question about going back to stock AFTER a dyno tune - LS1TECH

Log In 


Corvette Performance
C5 | Z06 | C6 | ZR1

question about going back to stock AFTER a dyno tune

Reply
 
Thread Tools Search this Thread
Old 08-14-2012, 08:15 AM   #1
TECH Regular
Thread Starter
iTrader: (3)
 
Join Date: Jun 2008
Location: Atlanta
Posts: 465
Default question about going back to stock AFTER a dyno tune

I'm selling my '05 and I'm taking off my lingtubes, off-road X and corsa and putting all the stock components back on and saving then for my next c6. The car has already been dyno tuned though for the exhaust and the cai I have installed. Overall the car is still very stock, but now the computer has been tuned for the free flowing exhaust.

Question is, will the car run ok with the stock exhaust on it now? Its not going to throw any codes is it? Maybe that's a dumb question.. but I've never went back to stock before after a dyno tune.
rio95cobra is offline   Reply With Quote
Old 08-14-2012, 08:16 AM   #2
TECH Regular
Thread Starter
iTrader: (3)
 
Join Date: Jun 2008
Location: Atlanta
Posts: 465
Default

*my phone is to blame for the spelling
rio95cobra is offline   Reply With Quote
Old 08-14-2012, 12:15 PM   #3
TECH Regular
Thread Starter
iTrader: (3)
 
Join Date: Jun 2008
Location: Atlanta
Posts: 465
Default

Anyone?
rio95cobra is offline   Reply With Quote
Old 08-14-2012, 12:33 PM   #4
TECH Fanatic
iTrader: (4)
 
Dark SS's Avatar
 
Join Date: Sep 2008
Location: Illinois
Posts: 1,087
Default

It will be fine, just running a little rich. The tuner that did the work should be able to just re-load the stock tune.
Dark SS is offline   Reply With Quote
Old 08-14-2012, 01:05 PM   #5
TECH Regular
Thread Starter
iTrader: (3)
 
Join Date: Jun 2008
Location: Atlanta
Posts: 465
Default

That's just the thing.. I bought it tuned and I'm not sure who did it. Without reloading the stock tune though it'll idle and drive fine though w/o any lights?
rio95cobra is offline   Reply With Quote
Old 08-15-2012, 10:19 AM   #6
TECH Fanatic
iTrader: (4)
 
Dark SS's Avatar
 
Join Date: Sep 2008
Location: Illinois
Posts: 1,087
Default

Yeah, it should. The tune usually shuts off the rear O2's. By adding stock exhaust it just won't read the rears so no light will come on. By adding headers with a stock tune the rear O2's read that cat isn't working and throws the code. Like I said, it will run rich but should idle fine.
Dark SS is offline   Reply With Quote
Old 08-15-2012, 12:40 PM   #7
TECH Addict
iTrader: (1)
 
pittman's Avatar
 
Join Date: Sep 2007
Location: Orange Park Fl
Posts: 2,203
Default

You can also get a tune from someone on line (do a search) and have the tuner flash it. Only takes him 4-5 minutes.
pittman is offline   Reply With Quote
Old 08-15-2012, 04:26 PM   #8
Launching!
 
Join Date: Dec 2008
Location: ATX
Posts: 250
Default

HP Tuners may have stock ECU images / settings you can download. I checked their 2003 z06 file against my stock one and it matched.
ysb02 is offline   Reply With Quote
Old 08-15-2012, 07:08 PM   #9
12 Second Club
iTrader: (27)
 
MavrikTA's Avatar
 
Join Date: Feb 2006
Location: Texas....thank God.
Posts: 608
Default

I cant see any issues considering the tune was for mild mods. It will run a bit more rich. That should be all.
MavrikTA is offline   Reply With Quote
Old 09-14-2012, 04:23 PM   #10
9 Second Club
iTrader: (12)
 
Chevy406's Avatar
 
Join Date: Feb 2007
Location: Huntsville, AL
Posts: 753
Default

It's not going to run rich - that's what idle trim, short term fuel trim, and long term fuel trims are there for. The ECM will trim fuel +/- 25% in order to maintain 14.7 air fuel ratio. If your AFR gets beyond the +/- 25% range then yes it will throw a lean or rich DTC. More than likely it will not show a check engine light but you will not know for sure until you try. It would be very easy for anyone with HP Tuners to re-load a stock C5 calibration back to it.
Chevy406 is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Performa built trans line pressure/tune plz read have to explain :) ironmikektm525 Automatic Transmission 10 01-25-2016 07:23 PM
Do I need a re-tune???? pharmbiak Generation III External Engine 8 08-17-2015 06:29 PM
Tuning with open headers? Tram PCM Diagnostics & Tuning 1 10-27-2007 04:58 PM
Is a dyno tune worth the money? Provie General LSX Automobile Discussion 20 09-07-2007 10:37 AM


Tags
back, c6, camaro, car, cat, corvette, dyno, ecu, ls1tech, mess, ss, stock, system, taking, tune, tuned

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 08:39 PM.