is this a mechanical or tuning issue?

***VSGTS14*** · 05-26-2006, 04:11 PM

i have not gotten my car retuned yet, since the new clutch has to be installed first..

however, i threw a cel today and keep in mind my car has not been running 100% at all.

i don't know what the code is, but i'll try to get it read
my question is my car isn't running nicely in boost....after 5 psi, it seems to get real choppy and the exhaust will sound like that and it just hesitates all the way to 7k.
5 psi and below, it acts fine...sometimes it will idle funny.

i know i really need to retuned, i just want to know if this could possibly be something like a boost leak somewhere or a bad injector or cylinder misfires.

***JPWEraser*** · 05-26-2006, 05:44 PM

I would be more inclined to think that you're running too rich just based on your description. Do you have a lot of black smoke when you get into boost?

***BoostJunkie*** · 05-26-2006, 05:44 PM

Sounds like a tuning issue. Are you hitting full boost or is the car hesitating? You should read that code asap and I'm sure it will give you much better insight into the issue.

jsh139 · 05-26-2006, 05:48 PM

+1 for a tuning issue. You can't expect another car's tune to work 100% with your engine. I would get it retuned ASAP before you blow something up

***VSGTS14*** · 05-26-2006, 05:58 PM

no smoke, but it use to spew black smoke....too rich sounds like a problem also cause it does backfire and pop a lot more.

it gets to full boost which is only 16 psi, it's just after 5 it's all choppy and hesitates and isn't powerful at all.

i also think it's tuning and i knew it wouldn't run correct anyway...i just want to make sure it's not a leak or something.
i'll try to get the code read tomorrow.

neal0124 · 05-26-2006, 06:43 PM

If it didn't throw a code until after the clutch was changed then I would check all the electrical connections to make sure they're connected properly. Did it run this crappy before the clutch was changed, or did it get worse after the clutch?

***VSGTS14*** · 05-26-2006, 07:40 PM

clutch was not changed yet.

***VSGTS14*** · 05-27-2006, 09:07 AM

i reset my ecu and it's completely fine now.
i think it's cause i had my meth spraying and it was acting weird, so i turned it off and the ecu went bonkers.

05-26-2006, 04:11 PM	#1
*VSGTS14* Muller Chevrolet Car: 09 DGM STi Fav Mod: beastly fenders Location: Milford, NJ Posts: 10,390 IWSTI Addict since: Oct 2004 Trader Rating: (11)	is this a mechanical or tuning issue? i have not gotten my car retuned yet, since the new clutch has to be installed first.. however, i threw a cel today and keep in mind my car has not been running 100% at all. i don't know what the code is, but i'll try to get it read my question is my car isn't running nicely in boost....after 5 psi, it seems to get real choppy and the exhaust will sound like that and it just hesitates all the way to 7k. 5 psi and below, it acts fine...sometimes it will idle funny. i know i really need to retuned, i just want to know if this could possibly be something like a boost leak somewhere or a bad injector or cylinder misfires. This ad is not endorsed by this member. Please register or login to hide this ad.

05-27-2006, 09:07 AM	#8
*VSGTS14* Muller Chevrolet Car: 09 DGM STi Fav Mod: beastly fenders Location: Milford, NJ Posts: 10,390 IWSTI Addict since: Oct 2004 Trader Rating: (11)	i reset my ecu and it's completely fine now. i think it's cause i had my meth spraying and it was acting weird, so i turned it off and the ecu went bonkers. This ad is not endorsed by this member. Please register or login to hide this ad.

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05-26-2006, 05:44 PM	#2
*JPWEraser* Platinum Member Car: 05 STi Fav Mod: Do Luck CF Location: East TN Posts: 1,590 IWSTI Addict since: May 2005 Trader Rating: (6)	I would be more inclined to think that you're running too rich just based on your description. Do you have a lot of black smoke when you get into boost?

05-26-2006, 05:44 PM	#3
*BoostJunkie* Sold My Soul For Mods Car: '05 CGM STi Fav Mod: Track Time Location: Bethesda, MD Posts: 6,765 IWSTI Addict since: Jun 2004 Trader Rating: (14)	Sounds like a tuning issue. Are you hitting full boost or is the car hesitating? You should read that code asap and I'm sure it will give you much better insight into the issue.

05-26-2006, 05:48 PM	#4
jsh139 How YOU Doin? Car: 2006 Audi S4 Fav Mod: OMGHI2U! Location: Philly 'burbs Posts: 7,710 IWSTI Addict since: Apr 2004 Trader Rating: (8)	+1 for a tuning issue. You can't expect another car's tune to work 100% with your engine. I would get it retuned ASAP before you blow something up

05-26-2006, 05:58 PM	#5
*VSGTS14* Muller Chevrolet Car: 09 DGM STi Fav Mod: beastly fenders Location: Milford, NJ Posts: 10,390 IWSTI Addict since: Oct 2004 Trader Rating: (11)	no smoke, but it use to spew black smoke....too rich sounds like a problem also cause it does backfire and pop a lot more. it gets to full boost which is only 16 psi, it's just after 5 it's all choppy and hesitates and isn't powerful at all. i also think it's tuning and i knew it wouldn't run correct anyway...i just want to make sure it's not a leak or something. i'll try to get the code read tomorrow.

05-26-2006, 06:43 PM	#6
neal0124 Senior STI Driver Car: 05 STi Fav Mod: Whiteline sways, ohlins coils, cusco motor mounts Location: Castaic, Southern Califor Posts: 311 IWSTI Addict since: Dec 2005 Trader Rating: (0)	If it didn't throw a code until after the clutch was changed then I would check all the electrical connections to make sure they're connected properly. Did it run this crappy before the clutch was changed, or did it get worse after the clutch?

05-26-2006, 07:40 PM	#7
*VSGTS14* Muller Chevrolet Car: 09 DGM STi Fav Mod: beastly fenders Location: Milford, NJ Posts: 10,390 IWSTI Addict since: Oct 2004 Trader Rating: (11)	clutch was not changed yet.