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08-22-2013, 07:11 PM
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#1 |
 Drives: Camaro Join Date: Oct 2009
Location: USA
Posts: 14
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Slow start after HP Tuners flash
Quick question, I used hp tuners to turns off CAGS on my LS3 camaro and its off it will not turn on anymore however since flashing the car the car starts really slow cranks for like 2-3 seconds then starts seemed strange so i flashed it back to stock and it did the same thing still starts slow this happened all after I flashed the tune on the car. Any suggestions??
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08-22-2013, 07:38 PM
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#2 |
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Master ASE, GM, LSX Tech.
Drives: 2010 Camaro SS Join Date: Oct 2012
Location: Austin, TX
Posts: 1,034
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Did you drain the battery down doing the reflash?
I would check battery votage and make sure the cables are clean and tight. |
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08-22-2013, 07:45 PM
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#3 |
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Drives: Camaro Join Date: Oct 2009
Location: USA
Posts: 14
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Nope everything is good the battery is fully charged happened right after starts fine just cranks for a few seconds
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08-22-2013, 08:38 PM
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#4 |
 
Drives: Black 2SS Join Date: Oct 2009
Location: Westminster, MD
Posts: 169
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Disconnect battery power or unplug the ecm for a few seconds. This is common whenever you do a flash with HP.
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08-23-2013, 07:56 AM
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#5 |
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PHAT B33
Drives: 2012 TF3 Camaro 2SS/RS M6 Join Date: Jun 2012
Location: Dark of the Moon
Posts: 1,460
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Our OS/ECU's are known for A/C disable and slow fire up after the flash. Chris at HPT is working on it but I never have an issue except the first start.
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Another 1 of 371 '12 T3 LS3 M6's built.
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08-23-2013, 11:09 AM
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#6 |
    
Drives: 2010 2ss ss/rs abm, 2016 2ss/rs hbm Join Date: Feb 2009
Location: N. Phx, Az
Posts: 1,332
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After you flash you need to turn the key off and open the drivers door for about 10 seconds to shut down the RAP module, then wait for about 30 seconds before you try to restart it. Its a HP Tuners thing, if you didn't you will have the long crank.
The fix, disconnect the battery for at least a minute. Good luck and have fun.
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URR2SLO - If you're not going fast enough, get out the way......
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08-25-2013, 11:14 AM
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#7 |
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Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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Is the fuse pull just as effective? Just thinking it would be nice to NOT have to reset everything every time you flash.
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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08-25-2013, 05:57 PM
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#8 | |
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V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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Quote:
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
Last edited by litle88; 08-26-2013 at 04:44 AM. |
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08-25-2013, 09:20 PM
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#9 |
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WICKDSS
Drives: 2011 1SS/RS IOM LS3 Join Date: May 2010
Location: Wichita, Kansas
Posts: 1,111
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It's an HP Tuners thing. Happens every time I flash the ecm. Get a long crank. Nothing to worry about. It usually starts fine the next time after the first long start. Battery disconnect for a few seconds does the trick too though.
__________________
2011 IOM SS/RS, M6. Look up our all generation Camaro club website at Heartland Camaros
Gforce Engineering Drivetrain, ECS 1500 Supercharger, TSP Cam, Alky Controls Meth single nozzle. 91 octane, 698 RWHP 625 rwtq. 4200#+, Tuned by Justin "Justune" Kalwei 11.57 @ 126.8 mph with a crappy 1.80 60'.....still learning to drive....M&H DR's and skinnies on 17" Welds. |
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