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Author
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Topic: small miss when idleing.....
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ugotsmoked
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Member # 6069
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posted
 
 
01 gt. no motor mods, just exhaust. Idle dosent sound smooth. There is a small "bump" or miss in idle. Car runs and drives great though. Sometimes when i start it, it will start and die. Upon re-start, it starts fine and continues with the shitty idle. Any ideas? just changed plugs and oil. Im thinking egr or somthing along that line.
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02 GT - Fully built and blown - RIP
'00 C5 Frc - Cammed and tuned - sold
66 Nova - Restored - 6.0 In the works
Posts: 1585 | From: Rocklin, Ca. | Registered: Sep 2005
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dynoguy
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Member # 6457
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posted
check for vacum leaks. a little carb spray or brake cleaner sprayed in there should do the trick.
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Chris
BRG Racing/Dyno
(925)680-2560
chris@brgracing.com
www.brgracing.com
Posts: 131 | From: Concord | Registered: Jan 2006
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ugotsmoked
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Member # 6069
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posted
i looked at all the vacum lines. they seem to be ok. i will check tomorrow with some carb cleaner. Thanks.
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02 GT - Fully built and blown - RIP
'00 C5 Frc - Cammed and tuned - sold
66 Nova - Restored - 6.0 In the works
Posts: 1585 | From: Rocklin, Ca. | Registered: Sep 2005
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90lxfoxbody
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Member # 6947
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posted
Sounds like it has a injector problem to me...Could have one thats leaking when sitting and that could be causing the starting problem when cold and the random miss at idle......If it is a 01 put a scanner on it.It should store a random miss fire code,if it does try moving the injector to another cylinder if it follows the injector change the inject.If it doesnt then try moving the coil pack...
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Owner Of All Out Performance
Ya I own that Cobra
Old setup whipple and jug 9.37 155
New twins hoping for 8.50s at 165
Posts: 588 | From: fresno ca | Registered: Jul 2006
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ugotsmoked
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Member # 6069
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posted
not throwing any codes.
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02 GT - Fully built and blown - RIP
'00 C5 Frc - Cammed and tuned - sold
66 Nova - Restored - 6.0 In the works
Posts: 1585 | From: Rocklin, Ca. | Registered: Sep 2005
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90lxfoxbody
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Member # 6947
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posted
Well im sure it has a temp miss fire data log in the pcm...you will have to put a high quality scanner on it to see it.....
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Owner Of All Out Performance
Ya I own that Cobra
Old setup whipple and jug 9.37 155
New twins hoping for 8.50s at 165
Posts: 588 | From: fresno ca | Registered: Jul 2006
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AJBlackGT
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Member # 3936
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posted
quote:
Originally posted by 90lxfoxbody:
Well im sure it has a temp miss fire data log in the pcm...you will have to put a high quality scanner on it to see it.....
Genisys ![[Big Grin]](biggrin.gif)
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90 Notch
Posts: 1896 | From: Sacramento | Registered: Dec 2003
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ugotsmoked
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Member # 6069
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posted
i have a basic code scanner. ill have to try to get my hands on a good one.
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02 GT - Fully built and blown - RIP
'00 C5 Frc - Cammed and tuned - sold
66 Nova - Restored - 6.0 In the works
Posts: 1585 | From: Rocklin, Ca. | Registered: Sep 2005
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90lxfoxbody
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Member # 6947
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posted
quote:
Originally posted by AJBlackGT:
quote:
Originally posted by 90lxfoxbody:
Well im sure it has a temp miss fire data log in the pcm...you will have to put a high quality scanner on it to see it.....
Genisys
Yup i like those or tech 2...We have a modis and i hate that pos...
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Owner Of All Out Performance
Ya I own that Cobra
Old setup whipple and jug 9.37 155
New twins hoping for 8.50s at 165
Posts: 588 | From: fresno ca | Registered: Jul 2006
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