VY PCM - 16269238

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
User avatar
VL400
Posts: 4991
Joined: Sun Mar 01, 2009 2:54 pm
cars: VL Calais and Toyota Landcruiser. Plus some toys :)
Location: Perth, WA
Contact:

Re: VY PCM - 16269238

Post by VL400 »

Good to hear mate, thats a huge difference!!
ejukated
Posts: 443
Joined: Wed Mar 04, 2009 8:52 pm

Re: VY PCM - 16269238

Post by ejukated »

anyone know where the EGR DTC and CEL options are? I'd like to do away with all the EGR hardware in a transplant
User avatar
darcy
Posts: 120
Joined: Fri May 22, 2009 10:28 am

Re: VY PCM - 16269238

Post by darcy »

Can anyone point me in the direction of lean cruise?

My sedan happy cruises @ 16.3 in lean cruise, however squeezing the throttle to accellerate AFR goe UP to 17:1

1700RPM, 26% Throttle, 360mgc, 16.3:1
1750RPM, 34% Throttle, 430mcg, 17.0:1

This results in a flat spot on accelleration, untill you give enough throttle to unlock converter then kick down.

I don't think envoking PE mode is neccessary, or ideal, but would liek to see whats going on with Lean Cruise target AFRs here.

Cheers
darcy
Attachments
LOG.JPG
LOG.JPG (82.51 KiB) Viewed 7978 times
mattyc
Posts: 54
Joined: Fri May 21, 2010 8:26 pm

Re: VY PCM - 16269238

Post by mattyc »

where do i download the OSE Enhanced V1.15. software from?

i cant seem to be able to find it, i have got a couple of spare vx/vy ecu's laying around and also got a couple of vx's to play with

cheers
User avatar
antus
Site Admin
Posts: 8237
Joined: Sat Feb 28, 2009 8:34 pm
cars: TX Gemini 2L Twincam
TX Gemini SR20 18psi
Datsun 1200 Ute
Subaru Blitzen '06 EZ30 4th gen, 3.0R Spec B
Contact:

Re: VY PCM - 16269238

Post by antus »

Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
User avatar
The1
Posts: 4694
Joined: Mon Jan 04, 2010 10:23 am

Re: VY PCM - 16269238

Post by The1 »

i had the same flat spot with my vs, i ended up cutting the top end of the table down in the lean cruise afr CYLAIR vs RPM, not sure if you have access to this or not.
User avatar
darcy
Posts: 120
Joined: Fri May 22, 2009 10:28 am

Re: VY PCM - 16269238

Post by darcy »

The1 wrote:i had the same flat spot with my vs, i ended up cutting the top end of the table down in the lean cruise afr CYLAIR vs RPM, not sure if you have access to this or not.

That's where I was heading, however I haven't been able to (with my wealth of inexperience) locate this table.

Also, does anyone insight into Torque Management in these?
Any resonable increase in TPS at any time appears to result in Timing being pulled instantly then ramping back in, which severly hampers the responsivness.
User avatar
antus
Site Admin
Posts: 8237
Joined: Sat Feb 28, 2009 8:34 pm
cars: TX Gemini 2L Twincam
TX Gemini SR20 18psi
Datsun 1200 Ute
Subaru Blitzen '06 EZ30 4th gen, 3.0R Spec B
Contact:

Re: VY PCM - 16269238

Post by antus »

Ive located for the vy s/c DLTK bin offset 0x44D5 contains the RPM after which torque control will be active (RPM=X*25). So 36*25= torque control only after 900 RPM. Make this 255 to set it to 6365 RPM and it should disable it for normal engine use. Be warned though that torque control is a complex beast on the late models and I havnt got my head around all of it. It may do unexpected things. Try this at your own risk in a safe environment.
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
User avatar
darcy
Posts: 120
Joined: Fri May 22, 2009 10:28 am

Re: VY PCM - 16269238

Post by darcy »

antus wrote:Ive located for the vy s/c DLTK bin offset 0x44D5 contains the RPM after which torque control will be active (RPM=X*25). So 36*25= torque control only after 900 RPM. Make this 255 to set it to 6365 RPM and it should disable it for normal engine use. Be warned though that torque control is a complex beast on the late models and I havnt got my head around all of it. It may do unexpected things. Try this at your own risk in a safe environment.
Hey ant,

Sounds like somethign worth a try.
Any possibility of you pointing me in the direction of the pesky little constant in the $06 NON-S/C code?

darcy
User avatar
VL400
Posts: 4991
Joined: Sun Mar 01, 2009 2:54 pm
cars: VL Calais and Toyota Landcruiser. Plus some toys :)
Location: Perth, WA
Contact:

Re: VY PCM - 16269238

Post by VL400 »

I think 0x44D5 is actually for traction control torque reduction. As antus mentioned, the torque reduction code is stupidly complex so can be hard to work out whats what. Will try and see what I can find too. Might be a case of just trying things.

Lean cruise AFR offset table is in a few places depending on the mask - in DKDC its at 0x7610, DSZT at 0x76AE and DTCF at 0x7677. Table is 15 columns (airflow) and 10 rows (RPM)
Post Reply