Anyone with S2 and P0171? - Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums
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post #1 of 12 (permalink) Old 01-27-2007, 12:33 AM Thread Starter
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Anyone with S2 and P0171?

Anyone have GM Stage 2 and still get the P0171 code? I do but apparently the PCM doesn't know whats really going on

2005 Victory Red Cobalt SS Supercharged
GM Performance Stage 2 kit with 2.9" Pulley
K&N Typhoon Cold Air Intake
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post #2 of 12 (permalink) Old 01-27-2007, 12:44 AM
 
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LEAN CODE!!!!!!!!!

your intake, smaller pulley, ect are causing your issues....stg2 is NOT calibrated for those parts...a CAI reeks havoc on your MAF readings...
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post #3 of 12 (permalink) Old 01-27-2007, 12:49 AM Thread Starter
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I showed the plugs to show all that carbon build-up...

2005 Victory Red Cobalt SS Supercharged
GM Performance Stage 2 kit with 2.9" Pulley
K&N Typhoon Cold Air Intake
Corsa Touring Cat-Back Exhaust System
ZEX Plugs
Aeroforce Interceptor SS Edition Gauge
AEM UEGO Wideband A/F Gauge
Custom Engine Covers
DC Sports Strut Tower Bar
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post #4 of 12 (permalink) Old 01-27-2007, 06:30 AM
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Quote:
Originally Posted by dervin3 View Post
I showed the plugs to show all that carbon build-up...
ah no worries man, i've had the p0171 for over 30,000 miles now (41,000 on the car now) i was worried at first but every 5k miles or so i'll pull th eplugs and check it out and they are clearly not running lean. it's just our sensitive ecu's and as long as the plugs show fine, you're fine

the majority of people here have got the lean code before, i just wish mine would go away lol..
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post #5 of 12 (permalink) Old 01-27-2007, 11:18 PM
 
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^^^^^ until or unless u have emissions
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post #6 of 12 (permalink) Old 01-27-2007, 11:20 PM
 
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just added the 2.9 pulley and no codes as of yet YAY!
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post #7 of 12 (permalink) Old 01-28-2007, 08:43 AM
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Quote:
Originally Posted by jonsstockrocket View Post
^^^^^ until or unless u have emissions

what do you mean? if emssions test i have an aeroforce so i just reset it before it goes in. and same hting for warranty repairs i just reset it right befoe i drop it off,although all the repairs on my cars have been body/mechanical no drivetrain yet
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post #8 of 12 (permalink) Old 01-28-2007, 11:26 AM Thread Starter
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No emissions here

2005 Victory Red Cobalt SS Supercharged
GM Performance Stage 2 kit with 2.9" Pulley
K&N Typhoon Cold Air Intake
Corsa Touring Cat-Back Exhaust System
ZEX Plugs
Aeroforce Interceptor SS Edition Gauge
AEM UEGO Wideband A/F Gauge
Custom Engine Covers
DC Sports Strut Tower Bar
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post #9 of 12 (permalink) Old 01-28-2007, 12:55 PM
 
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I get a po306
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post #10 of 12 (permalink) Old 01-28-2007, 02:32 PM
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i've never had any codes...that's weird


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Injen CAI + Corsa Touring + GMPP Stg 2 + Eibachs
Hawk Pads + too much suspension to mention
On the way: Flywheel + DC Sports header
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