GEN IV swap AFM is not enabled

[nycblazer]

Hello everyone

this is great stuff. good thing i waited 1 year. now i feel like leaving the AFM in my engine, i was about to eliminate it. thought i was alone. even got rid of my efilive fs now i'm gonna have to purchase another one. back then i asked a few Q's of VVT & it was like no one was listening to me. so it is possible to activate the AFM. how about the DOD.
i installed a 2007 6.2L VVT engine with AFM, & DOD into my 1999 s10 blazer mated to a T56 Viper spec tranny. would this work if i have a 6 speed manual or it only works for the automatic trannys...

[harascho]

ActiveFuelManagement and DisplacementOnDemand are just two expressions for the same thing, a cutoff of 4 cylinders in a V8 under special light load conditions.

Harald

[nycblazer]

ohh ok so i have VVT and AFM thanks just learned that lol

[GMPX]

I am working on adding in a number of new PID's for the scantool that show the state of the AFM enable / disable flags, I think this will really help track down why for some people it doesn't work, especially for conversions.

Cheers,
Ross

[VEGASROBBI]

Thanks

[harascho]

I am working on adding in a number of new PID's for the scantool that show the state of the AFM enable / disable flags, I think this will really help track down why for some people it doesn't work, especially for conversions.

Thanks for that help Ross, I hope you also thought about a way to enable/disable some of those conditions to make AFM work on conversions..

Harald

[GMPX]

I hope you also thought about a way to enable/disable some of those conditions to make AFM work on conversions.

Well, lets see where the problem is first , there was a LOT of flags in the PID's to show why the AFM was disabled (see below). I would suspect some are calibrations that can be changed, but some might be hard coded in to the OS.

Cheers,
Ross

4WD Low On
4WD State Invalid
A/C About To Engage
AFM / DOD Solenoid Driver Fault
AFM / DOD Circuit Fault
Accelerator Pedal Position Delta High
Accelerator Pedal Position Too High
All Cylinders Activated By Scan Tool
Axle Torque Limiting
Brake Torque Management
Brake Vacuum Pressure Sensor Fault
Brake Vacuum Pressure Too Low
Cam Sensor Fault
Catalyst Over Temperature Protection
Coolant Temperature Not In Range
Coolant Too Hot
Crank Sensor Fault
Decel Fuel Cutoff Active
ETC Error
ETC Tip In Active
Electronic Throttle Control Reduced Power
Engine Coolant Temperature Sensor Fault
Engine Metal Over Temperature Protection
Engine Misfire Detected
Engine Oil Pressure Not In Range
Engine Oil Pressure Sensor Fault
Engine Oil Temperature Not In Range
Engine Overspeed Protection
Engine RPM Not In Range
Engine Torque Inaccurate
Ethanol Content Learning
Fuel Shut Off Stability Timer Active
Heater Fast Warm Up Active
High Ethanol Content
Ignition Voltage Not In Range
Intake Air Temperature Sensor Fault
Low Catalyst Temperature
Manifold Absolute Pressure Sensor Fault
Manifold Vacuum Pressure Too Low
Max Deactivation Time Exceeded
Min Time With All Cylinders On Not Met
Oil Aeration
Piston Protection
Powertrain Relay Fault
Read O2 Test Active
Trans Gear Incorrect
Trans Gear Shift In Progress
Trans Range Incorrect
Vehicle Speed Fault
Vehicle Speed Low

[nycblazer]

Can I ask a question a Quick Question... Will the AFM also work for a 6 speed manual transmission or does it only work on automatic transmissions?

I hope it works.

[GMPX]

Based on these three criteria, no it won't work.

Trans Gear Incorrect
Trans Gear Shift In Progress
Trans Range Incorrect

Cheers,
Ross

[ringram]

Maybe a "skip all AFM checks" patch would help M6 users and others, though could cause problems elsewhere I guess especially if oil pressure is too low etc.