JMS FuelMax installed - Page 7

KingLT1 · 05-04-2023, 09:20 AM

These cars utilize a PWM pump that is controlled by a computer module (CCM/FSCM). The JMS doesn't send voltage directly to the pump. So you don't want more than 17.3 volts going to the module because it will cause it to freak out.

BunnyBoy · 05-04-2023, 10:10 AM

Quote:

Originally Posted by big dave

This was a great thread and really helped alot with my installation. My only problem is I cant get the voltage to move during setup process. I've read the Janetty instructions, and even contacted JMS, but still no success. The voltage maxes out at 17.6 at wot.

I had this SAME issue the other day. I had to mess with dip switch one. It was almost like on was off and off was on. I did it opposite then did it the right way and it finally took. It was VERY weird and I spent like 2-3 hours trying to configure. I was extremely angry.

Working with Ted now on remote tuning and going to the E phase. Hopefully the JMS doesn't let me down and lose its brains.

clg82 · 05-04-2023, 10:12 AM

interesting read, looking into doing this again to get away from my fuel additive

ShockingZ · 05-04-2023, 10:32 AM

Quote:

Originally Posted by BunnyBoy

I had this SAME issue the other day. I had to mess with dip switch one. It was almost like on was off and off was on. I did it opposite then did it the right way and it finally took. It was VERY weird and I spent like 2-3 hours trying to configure. I was extremely angry.

Working with Ted now on remote tuning and going to the E phase. Hopefully the JMS doesn't let me down and lose its brains.

Isnt that about right? 17.3 or something. Are you saying you are going too high with voltage? And Ted's directions are crap. Configuring the JMS is a huge pain in the ass.

But once its correct, it will help a ton. on 93 only my low side was dropping to high 50s PSI. And once the JMS went in, it was rock steady all the way even with E blend.

BunnyBoy · 05-04-2023, 11:18 AM

Quote:

Originally Posted by big dave

This was a great thread and really helped alot with my installation. My only problem is I cant get the voltage to move during setup process. I've read the Janetty instructions, and even contacted JMS, but still no success. The voltage maxes out at 17.6 at wot.

Quote:

Originally Posted by ShockingZ

Isnt that about right? 17.3 or something. Are you saying you are going too high with voltage? And Ted's directions are crap. Configuring the JMS is a huge pain in the ass.

But once its correct, it will help a ton. on 93 only my low side was dropping to high 50s PSI. And once the JMS went in, it was rock steady all the way even with E blend.

I should clarify. I could not get my JMS to even change the voltage till I messed with it. I forget what it was stuck at. Once I got the voltage to finally allow me to change it, it took a bit for it to accept my settings.

ZL1...SON · 05-04-2023, 05:12 PM

How long is it taking to install these and get them set up? I've got one sitting in the box so just curious how much time I need to set aside to get it done.

LiqTenExp · 05-04-2023, 08:33 PM

look at page 8 on here: https://www.jmschip.com/content/Powe...al_v11_WEB.pdf

big dave · 05-05-2023, 03:53 PM

I must be missing parts from my JMS setup. I keep seeing a reference to a Grey and a white wire that you can ground during the setup process. I don't have these wires.

Bangkok_ZL1 · 10-31-2023, 05:04 AM

Quote:

Originally Posted by LiqTenExp

Would like to say thanks to TMS and XXX ZL1 for helping out with some details from their installs, I tried to make this as clean as possible. The following threads contain all the details you will need, I have some additional photos in mine, all 3 should be more than enough. This was done as a "no cut" installation, see parts list below.[/LIST]

And would like to thank you for your post. I followed it exactly. And it worked out nice. I did a few additional things (spliced the white line to tap in a voltmeter (which is detachable, and spliced the black and grey lines slightly down the loom so i can use the black to feed the voltmeter. and using the grey as a power line from the fuse box to power the AEM Air Fuel meter. Also using that loom to run two small lines. Thanks once again. I even ordered from Mouser international. Shipping was 50 times the price of the connectors. Awesome instructions.

LiqTenExp · 10-31-2023, 05:49 AM

Glad it worked out. Mine is still humming away 3+ years later.

ZLE dude · 10-31-2023, 08:54 AM

Quote:

Originally Posted by LiqTenExp

Glad it worked out. Mine is still humming away 3+ years later.

Same here. I've put nearly 40K miles on my setup and haven't had a single hiccup. This thread is solid gold for an E85 setup utilizing the JMS booster.

