03-04-2017, 11:54 PM | #1 |
4Harambe
Drives: 2016 Camaro 2SS 6Speed Join Date: Sep 2014
Location: Goldsboro, NC, USA
Posts: 19
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Issues to causing "Limp Mode"?
** I just realized I accidentally posted this in the V6 forum, sorry.... **
So I installed Kooks long tube headers (with non-catted pipes), and I noticed these things so far since the install... 1) When cold-starting, the exhaust makes an awful vibrating noise that sounds super raspy. I could only assume that because there are no cats, that the air pressure is causing the NPP valve at the end of the outside tips to vibrate more, causing the nasty, raspy rattle sound. Has anyone had anything similar to this? 2) When I step hard on the gas to give it some good amount of "go", I don't experience any issues. When I want to make a nice little U-Turn, or make any sharp turn, and attempt to give it some good amount of gas to "assist" me in the turn, it goes into "limp mode", and the nice little service engine light comes on. Could the difference in air flow, plus the quick turning radius cause something like this?? 3) During a cold start, I notice that the engine makes a puffing sound every like 4 or 5 seconds, sometimes in fewer intervals. I do know that all of this could be solved with a quick tune. I do plan on bringing it to a shop soon to have it dyno-tuned, but I wanted to go ahead and buy an aftermarket air intake first, and if buying cats is the only way to make that awful rattling from a cold start go away, then I will do this before tuning as well. Although I may have given the remedy already (by acknowledging that I need to tune it), the only reason I want to kind of expand on these issues is so I have future knowledge on it, on the chance friends of mine have similar issues, and just for gee-whiz, I guess.
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Last edited by Jin; 03-05-2017 at 12:13 AM. |
01-19-2019, 02:59 PM | #2 |
Drives: ‘16 2SS Join Date: Aug 2018
Location: Arlington Texas
Posts: 24
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Did you ever get this issue resolved?
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01-19-2019, 03:40 PM | #3 |
Drives: 2017 2SS M6 Join Date: Jun 2013
Location: WNY
Posts: 7,071
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no it shouldn't go into limp mode with headers. something got hooked up wrong ,loose or burnt. check your plug wires. may be burnt. did you move the wiring below the coolant overflow tank as far over as it could go? should wrap it in heat shield tape too. may have cracked a plug if you didnt take them out during install.
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real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1
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01-19-2019, 03:40 PM | #4 |
Drives: 2017 2SS M6 Join Date: Jun 2013
Location: WNY
Posts: 7,071
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3-5-2017 hes gone hasnt posted sense
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real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1
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01-20-2019, 12:35 PM | #5 | |
Drives: ‘16 2SS Join Date: Aug 2018
Location: Arlington Texas
Posts: 24
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Quote:
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01-20-2019, 01:51 PM | #6 |
Drives: 6th gen Join Date: Aug 2013
Location: US
Posts: 3,670
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Turning left makes the engine shift toward the passenger side and the harness jc was talking about....
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‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122
‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold) |
01-20-2019, 02:53 PM | #7 |
Drives: 2017 2SS M6 Join Date: Jun 2013
Location: WNY
Posts: 7,071
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ya check for burn harness befor next start. it needs to be as close to the fender as possible. id rap it with heat tape to like in my pic. its the bottom one i have zip tied to the fender.
https://shop.advanceautoparts.com/p/...Term=heat+tape
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real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1
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01-20-2019, 04:23 PM | #8 | |
Drives: ‘16 2SS Join Date: Aug 2018
Location: Arlington Texas
Posts: 24
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Quote:
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01-20-2019, 04:37 PM | #9 |
Drives: 2017 2SS M6 Join Date: Jun 2013
Location: WNY
Posts: 7,071
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ooo your going to have to do some wiring. disconnect your battery now. your going to have to fix every burnt wire. solder shrink tubing not crimp connectors. if your not good a soldering find someone that is very good at it. you dont want added resistance.
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real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1
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