air injection failure?
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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: 3013 | From: Stockton/Danville | Registered: Nov 2003
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mustang928
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Member # 2123
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posted
The fail was for the MIL/check light visual and not the air injection, I called him and said the "check engine" light came on during the smog..
So it failed the visual as well.....
Posts: 333 | From: CALIFORNIA | Registered: Nov 2002
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NO MANRZ
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Member # 566
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posted
Changed the plugs and wires in a while? If not, I'd do that and drive it 10 miles to heat the car up real nice. The problem is your NO numbers are also high. When you heat it up the HC goes down and NO goes up. Sounds like the car needs a basic tune up.
Posts: 1938 | Registered: Nov 2001
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BCINGUU
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Member # 2397
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posted
You need to fix your cooling system issue, that will definitely cause high HC.
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93 Cobra #4563 347ci 12.0@118 505rwhp 524tq
90 GT "Saleen Cobra" style convertible 347ci
67 GT "Eleanor" style coupe 347ci
Posts: 1425 | From: San Jose, CA | Registered: Jan 2003
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S351-R
CAFords OG
Member # 1605
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posted
The trouble code sets and triggers the "check engine" light after two consecutive drive cycles. So most likely it has a cooling system issue present that's not allowing the engine to reach operating temperature and operate in closed loop. That or a screwed up ECT sensor. Possible cooling system issue may be a thermostat stuck open.
[ May 04, 2006, 06:23 PM: Message edited by: S351-R ]
Posts: 344 | From: Earth | Registered: Jul 2002
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mustang928
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Member # 2123
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posted
Definately changing the ECT sensor, didn't even cross my mind to change the plugs or the thermostat.
Thanks for all the help guys!
Posts: 333 | From: CALIFORNIA | Registered: Nov 2002
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CDT
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Member # 5004
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posted
put a thermostat and that should help. BTW high HC is caused by a misfires or running lean, NEVER rich. After looking at the whole test, it looks a lot like your cat my be bad also, but you only failed by a little so the plugs and stat should get you by this time.
[ May 05, 2006, 09:03 AM: Message edited by: CDT ]
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Custom Dyno Tuning
510.331.0608
Home of Flat Fee Tuning For All Cars, Trucks and SUV's, EFI & Carb, SCT, AFR, Dynatech, STS Turbos, N2O Refills
Posts: 1053 | From: Hayward | Registered: Nov 2004
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mustang928
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Member # 2123
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posted
The car passed....
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.............HC....................NO
15MPH MAX 61 Meas 61.......MAX 467 Meas 449
25MPH MAX 45 Meas 42.......MAX 754 Meas 187
I replaced the ECT sensor, plugs and the thermostat. The cat will be the next thing to be replaced. Wanted to thank and update everyone of the results ![[patriot]](graemlins/patriot.gif)
[ May 08, 2006, 06:13 PM: Message edited by: mustang928 ]
Posts: 333 | From: CALIFORNIA | Registered: Nov 2002
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