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05-31-2010, 01:34 PM
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#1 |
 Drives: L99 cyber grey Join Date: Aug 2009
Location: san jose
Posts: 145
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Check Engine Light
My check engine light came on over the weekend. A few months back I got the car tuned when I installed the vararam intake and long tube headers, but have not had any problems since then -- Odd! Any thoughts on what it may be?
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05-31-2010, 02:02 PM
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#2 |
  
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I would take it back and have the tune checked just to make sure nothing has changed
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1 7/8 AR headers, roto-fab CAI with radiator, fuse box, and valve cover, cam, upgraded fuel system with 85lb injectors, under drive pulley, TVS 2300 S/C, muffler delete, aftermarket wheels, AAC headlights fogs sidemarkers footwell dome and trunk lights.....That's 659.9 RWHP 611.9RWTQ
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05-31-2010, 02:10 PM
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#3 |
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Pull the code and post it.
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05-31-2010, 05:36 PM
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#4 |
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Choke on that causality!
Drives: 2010 2SS/RS Join Date: Sep 2009
Location: Minnesota
Posts: 645
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When you change the air flow characteristics (intake & headers in your case) its easy to generate a code. Also your tune may not be accommodating the changes fully. Call OnStar and ask them to run a diagnostic, they can give you the actual code.
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05-31-2010, 07:02 PM
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#5 |
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Drives: L99 cyber grey Join Date: Aug 2009
Location: san jose
Posts: 145
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Think this will hurt the car?
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05-31-2010, 07:27 PM
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#6 |
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Choke on that causality!
Drives: 2010 2SS/RS Join Date: Sep 2009
Location: Minnesota
Posts: 645
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Without knowing the code its impossible to know.
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05-31-2010, 08:53 PM
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#7 |
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Drives: L99 cyber grey Join Date: Aug 2009
Location: san jose
Posts: 145
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below are the codes:
p1133 po171 po174 p1153 |
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05-31-2010, 09:09 PM
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#8 | |
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Choke on that causality!
Drives: 2010 2SS/RS Join Date: Sep 2009
Location: Minnesota
Posts: 645
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Quote:
P0174 System too Lean (Bank 2) P1153 HO2S Insufficient Switching P1133 HO2S Insufficient Switching from http://www.engine-light-help.com/oxy...sor-codes.html "These codes tell you that despite the computers attempts to correct fuel trim (the amount of time the injectors stay on, delivering more or less fuel as needed); it can not obtain the correct air/fuel ratio. The most common issues for lean codes are: 1. Vacuum leaks - check for failed or loose vacuum lines, leaking intake gaskets, intake air tubes loose or any other source of un-metered air leaks (leaks after the Mass Air Flow Sensor) 2. Restricted fuel filter or bent/pinched fuel system lines 3. Incorrect input from other sensors, such as the Mass Air Flow Sensor, which may not always drop a separate code " All look to be oxygen sensor related. |
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05-31-2010, 09:17 PM
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#9 |
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Drives: L99 cyber grey Join Date: Aug 2009
Location: san jose
Posts: 145
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I should be able to take it back to the tuner and he should be able to correct this pretty easily, correct?
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05-31-2010, 09:22 PM
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#10 |
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Choke on that causality!
Drives: 2010 2SS/RS Join Date: Sep 2009
Location: Minnesota
Posts: 645
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Yes take it back. I saw this on two other cars (friends of mine) and it was an easy fix for them.
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05-31-2010, 09:22 PM
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#11 |
         Drives: 2010 2SS IOM L99 Join Date: Jan 2010
Location: LOUISVILLE,KY..
Posts: 7,545
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take it back and have it retuned.
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05-31-2010, 10:19 PM
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#12 |
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Is there a key trick or anything to view the codes on the dash?
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05-31-2010, 11:25 PM
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#13 |
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Drives: L99 cyber grey Join Date: Aug 2009
Location: san jose
Posts: 145
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no, called on-star
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06-01-2010, 01:48 PM
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#14 |
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Choke on that causality!
Drives: 2010 2SS/RS Join Date: Sep 2009
Location: Minnesota
Posts: 645
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Please remember to share your findings & results with us so that others will have a heads up.
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