STARTING ISSUE NEED HELP - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

MANNYS2SS/RS · 02-08-2013, 04:10 PM

ENGINE PARTS
LS3 Motor stock bottom
ProCharger D1SC stage-2
Kooks 1-7/8 headers No cats
ID850 injectors
ZR1 3bar map sensor
Zl1 fuel pump
KB BAP
VMAX throttle body
160*F Thermostat
Comp Custom Cam 227/239 .614/.624 on a 115+3 LS
Snow stage-3 Meth kit

Hi I need some expert advise. I have had a starting issue since I installed my cam back in September. My car started perfect prier to the cam. I am reaching out to see if anyone has had a similar problem, and has found a solution to it. The only things that were added during cam install were the ID850 injectors and there data, Cam, and all the necessary parts for the cam install plus the tune.
The car starts fine in the morning with only a small hiccup after sitting all night. Once the car starts you can turn it off and on without any issue. It also drives amazing but, after you drive the car for a little while and turn it off. If you let it sit for 30 to 45 minutes, it has a hard time starting. It just cranks over and acts like it has no fuel, see below video and turn up the volume.

I have changed injectors, fuel pump and also removed the KB BAP, Meth kit. Had the Battery checked and checked wiring and all grounds for any short with no luck. My tuner has gone over the tune several times with no luck, we are out of ideas if anyone can help?

SSKyle · 02-08-2013, 04:17 PM

+1. My car does the exact same, but doesn't crank as long( maybe 1-4 cranks more than normal). I have the turbonetics kit with no cam.

MANNYS2SS/RS · 02-08-2013, 04:19 PM

What injectors do you have?

SSKyle · 02-08-2013, 04:24 PM

Stock ls3
Zl1pump
I'd 850
Zr1 map
Zr1 plugs
7 psi

MANNYS2SS/RS · 02-08-2013, 04:29 PM

Quote:

Originally Posted by SSKyle

Stock ls3
Zl1pump
I'd 850
Zr1 map
Zr1 plugs
7 psi

Very similar setup!!

2SSCAMARO · 02-08-2013, 05:02 PM

Did you install a fuel pressure gage at the fuel rail and verify that you actually have proper fuel pressure while it is doing the longer than normal cranking?

BLK2SS · 02-08-2013, 05:09 PM

What was used to flash the tune? If it was HP Tuners try disconnecting the 3 plugs from the PCM and reconnecting. If that doesn't help, I would be looking at the tune.

K32 Camaro · 02-08-2013, 05:57 PM

Had the same problem on my pontiac after cats broke. AFR was off just enough to make it do that. Gotta be the tune.

MANNYS2SS/RS · 02-08-2013, 06:12 PM

Quote:

Originally Posted by 2SSCAMARO

Did you install a fuel pressure gage at the fuel rail and verify that you actually have proper fuel pressure while it is doing the longer than normal cranking?

My tuner said he did and it was good.

Quote:

Originally Posted by BLK2SS

What was used to flash the tune? If it was HP Tuners try disconnecting the 3 plugs from the PCM and reconnecting. If that doesn't help, I would be looking at the tune.

He uses EFI live

Quote:

Originally Posted by K32 Camaro

Had the same problem on my pontiac after cats broke. AFR was off just enough to make it do that. Gotta be the tune.

My AFR is about 14.6 at idle and 11.4 on the top end

dragon22 · 02-08-2013, 06:35 PM

I have a 2010 Camaro that has been doing this since day 1. I need to spend a day at the dealer with the Service Manager to show him what is happening. I now have a tune and it still does it.

I'm going to subscribe to see if you guys have any further info on this. I have gotten into the habit of doing this...After it sits for a while (30 - 40 minutes) I turn the key on for a couple seconds, turn it off, then start the engine. If I don't do this, it cranks without starting, then starts on the second attempt.

Jayrcr3 · 02-08-2013, 06:51 PM

You need a new tuner.

