09-06-2009, 11:04 PM | #1 |
Drives: 2010 RS SS Join Date: Aug 2009
Location: Huntsville, AL
Posts: 196
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MAP sensor
Does the stock L99 have a single bar MAP sensor that needs changed out if going with forced induction?
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09-06-2009, 11:13 PM | #2 |
CamaroFans.com
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Do you mean MAF Mass Air Flow?... and what exactly do you mean by forced induction?
Blower or CAI |
09-06-2009, 11:25 PM | #3 |
Drives: 2010 RS SS Join Date: Aug 2009
Location: Huntsville, AL
Posts: 196
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No, I mean MAP...Manifold Absolute Pressure.
Typically LS engines have a 1 bar meaning they measure from full vacuum to atmospheric. A Supercharged Cobalt, for example, has like a 2 bar one to measure boost. many people, when tuning, decide to go without the MAF totally, and just use the MAP sensor for air estimates. Let's say a turbocharger for sake of discussion....a Maggie might have that built-in. |
09-06-2009, 11:35 PM | #4 |
CamaroFans.com
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OK... got it... I've heard of some replacing the MAF with aftermarket MAP. Not sure if there is a stock MAP sensor someplace else.
Last edited by mlee; 09-06-2009 at 11:53 PM. |
09-06-2009, 11:52 PM | #5 |
Drives: 2010 RS SS Join Date: Aug 2009
Location: Huntsville, AL
Posts: 196
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Well, I suspect it has both a MAF and a MAP from the factory.....The LS1 engines did. It's just that some folks do not MAF sensors and use the MAP solely.
I was just wondering if it needs swapped out for a boosted engine for the programming to work right. |
09-07-2009, 07:19 AM | #6 |
I thought the LS3 was 1.5 Bar, not sure on the L99.
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Keith 2SS/RS MN6 in CGM. Delivered 6/22/09. Blown 7/29/09. Sold 12/6/10.
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09-07-2009, 07:31 AM | #7 |
Master of Medicine
Drives: 4th Gen Join Date: Oct 2008
Location: Kentucky
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Yes, you need to replace it (if you are L99 for sure, I can only comment on that)...I got rid of my 1 bar and added a 2 bar...my tuner said it would have been cool if they would have come with the ZR1 style 3 bar, but oh well.
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2002 Camaro SS. 408 LS2. 500+RWHP/480RWTQ. Full UMI RR suspension. Koni/Strano. 295F/315R. 3500#(55/45)
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09-07-2009, 06:10 PM | #8 |
Drives: 2010 RS SS Join Date: Aug 2009
Location: Huntsville, AL
Posts: 196
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09-07-2009, 08:37 PM | #9 |
Master of Medicine
Drives: 4th Gen Join Date: Oct 2008
Location: Kentucky
Posts: 784
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Send 1sickta a pm and ask him...I think he knows what to tell you to ask for.
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2002 Camaro SS. 408 LS2. 500+RWHP/480RWTQ. Full UMI RR suspension. Koni/Strano. 295F/315R. 3500#(55/45)
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09-07-2009, 09:19 PM | #10 |
Dog Is My Copilot
Drives: 2011 2SS/RS LS3 Join Date: Jun 2009
Location: Pittsburgh, PA
Posts: 1,394
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gmpartsdirect online catalog shows these part numbers for the ZR-1:
pressure sensor, baro 12591290 pressure sensor, inlet 12592525 pressure sensor, outlet 12592525 Please VERIFY these numbers before ordering.
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