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04-13-2025, 05:59 PM
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#1 |
 Drives: 2019 ZLE sold now 2021 ZLE Join Date: Aug 2019
Location: FL
Posts: 125
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does anyone know what this is?
i just bought a new to me 2021 ZLE and i dont know what this is? i think its aftermarket cuz my 2019 ZLE didnt have one idt?
when i pushed the button the fuel pump kicked on for about 5 seconds, so im thinking its a fuel pump relay?? |
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04-13-2025, 06:02 PM
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#2 |
 Drives: 2024 Camaro 1SS M6 Join Date: Nov 2023
Location: Western NY
Posts: 242
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Kill switch for fuel pump?
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04-14-2025, 10:52 AM
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#3 |
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Drives: 2019 ZLE sold now 2021 ZLE Join Date: Aug 2019
Location: FL
Posts: 125
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i dont think it is a kill switch cuz the fuel pump started not stopped?
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04-14-2025, 12:19 PM
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#4 |
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Sarcasm loading --------
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fuel pump voltage booster?
__________________
"The salesman actually told me to stop getting it sideways during the test drive"
2018 MBM ZL1 1LE - 652 rwhp, 588 rwtq SAE 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD |
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04-14-2025, 02:02 PM
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#5 |
            
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 13,150
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Looks like some aftermarket security device. Most likely not a voltage booster, those look different and are much larger with beefy cooling fins.
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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04-15-2025, 06:00 PM
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#6 |
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Drives: 2019 ZLE sold now 2021 ZLE Join Date: Aug 2019
Location: FL
Posts: 125
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here's a couple more pics, when i push the middle button the fuel pump kicks on and the blue light comes on and it stops when the fuel pump reaches full pressure, is what it sounds like, i followed the wires to behind the dash near the obd2 port but im to big to get under there and see what it goes to. i do have a P3 gauge there also but i didnt see anything on their site that looks like it.
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04-15-2025, 06:51 PM
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#7 |
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Served USN - Atomic Chimp
Drives: 2021 Camaro ZL1 1LE A10 (stock) Join Date: Jul 2012
Location: Fort Collins, CO
Posts: 1,708
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Fuel system priming circuit? You have aftermarket fuel pumps in the tank that maybe don't have a check valve in them so they bleed down if car sits there for awhile?
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>
> 2021 Camaro ZL1 1LE A10 > > Past Builds: 2013 Twin-Turbo LSX434 M6 - 1,359rwhp daily |
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04-16-2025, 05:41 PM
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#8 | |
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Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,558
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Quote:
What do LED's do when car is running? I'll guess: White is "Ignition on" Green is "pump energized" Blue is test button. This look like it might be a custom module. A PCB kit with a semi-custom mounting box. |
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04-17-2025, 08:47 AM
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#9 |
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Sarcasm loading --------
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Low side aux pump controller?
__________________
"The salesman actually told me to stop getting it sideways during the test drive"
2018 MBM ZL1 1LE - 652 rwhp, 588 rwtq SAE 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD |
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04-17-2025, 09:13 AM
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#10 | |
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Drives: 2024 Camaro 1SS M6 Join Date: Nov 2023
Location: Western NY
Posts: 242
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Quote:
Just out of curiosity, what would the benefit of this type of modification be? My car is stock, but I'm definitely trying to learn more about cars since most shadetree mechanic stuff I've done is limited to basic mechanical and maintenance (brakes, oil, O2 sensors, etc ) |
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04-17-2025, 09:16 AM
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#11 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 7,561
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Looks like a low side pump controller for an Aux pump setup. Crawl under the car and check to see if the fuel tank has been tapped.
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 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel |
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04-20-2025, 11:26 AM
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#12 | |
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Drives: 2019 ZLE sold now 2021 ZLE Join Date: Aug 2019
Location: FL
Posts: 125
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Quote:
one of the wires goes to the DSX sensor as well (it was hard to trace). So what we be the need for this? there is already one in the tank plus the high pressure pump. (I dont like seeing my tank tapped like that cuz its a spot for future failure, gas leak. next step is to see where the fuel line taps in? I saw a youtube video on how to tap and install in fuel tank and they put some kind of sealer around the fitting, does anyone know what sealer you would put around a fuel tank tap? i need to reseal it and i dont want to use JB weld but i cant think of what would be best? |
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04-20-2025, 12:05 PM
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#13 |
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Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 5,156
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DSX and the green goo
 Drill-n-tap through what is not more than 1 to 1-1/2 threads thick curved bit of fuel tank seems like a bad idea to me. Any flex at all and it'll try to open itself up. If that's DSX standard procedure (I saw the video with the green goo), then the green goo should be included in the DSX kit. Yep, there it is. Might be this one but there is no picture, so you might want to give them a call (314) 396-7333 to confirm as well as ask them for advice on how to address the leak (be it just with sealant, or if they have some other solution). |
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04-20-2025, 06:03 PM
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#14 |
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Drives: 2019 ZLE sold now 2021 ZLE Join Date: Aug 2019
Location: FL
Posts: 125
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thx for your help and i will call DSX, i don't see the relay that started this post on their website? maybe its an old design or someone added to the system?
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