NPP; AFM Actuators; Wiring help

Reply Subscribe

Thread Tools

Search this Thread

Jun 17, 2018 | 08:17 PM

g8germany

Thread Starter

6th Gear

Joined: Jun 2018

Posts: 6

Likes: 0

NPP; AFM Actuators; Wiring help

Hello,

i have order two rear Muffler with afm Actuators.
Here I have read that this wiring would be right.

Pin
1:Ground
2:Ground
3:Feedback open
4:12V

Is that so correct?
If I wiring this so, the actuoator will just make a step about 2mm.
If I Pull pin 2 to ground and not and again. the motor will drive to open.

How can I Force the motor to drive to close?

Thanks for help

Jun 17, 2018 | 09:25 PM

falcon5619

Burning Brakes

Joined: Sep 2007

Posts: 1,048

Likes: 300

From: FL

What exactly are your trying to accomplish? Are you trying to add NPP exhaust to a model without NPP?

Jun 17, 2018 | 11:29 PM

FYREANT

I'm Batman..

Joined: Apr 2014

Posts: 6,142

Likes: 921

From: Lehigh Acres FL

Tech Contributor

Quote:

Originally Posted by g8germany

I don't believe you can accomplish what you are trying to do. The valves cannot be controlled by simply applying power and ground to the correct pins. The actuators require a VERY specific PWM (Pulse Width Modulation) signal to them to operate. If the signal it receives is outside of the expected parameters, it will freak out the actuator and lock itself open and will never reset itself, basically toasting the actuator entirely. If you want to add NPP to a non NPP C7, buy the controller kit from Akropovic. Its not cheap, but it does work.

Quote:

Originally Posted by falcon5619

What exactly are your trying to accomplish? Are you trying to add NPP exhaust to a model without NPP?

Sounds like it..

Last edited by FYREANT; Jun 17, 2018 at 11:30 PM.

Jun 18, 2018 | 02:52 AM

g8germany

Thread Starter

6th Gear

Joined: Jun 2018

Posts: 6

Likes: 0

Hy,

I try to run the AFM Valve.
I will fit the C7 Muffler with NPP under my Pontiac G8 with NPP.

Here is the Wiring Diagram what i have found
Here I have read that I just connect 4 Wirres LINK

What is now right.. Simple Ground or PWM signal to close the AFM.
Can somebody tell me what the right PWM frequenz..

Thanks

Jun 18, 2018 | 07:07 AM

FYREANT

I'm Batman..

Joined: Apr 2014

Posts: 6,142

Likes: 921

From: Lehigh Acres FL

Tech Contributor

Quote:

Originally Posted by g8germany

The AFM actuators are the same type of actuator as the NPP actuators. The below thread will have more info on a retrofit and I can assure there there are no other threads on the forum with more info than it lol. Theta, who previously did all the work to figure this out, has not been on the forum for some time so you cannot contact him.

https://www.corvetteforum.com/forums...-retrofit.html

Ant

Jun 21, 2018 | 07:53 PM

g8germany

Thread Starter

6th Gear

Joined: Jun 2018

Posts: 6

Likes: 0

Thanks for the fast help.
I have rebuild a Control with Arduino Mega and no C7 NPP Retrofit PCB. Just Some parts for around 10$ and Software

I have kill one Actuator at Rebuilding

If Somebody is selling one, I will buy it.

Thanks

Last edited by g8germany; Jun 21, 2018 at 08:14 PM.

Jun 21, 2018 | 08:28 PM

Higgs Boson

Race Director

Joined: Jul 2007

Posts: 10,961

Likes: 2,643

From: Texas Hill Country

just FYI, we have control of the C7 exhaust valves in HPTuners now. :-)

Jun 21, 2018 | 08:36 PM

g8germany

Thread Starter

6th Gear

Joined: Jun 2018

Posts: 6

Likes: 0

thanks but i build the c7 muffler under my pontiac g8,
I think this ECU doesn't support it

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Joe Kucinski

How Much Horsepower Every Corvette Engine "LOST" in 1972

Joe Kucinski

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Michael S. Palmer

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Joe Kucinski

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Joe Kucinski

8 Coolest Corvette Pace Cars (and Replicas) of All Time

Verdad Gallardo

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Joe Kucinski

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Verdad Gallardo

Top 10 Corvettes Coming to Mecum Indy 2026!

Brett Foote

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Michael S. Palmer

Jun 21, 2018 | 11:50 PM

FYREANT

I'm Batman..

Joined: Apr 2014

Posts: 6,142

Likes: 921

From: Lehigh Acres FL

Tech Contributor

Quote:

Originally Posted by Higgs Boson

just FYI, we have control of the C7 exhaust valves in HPTuners now. :-)

wait what? Did the version 4 upgrade add that or are you referring to the AFM valves? What can we control for NPP in HPT now?

Jun 23, 2018 | 09:01 PM

#10

Higgs Boson

Race Director

Joined: Jul 2007

Posts: 10,961

Likes: 2,643

From: Texas Hill Country

Quote:

Originally Posted by FYREANT

wait what? Did the version 4 upgrade add that or are you referring to the AFM valves? What can we control for NPP in HPT now?

everything. download the latest beta, you need to read out the chassis control module and license it.

Last edited by Higgs Boson; Jun 23, 2018 at 09:03 PM.

Jun 23, 2018 | 09:11 PM

#11

FYREANT

I'm Batman..

Joined: Apr 2014

Posts: 6,142

Likes: 921

From: Lehigh Acres FL

Tech Contributor

Quote:

Originally Posted by Higgs Boson

everything. download the latest beta, you need to read out the chassis control module and license it.

awesome. I already licensed the CCM when I did the AFM valve delete.

Nov 3, 2018 | 12:16 PM

#12

Steve_aleve

1st Gear

Joined: Nov 2018

Posts: 1

Likes: 0

Quote:

Originally Posted by g8germany

Thanks for the fast help.
I have rebuild a Control with Arduino Mega and no C7 NPP Retrofit PCB. Just Some parts for around 10$ and Software
YOUTUBE

I have kill one Actuator at Rebuilding

If Somebody is selling one, I will buy it.

Thanks

i have an actuator from the eco mode that I am not using that I think is the same. I am also trying to do what you did. Can you elaborate on the parts and software? Thanks!

Jul 8, 2020 | 05:02 PM

#13

Corvettes_Rule123

1st Gear

Joined: Jul 2020

Posts: 1

Likes: 0

@g8germany - That's awesome! Could you explain what parts you used with the Arduino to get this working? What signal did you end up feeding the device? Thanks in advance

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump