Missing injector data - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

joshnmn · 01-09-2021, 02:25 PM

I’ve asked a few of you this privately, but it’s wearing me out so I’m asking everyone now.

I just finished a Huron turbo build with big fuel system and injectors. When I scan it with hptuners my injector duty cycle is non existent. I have already repolled and no luck. Has anyone ever seen this before?

I did have to reland some ground wires during the process. That’s about the only electrical change I’ve made. Well, at least near the injectors.

Ideas?

dreksnot · 01-10-2021, 11:48 AM

Are you talking at idle or when other times?

joshnmn · 01-10-2021, 05:02 PM

I’ve only idled so far. Just trying to get it up on a trailer for a proper tune

dreksnot · 01-10-2021, 07:09 PM

At idle, those big injectors are only going to read about 0.25 to 0.50 ms and a 0% duty cycle.

joshnmn · 01-10-2021, 09:29 PM

So would a 0% be blank on a log? There’s no line or value shown.

dreksnot · 01-11-2021, 10:44 AM

This is mine at 800rpm idle

joshnmn · 01-11-2021, 03:43 PM

Got it figured out. I think I inadvertently removed inj avg pulse width from the channels list so hpt couldn’t do the math. Now it looks like yours. Thanks for your help!

01-09-2021, 02:25 PM	#1
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,012 View My Garage	Missing injector data I’ve asked a few of you this privately, but it’s wearing me out so I’m asking everyone now. I just finished a Huron turbo build with big fuel system and injectors. When I scan it with hptuners my injector duty cycle is non existent. I have already repolled and no luck. Has anyone ever seen this before? I did have to reland some ground wires during the process. That’s about the only electrical change I’ve made. Well, at least near the injectors. Ideas?

01-10-2021, 11:48 AM	#2
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,603 View My Garage	Are you talking at idle or when other times? __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

01-10-2021, 07:09 PM	#4
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,603 View My Garage	At idle, those big injectors are only going to read about 0.25 to 0.50 ms and a 0% duty cycle. __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

01-11-2021, 10:44 AM	#6
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,603 View My Garage	This is mine at 800rpm idle Attached Images __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

01-10-2021, 05:02 PM	#3
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,012 View My Garage	I’ve only idled so far. Just trying to get it up on a trailer for a proper tune

01-10-2021, 09:29 PM	#5
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,012 View My Garage	So would a 0% be blank on a log? There’s no line or value shown.

01-11-2021, 03:43 PM	#7
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,012 View My Garage	Got it figured out. I think I inadvertently removed inj avg pulse width from the channels list so hpt couldn’t do the math. Now it looks like yours. Thanks for your help!