Truck coil grounding with Elite 1500

Questions about the Elite Series ECU's? Ask here.
Coupe 2020
Posts: 6
Joined: Tue Jan 09, 2018 6:02 am
Location: New Hampshire

Truck coil grounding with Elite 1500

Postby Coupe 2020 » Sun Jan 14, 2018 9:42 am

Hello, I am setting up D581 truck coils with my Elite 1500. These coils use 2 ground pins, one is listed as pcm ground the other as chassis ground. Should it be grounded: Option#1 to ecu sensor ground with the other to chassis/ engine block, Option#2 both to chassis/ engine block, or Option#3 both to ecu sensor ground ? After a lot of research I still cannot find a definitive answer and I want to get it right. Thank you

SONofSUN
Posts: 65
Joined: Mon Jan 27, 2014 4:32 am

Re: Truck coil grounding with Elite 1500

Postby SONofSUN » Sun Jan 14, 2018 10:42 pm

Coupe 2020 wrote:Hello, I am setting up D581 truck coils with my Elite 1500. These coils use 2 ground pins, one is listed as pcm ground the other as chassis ground. Should it be grounded: Option#1 to ecu sensor ground with the other to chassis/ engine block, Option#2 both to chassis/ engine block, or Option#3 both to ecu sensor ground ? After a lot of research I still cannot find a definitive answer and I want to get it right. Thank you


Option # 1

User avatar
HaltechMatthew
Haltech Staff
Posts: 2478
Joined: Tue Feb 07, 2012 11:45 am
Location: Sydney, Australia
Contact:

Re: Truck coil grounding with Elite 1500

Postby HaltechMatthew » Mon Jan 15, 2018 3:34 pm

I would put them all to the engine block, even though that is not what the manufacturer says. It ensures your coil doesn't become an engine ground strap should something go wrong.

TTengine
Posts: 2
Joined: Sat Nov 11, 2017 1:58 am

Re: Truck coil grounding with Elite 1500

Postby TTengine » Tue Jan 16, 2018 2:44 am

I have been running truck coils on my personal car for awhile, I followed Haltech advice and ran the grounds together to the body ground (fender mounted coils) and it has been working great for me.

ausjd2703
Posts: 48
Joined: Tue Apr 29, 2014 8:31 am

Re: Truck coil grounding with Elite 1500

Postby ausjd2703 » Tue Jan 16, 2018 9:51 am

when you say sensor ground do you mean black and white wiring that should never be earthed to the block or anything with elite series ecus.
or do you mean general ECU ground which is solid black wire? solid black wire yeah thats fine. should never touch the sensor grounds.

Coupe 2020
Posts: 6
Joined: Tue Jan 09, 2018 6:02 am
Location: New Hampshire

Re: Truck coil grounding with Elite 1500

Postby Coupe 2020 » Wed Jan 17, 2018 1:24 am

HaltechMatthew wrote:I would put them all to the engine block, even though that is not what the manufacturer says. It ensures your coil doesn't become an engine ground strap should something go wrong.


That was my original plan based on the Elite not using chassis/engine grounds for sensors and such. What caused doubt for me is GM grounding to the PCM as well as chassis/engine ground. As we all know OEMs sometimes do odd things. Thank you very much for confirming this, I appreciate it!


Return to “Elite Series”

Who is online

Users browsing this forum: No registered users and 6 guests