Sent from my HTC One X using Tapatalk 2

BullF-16 · 02-08-2013, 07:31 PM

Manny, at least it starts. Remember my issue.....at first start up in the morning it took up to 3 minutes to get fuel pressure to the regulator. I am running return style. No issues now, after beating on the car for numerous 12psi boost runs. it must have flushed the crap out of the regulator.

Your issue sounds like a tune issue. You still have the FPCM?. I remember in my research i learned that in the tune with the OE FPCM you can set the time in seconds for the pump to prime. I think normally its 2 sec but can also be set to 10 seconds. I just guessing here.....could be way off but it does seem to be tune related.

Remember i had one of the best LS tuners in the country....it turns out my whole ordeal with the P0606 code and reduced power mode was a change in the tune with the gas pedal position to throttle relationship. DSteck and Andy at Squash figured it out.

You might send your tune to Dave Steck at D S X tuning.com. This man is a genious. he will let you know. He is banned here on C5 which is a real shame!!!!!!!!

Good luck, but at least your car starts!

Alvin@PCMofNC · 02-08-2013, 08:09 PM

Its in the tune. Had a turbo car last week that was doing the same thing. Have your tuner check cranking airflow, cranking VE, and cranking spark. Give him a few days with it. I'm sure he will get it right.

MANNYS2SS/RS · 02-08-2013, 08:15 PM

Quote:

Originally Posted by BullF-16

Manny, at least it starts. Remember my issue.....At first start up in the morning it took up to 3 minutes to get fuel pressure to the regulator. I am running return style. No issues now, after beating on the car for numerous 12psi boost runs. It must have flushed the crap out of the regulator.

Your issue sounds like a tune issue. You still have the FPCM?. I remember in my research I learned that in the tune with the OE FPCM you can set the time in seconds for the pump to prime. I think normally its 2 sec but can also be set to 10 seconds. I just guessing here.....Could be way off but it does seem to be tune related.

Remember I had one of the best LS tuners in the country....It turns out my whole ordeal with the P0606 code and reduced power mode was a change in the tune with the gas pedal position to throttle relationship. DSteck and Andy at Squash figured it out.

You might send your tune to Dave Steck at D S X tuning.com. This man is a genious. he will let you know. He is banned here on C5 which is a real shame!!!!!!!!

Good luck, but at least your car starts!

Thanks Jim, I need to look into that. We thought it was an injector first so we changed them with no luck. Then we thought it was the ZL-1 fuel pump, so I installed the stock fuel pump back and drove it around for two weeks with the same result, thank god I made an access door. Disconnected the BAP & the Meth still no luck. I think something got corrupted when we down loaded the data for the ID-850.

02-08-2013, 04:19 PM	#3
MANNYS2SS/RS Drives: 2010 Camaro 2SS/RS,LS3 Join Date: Oct 2010 Location: South Florida Posts: 1,237	What injectors do you have? __________________ LS-3, ProCharger D1SC 665. rwhp /562. rwtq @ 9.3 psi

02-08-2013, 06:51 PM	#11
Jayrcr3 Drives: 2011 IOM 2SS/RS Join Date: Dec 2010 Location: Chatham, Illinois Posts: 756	You need a new tuner. Sent from my HTC One X using Tapatalk 2 __________________ American Racing 1 7/8" Headers and Hi-Flow Cats, CAI cold air intake, Flowmaster AT exhaust, Vengeance Racing Stage 2 cam, VMax ported throttle body, TEA valve springs and titanium retainers, Trick Flow hardened pushrods, 180* T-stat, Comp Trunion kit, ZL1 Fuel Pump, ADM Fuel Pump Control Module, 20% window tint, Whipple Supercharger. Tuned by Mike Norris Motorsports. 656rwhp/584rwtq @10 PSI.

