intimidated
April 25th, 2011, 01:45 AM
Hi all, first post here and hopefully some of you can help me out.
I'm at the planning stages of converting my '02 1500HD 6.0L 4l80E 4x4 from gas to a full mechanical injected Diesel.
I have pretty much everything figured out except a few details on how to control the 4L80E with the existing ECM/PCM. I'm not really interested in using an aftermarket standalone controller for the trans as the GM unit is much more programmable.
I have plans to transfer the original TPS, and ESS, over to the diesel for trans input as well as maintaining the original gauges.
I have few questions that hopefully someone can answer before i go ahead and purchase software.
- Can engine operation ie, injector duty, air-mass sensor, o2, etc be disabled while maintaining transmission function? I would like to avoid a dash full of lights and prevent any codes from affecting transmission operation.
- Is there a different method to control the line pressure on a 4L80E? I believe commanded pressure is a function of manifold pressure vs delivered torque. As I understand it, delivered torque is calculated from air-mass. The problem is that Diesel air-mass and MAP is not regulated like a gasser so air-mass rates are much higher at idle/part throttle which could/would result in high pressures all the time.
hopefully someone has some experience or input???
Thanks
Chris
I'm at the planning stages of converting my '02 1500HD 6.0L 4l80E 4x4 from gas to a full mechanical injected Diesel.
I have pretty much everything figured out except a few details on how to control the 4L80E with the existing ECM/PCM. I'm not really interested in using an aftermarket standalone controller for the trans as the GM unit is much more programmable.
I have plans to transfer the original TPS, and ESS, over to the diesel for trans input as well as maintaining the original gauges.
I have few questions that hopefully someone can answer before i go ahead and purchase software.
- Can engine operation ie, injector duty, air-mass sensor, o2, etc be disabled while maintaining transmission function? I would like to avoid a dash full of lights and prevent any codes from affecting transmission operation.
- Is there a different method to control the line pressure on a 4L80E? I believe commanded pressure is a function of manifold pressure vs delivered torque. As I understand it, delivered torque is calculated from air-mass. The problem is that Diesel air-mass and MAP is not regulated like a gasser so air-mass rates are much higher at idle/part throttle which could/would result in high pressures all the time.
hopefully someone has some experience or input???
Thanks
Chris