Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
dave@hennessey
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > General Camaro Forums > Camaro ZL1 Forum - ZL1 Specific Topics > Engine | Exhaust | Bolt-On | Drivetrain Modifications


Reply
 
Thread Tools
Old 06-04-2018, 03:02 AM   #1
Stilly1974
 
Drives: 2012 ZL1 Camaro
Join Date: Mar 2018
Location: Alberta
Posts: 19
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 ?
Stilly1974 is offline   Reply With Quote
Old 06-05-2018, 08:13 AM   #2
SecondZ28

 
SecondZ28's Avatar
 
Drives: 2013 ZL1
Join Date: Dec 2012
Location: Illinois
Posts: 807
Headers can do that
__________________
'13 ZL1
'06 TBSS
'98 TJ
'87 GN
SecondZ28 is offline   Reply With Quote
Old 06-05-2018, 09:38 AM   #3
WoodBoss
"Old School"
 
Drives: 2010 2SS L99
Join Date: Apr 2015
Location: Sherrills Ford, NC
Posts: 1,296
Sounds like it's in the tune. If the starter was hot it wouldn't crank at all.
WoodBoss is offline   Reply With Quote
Old 06-06-2018, 01:22 AM   #4
Blownfogger540


 
Blownfogger540's Avatar
 
Drives: 2013 ZL1 416
Join Date: Feb 2013
Location: Langley B.C
Posts: 2,548
just had the same problem changed battery and all good now
Blownfogger540 is offline   Reply With Quote
Old 06-06-2018, 07:04 AM   #5
Crash76
Team 913
 
Drives: '14 ZL1, '12 GMC Terrain
Join Date: Apr 2015
Location: USA, Central CA
Posts: 1,118
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
Crash76 is offline   Reply With Quote
Old 06-08-2018, 07:30 PM   #6
Stilly1974
 
Drives: 2012 ZL1 Camaro
Join Date: Mar 2018
Location: Alberta
Posts: 19
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
Stilly1974 is offline   Reply With Quote
Old 06-08-2018, 09:34 PM   #7
charles71
 
charles71's Avatar
 
Drives: 2011 Camaro SS
Join Date: Aug 2015
Location: Southern Maryland
Posts: 110
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.
__________________
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.
charles71 is offline   Reply With Quote
Old 06-08-2018, 11:29 PM   #8
Blownfogger540


 
Blownfogger540's Avatar
 
Drives: 2013 ZL1 416
Join Date: Feb 2013
Location: Langley B.C
Posts: 2,548
Quote:
Originally Posted by Stilly1974 View Post
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
oh you said hard to start , not that it spins over no prob but wont fire
Blownfogger540 is offline   Reply With Quote
Old 06-09-2018, 09:41 AM   #9
ABADZL1
ZL1 Pilot
 
ABADZL1's Avatar
 
Drives: 2013 ZL1
Join Date: Apr 2014
Location: TN
Posts: 1,668
Quote:
Originally Posted by Stilly1974 View Post
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

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
__________________

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
ABADZL1 is offline   Reply With Quote
Old 06-09-2018, 02:44 PM   #10
Stilly1974
 
Drives: 2012 ZL1 Camaro
Join Date: Mar 2018
Location: Alberta
Posts: 19
Quote:
Originally Posted by ABADZL1 View Post
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
Thanks!! I'll have a look at that
Stilly1974 is offline   Reply With Quote
Old 06-09-2018, 02:46 PM   #11
Stilly1974
 
Drives: 2012 ZL1 Camaro
Join Date: Mar 2018
Location: Alberta
Posts: 19
Any idea what to lower it to for starters?
Stilly1974 is offline   Reply With Quote
Old 06-09-2018, 02:48 PM   #12
ABADZL1
ZL1 Pilot
 
ABADZL1's Avatar
 
Drives: 2013 ZL1
Join Date: Apr 2014
Location: TN
Posts: 1,668
Quote:
Originally Posted by Stilly1974 View Post
Any idea what to lower it to for starters?
Try
.105 across the board.
__________________

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
ABADZL1 is offline   Reply With Quote
Old 06-09-2018, 04:14 PM   #13
Stilly1974
 
Drives: 2012 ZL1 Camaro
Join Date: Mar 2018
Location: Alberta
Posts: 19
Quote:
Originally Posted by ABADZL1 View Post
Try
.105 across the board.
Thanks
Stilly1974 is offline   Reply With Quote
Old 06-15-2018, 02:07 PM   #14
Stilly1974
 
Drives: 2012 ZL1 Camaro
Join Date: Mar 2018
Location: Alberta
Posts: 19
Well it's not the make up pulse. They are already set lower than. 105.
Stilly1974 is offline   Reply With Quote
 
Reply

Thread Tools

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

Forum Jump


All times are GMT -5. The time now is 03:00 PM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.