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06-04-2018, 02:02 AM
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#1 |
 Drives: 2012 ZL1 Camaro Join Date: Mar 2018
Location: Alberta
Posts: 19
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Hard to start after engine is warm
Hey
Was wondering if someone can point me in the right direction . Have a 2012 zl1 Installed the following BTR stage 3 cam kit FIC ( clinic ) 850 injectors 2.55/9.1 pulleys LT headers Roto fab intake Had it tuned and car runs great but have starting problems after its warm. Cold starts are ok but after driving the car and it sits for awhile it's pain to start back up.. Have to sometimes give it a little gas to fire. Any ideas what the problem could be in the tuning ? |
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06-05-2018, 07:13 AM
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#2 |
  
Drives: 2013 ZL1 Join Date: Dec 2012
Location: Illinois
Posts: 807
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Headers can do that
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'13 ZL1
'06 TBSS '98 TJ '87 GN |
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06-05-2018, 08:38 AM
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#3 |
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"Old School"
Drives: 2010 2SS L99 Join Date: Apr 2015
Location: Sherrills Ford, NC
Posts: 1,295
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Sounds like it's in the tune. If the starter was hot it wouldn't crank at all.
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06-06-2018, 12:22 AM
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#4 |
      
Drives: 2013 ZL1 416 Join Date: Feb 2013
Location: Langley B.C
Posts: 2,619
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just had the same problem changed battery and all good now
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06-06-2018, 06:04 AM
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#5 |
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Team 913
Drives: '14 ZL1, '15 Jeep GC, ‘22 Ram 2500 Join Date: Apr 2015
Location: USA, Central CA
Posts: 1,119
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If you had the mods for a while it isnt the tune, if it started right after the mods look at your tune, check your batt cables.
If you need to replace your battery, i put ACDelco 94RAGM Professional AGM Automotive BCI Group 94R Battery (back in nov, works great) https://www.amazon.com/dp/B006N91C2M?ref=yo_pop_ma_swf |
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06-08-2018, 06:30 PM
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#6 |
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Drives: 2012 ZL1 Camaro Join Date: Mar 2018
Location: Alberta
Posts: 19
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I'm lost to as why it would be the battery? It cranks over fine, it just won't fire right away. It's has started happenin right after I got it tuned with the new injectors
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06-08-2018, 08:34 PM
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#7 |
 
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Since it started rite after the injectors and tune then its probably the tune but Get a heat wrap for your starter. Longtube headers are really close to the starter and the heat will kill it. I had the same problem then I got a heat wrap and it helped. But get your battery checked. These cars are finiky with all the electronics its has.
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Livernois Stage II Heads & Cam, LS7 Lifters, Ported Intake & Throttle Body, Rotofab CAI, BBK High Flow Fuel Rail @ Guage, Eaton Tru Trac Posi with 3.91 gears, 1000 HP Axels, Kooks Long tubes & full Corsa Exhaust, GM Hurst Short Throw Shifter, Mcleod RXT Twin Disc, Vitesse Throttle Controller, 1.5" Lowering Springs, Strut Tower Brace, SLP 25% Underdrive Pulley, Apex reservoir relocation kit and air scoop.
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06-08-2018, 10:29 PM
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#8 | |
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Drives: 2013 ZL1 416 Join Date: Feb 2013
Location: Langley B.C
Posts: 2,619
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Quote:
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06-09-2018, 08:41 AM
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#9 | |
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ZL1 Pilot
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Quote:
Typical with new injectors. I bet your makeup pulse minimum is still at the stock setting. I always lower this slightly with bigger injectors. Just for fixing the issue you are describing
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 GP Tuning 2.5 Cam, RPS Carbon Twin Clutch, Ported Blower, Kook's Headers, Cold Air Inductions CAI, ID850's, 9.17 Lower, 2.5 Upper, JMS BAP, Pedders Front Radius Arm Inserts, Whiteline Subframe Inserts, Tuned by me with HP Tuners Idle Clip Link...........https://www.youtube.com/watch?v=gTL8S9eHwbs |
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06-09-2018, 01:44 PM
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#10 | |
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Drives: 2012 ZL1 Camaro Join Date: Mar 2018
Location: Alberta
Posts: 19
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Quote:
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06-09-2018, 01:46 PM
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#11 |
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Drives: 2012 ZL1 Camaro Join Date: Mar 2018
Location: Alberta
Posts: 19
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Any idea what to lower it to for starters?
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06-09-2018, 01:48 PM
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#12 | |
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ZL1 Pilot
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Quote:
.105 across the board.
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GP Tuning 2.5 Cam, RPS Carbon Twin Clutch, Ported Blower, Kook's Headers, Cold Air Inductions CAI, ID850's, 9.17 Lower, 2.5 Upper, JMS BAP, Pedders Front Radius Arm Inserts, Whiteline Subframe Inserts, Tuned by me with HP Tuners Idle Clip Link...........https://www.youtube.com/watch?v=gTL8S9eHwbs |
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06-09-2018, 03:14 PM
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#13 | |
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Drives: 2012 ZL1 Camaro Join Date: Mar 2018
Location: Alberta
Posts: 19
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Quote:
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06-15-2018, 01:07 PM
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#14 |
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Drives: 2012 ZL1 Camaro Join Date: Mar 2018
Location: Alberta
Posts: 19
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Well it's not the make up pulse. They are already set lower than. 105.
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