2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

boost?

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Old 05-23-2007, 01:14 PM
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boost?

i just got a new ss/sc 2 weeks ago and its only runnin 4psi...about 3 months ago the dealer did somehtin to the PCM, would that have anything to do with this...and how can i fix this
Old 05-23-2007, 01:16 PM
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well the boost gauge isnt mechanical and does get its reading from the PCM.......so maybe what did they do to the PCM and why did they do it?
Old 05-23-2007, 01:16 PM
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make the dealer fix it. keep taking it back. if your only boosting 4 psi, your guage might be fucked up, or literally your only boosting 4. You should see about 11psi stock
Old 05-23-2007, 01:24 PM
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well i take it in to the dealer friday to get my headlights adjusted so il have them deal with it...

my friend told me that if i unplug the PCM for a few minutes and connect it back that it will fix the problem...is this true?

Last edited by doubleC; 05-23-2007 at 01:24 PM. Reason: Automerged Doublepost
Old 05-23-2007, 01:31 PM
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You need a lot more than 4psi.
Old 05-23-2007, 01:34 PM
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ya i know, i just noticed this the other day...i dont know y its so low wheher the dealer did it or not
Old 05-23-2007, 01:47 PM
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Maybe they put a 4.5" pulley on there without you knowing
Old 05-23-2007, 03:19 PM
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does anybody know where the PCMis located?
Old 05-23-2007, 03:26 PM
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Its under the hood. If you want to reset the PCM, walk to the trunk and disconnect the battery.

You sure this is under full throttle, right? You won't get full boost sitting at a stoplight.
Old 05-23-2007, 04:43 PM
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ya last night me and my friend were testin its limits and it was only goin to 4psi

ya we disconnected the battery and it didnt do anything

Last edited by doubleC; 05-23-2007 at 04:43 PM. Reason: Automerged Doublepost
Old 05-23-2007, 05:59 PM
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Originally Posted by doubleC
does anybody know where the PCMis located?
DO NOT DISCONNECT THE PCM!!!!!!!! Discconnect the battery for 20 mins, and the pcm will be reset to stock. IF you have stage II, and you disconnect that battery for 20 mins, it will just reset the computer to the stock Stage II tune.

You HAVE to disconnect it for at least 20 mins.
Old 05-23-2007, 08:53 PM
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Any chance you accidentally got a gage reading kPa?
Old 05-23-2007, 10:07 PM
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20 minutes...i only let it sit for like 3 or 4...thanks, and whats a kPa?

Originally Posted by Imlikedrpepper
DO NOT DISCONNECT THE PCM!!!!!!!! Discconnect the battery for 20 mins, and the pcm will be reset to stock. IF you have stage II, and you disconnect that battery for 20 mins, it will just reset the computer to the stock Stage II tune.

You HAVE to disconnect it for at least 20 mins.
i had it disconnected for about 25 minutes and it still isnt fixed any other suggestions or shouldi just let the dealer fix it

Last edited by doubleC; 05-23-2007 at 10:07 PM. Reason: Automerged Doublepost
Old 05-23-2007, 10:39 PM
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I say take it back to the dealer, its a warranty issue
Old 05-23-2007, 10:42 PM
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Originally Posted by handyjoe
Any chance you accidentally got a gage reading kPa?
That doesn't even make sense.. kPa is a significantly higher reading then PSI.

Originally Posted by Imlikedrpepper
You should see about 11psi stock
I run a little over 90kPa at WOT which is roughly 13.5psi. (P.S. I'm stock.)
Old 05-23-2007, 10:52 PM
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Originally Posted by MaJ
That doesn't even make sense.. kPa is a significantly higher reading then PSI.



I run a little over 90kPa at WOT which is roughly 13.5psi. (P.S. I'm stock.)


sounds like u have a bad cat ur running 13.5 stock

and your math is off,

6.975 kpa per PSI so its roughly 12.9 psi. and our stock guages suck your prolly getting 12.5 only
Old 05-24-2007, 12:29 AM
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Originally Posted by MaJ
That doesn't even make sense.. kPa is a significantly higher reading then PSI.



I run a little over 90kPa at WOT which is roughly 13.5psi. (P.S. I'm stock.)
I know it's not possible, but if the gauge was in Megapascals like a WRX it would make more sense haha.
Old 05-24-2007, 12:34 AM
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Im seeing 15 on a cold night, I have intake, exhaust and a tune
Old 05-24-2007, 01:14 AM
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megapacals would just read 0.09 instead of ninety lol

id rather read Bar instead of megapascal, i prefer kilopacals to megapascals as i prefer psi to kilopacals lol but inreality there all just gauge pressure, you have to add atmospheric pressure yet to get absolute, k im done being a nerd lol
Old 05-24-2007, 08:30 AM
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Ok, so no then.

Take it to the dealer.
Old 05-24-2007, 11:31 AM
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well i disconnected the battery and now my check engine light is on, so im just gonna bitch at the dealer and make them fix it...im pretty sure they r the ones who fucked it up in the first place...
Old 05-24-2007, 04:31 PM
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Originally Posted by sunfirejoe
megapacals would just read 0.09 instead of ninety lol

id rather read Bar instead of megapascal, i prefer kilopacals to megapascals as i prefer psi to kilopacals lol but inreality there all just gauge pressure, you have to add atmospheric pressure yet to get absolute, k im done being a nerd lol
Haha, stage II kit has a maximum boost of exactly .1034211 Megapascals.
Old 05-24-2007, 05:11 PM
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you're running 18.7 psi



figure that one out
Old 05-24-2007, 05:20 PM
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Originally Posted by Area47
you're running 18.7 psi



figure that one out
.128931961 Mpa haha . I'm using a calculator obviously.
Old 05-24-2007, 08:54 PM
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well 1 megapascal = 145.037738 psi

so if i figure out math wise

i take .1034211 mulitpliy it by 145.037738 psi

you get 14.9999624054718 PSI, lol so 15 psi

who needs a online calculator when u got conversion sheets

i need them daily for work so yah lol


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