2023_ZL1-AUTO · 10-31-2023, 09:40 AM

Quote:

Originally Posted by big dave

I must be missing parts from my JMS setup. I keep seeing a reference to a Grey and a white wire that you can ground during the setup process. I don't have these wires.

Grey and white are connected to the JMS unit in trunk... I just did this mod to my 2023 ZL1 and I'm running E60 with no issues! Ted at JRE was instrumental in my success with the JMS and Flex Fuel portion of my mods! He did a great job tuning for Flex afterwards as well.

My Flex Fuel and JMS install starts at post #213
https://www.camaro6.com/forums/showt...611982&page=16

JANNETTYRACING · 10-31-2023, 09:42 AM

Quote:

Originally Posted by 2023_ZL1-AUTO

Grey and white are connected to the JMS unit in trunk... I just did this mod to my 2023 ZL1 and I'm running E60 with no issues! Ted at JRE was instrumental in my success with the JMS and Flex Fuel portion of my mods! He did a great job tuning for Flex afterwards as well.

My Flex Fuel and JMS install starts at post #213
https://www.camaro6.com/forums/showt...611982&page=16

Thank you for your business, and Thank you for choosing JRE to be part of your build.

Ted.

JANNETTYRACING · 10-31-2023, 09:45 AM

Quote:

Originally Posted by big dave

I must be missing parts from my JMS setup. I keep seeing a reference to a Grey and a white wire that you can ground during the setup process. I don't have these wires.

If you purchased it from us give us a call and we will get you squared away.

It is part of the Throttle harness at the Gas pedal connectors.

05-04-2023, 09:20 AM	#85
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,792	These cars utilize a PWM pump that is controlled by a computer module (CCM/FSCM). The JMS doesn't send voltage directly to the pump. So you don't want more than 17.3 volts going to the module because it will cause it to freak out. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

05-04-2023, 10:12 AM	#87
clg82 Drives: 2020 Camaro ZL1 Join Date: Oct 2020 Location: Fort Worth, Texas Posts: 1,133	interesting read, looking into doing this again to get away from my fuel additive __________________ 2020 ZL1 A10 Shadow Gray Metallic Magnuson Magnum DI TVS2650R\| Mamo Throttle Body V2\| RotoFab Intake\| Borla S-Type Catback Exhaust\| TCM Tune\| Tune\| Eibach Pro\| BMR Rear Cradle Lockout\| PPF\| Ceramic\| BCForged HCS21

05-04-2023, 05:12 PM	#90
ZL1...SON Drives: 2021 Camaro ZL1 Join Date: Mar 2023 Location: NW Arkansas Posts: 39	How long is it taking to install these and get them set up? I've got one sitting in the box so just curious how much time I need to set aside to get it done. __________________ 2021 Camaro ZL1 Satin Steel Metallic Rotofab CAI, Banks Idash, AEM X series wideband, CSP 2" headers, Jet hot 2500 ceramic coating, DSX Flex Fuel Sensor, DMS Fender Tank, Velossatech Big Mouth, JMS Fuel Booster, MPI Billet Lid, Jokerz race port, 2.30" upper, 107mm Soler TB, 160°F Billet DMS, Big Gulp, LPE Big Bore HPFP, XDI +30, ECM & TCM tuned by Elite Tuned, Atturo 315 AZ850DR

05-04-2023, 08:33 PM	#91
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	look at page 8 on here: https://www.jmschip.com/content/Powe...al_v11_WEB.pdf __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

05-05-2023, 03:53 PM	#92
big dave Drives: 2017 ZL1 Join Date: Aug 2009 Location: Maryland Posts: 1,052	I must be missing parts from my JMS setup. I keep seeing a reference to a Grey and a white wire that you can ground during the setup process. I don't have these wires. __________________ '17 ZL1 10.99@129 stock. 4225# raceweight. Best 60'- 1.66 on factory tires. 10.48@132 E50, intake and tune. 4270 lbs https://youtu.be/EyHtdH9XOkY https://youtu.be/Lcu41obbTf8 '13 ZL1 BRM A6. 11.591 @ 119.2 factory stock with a 1.68 60'! Best stock mph 121.8. 11.29 @ 123 RotoFab, drag radials and skinnies. 4360# raceweight. http://youtu.be/yggIA3C_kkA 2014... back to stock http://youtu.be/spQLaTWbThs 2013... stock & RotoFab

10-31-2023, 05:49 AM	#94
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	Glad it worked out. Mine is still humming away 3+ years later. __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

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