02-08-2013, 07:31 PM	#12
BullF-16 USAF retired! Thank God! Drives: 2011 1SS, 1LT red,1LT/RS SGM 98Z28 Join Date: Jul 2011 Location: North Texas Posts: 2,799	Manny, at least it starts. Remember my issue.....at first start up in the morning it took up to 3 minutes to get fuel pressure to the regulator. I am running return style. No issues now, after beating on the car for numerous 12psi boost runs. it must have flushed the crap out of the regulator. Your issue sounds like a tune issue. You still have the FPCM?. I remember in my research i learned that in the tune with the OE FPCM you can set the time in seconds for the pump to prime. I think normally its 2 sec but can also be set to 10 seconds. I just guessing here.....could be way off but it does seem to be tune related. Remember i had one of the best LS tuners in the country....it turns out my whole ordeal with the P0606 code and reduced power mode was a change in the tune with the gas pedal position to throttle relationship. DSteck and Andy at Squash figured it out. You might send your tune to Dave Steck at D S X tuning.com. This man is a genious. he will let you know. He is banned here on C5 which is a real shame!!!!!!!! Good luck, but at least your car starts! __________________ HKE LSX427(Mast blk lbl 305 6bolt LS7heads, PatG231/246 blower cam, RWHP/TQ: 1281/1133 SNL Performance Custom Twin PT6766 BB turbos 4 to 25psi selectable on the Boost Leash controller, Squash dual 400LPH/ID2000s, ALKY 4 gal meth, Autometer AFR/Bst/oilpres/oiltemp/fuelpress gauges, Pedders Justice road crs pkg: All HD bushes, supercar 12kg coil overs, supercar ZL1 sways, camber plates all setup by JusticePete! :Gforce 9" 35spline S-Trac, 1500hp Outlaw axles, 3.5"alum DS, Monster Triple disc; 4xForgeline 19x10.5 4xBridgestone 305/30R19 RE-11, CTS-v calipers/rotors/Cobalt friction XR1/3 pads

02-08-2013, 04:17 PM	#2
SSKyle Drives: 2011 SS/RS Join Date: Apr 2011 Location: Kentucky Posts: 47	+1. My car does the exact same, but doesn't crank as long( maybe 1-4 cranks more than normal). I have the turbonetics kit with no cam.

02-08-2013, 04:24 PM	#4
SSKyle Drives: 2011 SS/RS Join Date: Apr 2011 Location: Kentucky Posts: 47	Stock ls3 Zl1pump I'd 850 Zr1 map Zr1 plugs 7 psi

02-08-2013, 05:02 PM	#6
2SSCAMARO Drives: 2010 Camaro Auto Join Date: Mar 2010 Location: Fl Posts: 1,164	Did you install a fuel pressure gage at the fuel rail and verify that you actually have proper fuel pressure while it is doing the longer than normal cranking?

02-08-2013, 05:09 PM	#7
BLK2SS Drives: Black 2SS Join Date: Oct 2009 Location: Westminster, MD Posts: 169	What was used to flash the tune? If it was HP Tuners try disconnecting the 3 plugs from the PCM and reconnecting. If that doesn't help, I would be looking at the tune.

02-08-2013, 05:57 PM	#8
K32 Camaro V8 lounge member #5 Drives: 12 2SS Synergy Camaro, 05 PontiacG6 Join Date: Dec 2011 Location: Ohio Posts: 1,301	Had the same problem on my pontiac after cats broke. AFR was off just enough to make it do that. Gotta be the tune.

02-08-2013, 06:35 PM	#10
dragon22 Drives: 2010 Camaro 2SS/RS SIM Join Date: Apr 2009 Location: Calgary, Alberta Posts: 1,697 View My Garage	I have a 2010 Camaro that has been doing this since day 1. I need to spend a day at the dealer with the Service Manager to show him what is happening. I now have a tune and it still does it. I'm going to subscribe to see if you guys have any further info on this. I have gotten into the habit of doing this...After it sits for a while (30 - 40 minutes) I turn the key on for a couple seconds, turn it off, then start the engine. If I don't do this, it cranks without starting, then starts on the second attempt.

02-08-2013, 08:09 PM	#13
Alvin@PCMofNC Drives: 2010 IOM RSS Join Date: May 2009 Location: Mooresville Posts: 363	Its in the tune. Had a turbo car last week that was doing the same thing. Have your tuner check cranking airflow, cranking VE, and cranking spark. Give him a few days with it. I'm sure he will get it right.