Sequential injection

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
User avatar
antus
Site Admin
Posts: 10014
Joined: Sat Feb 28, 2009 10:34 am
cars: TX Gemini 2L Twincam 8psi
TX Gemini SR20 18psi
Datsun 1200 Ute
Subaru Blitzen '06 EZ30 4th gen, 3.0R Spec B
Subaru WRX 2007

Re: Sequential injection

Post by antus »

Ive got a 16233396 in front of me, and theres nothing significant missing. I dont have a 16234531 to compare and I cant find any pics of the PCB. I know The1 has spent countless hours developing software for the MAF PCMs and running bench hardware so I would assume hes right. Does anyone have any pics of a 16234531 circuit board to compare? The1, are you sure about the v6 pcm running the v8 including being able to drive 8 physical injectors? I assume if it was short 2 drivers because they were so similar in that era it'd run the code on the bench and not be a problem 'till it was in a car.
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
jezza351
Posts: 116
Joined: Fri May 22, 2009 8:49 am
cars: vr ss comodooree

Re: Sequential injection

Post by jezza351 »

antus wrote:Ive got a 16233396 in front of me, and theres nothing significant missing. I dont have a 16234531 to compare and I cant find any pics of the PCB. I know The1 has spent countless hours developing software for the MAF PCMs and running bench hardware so I would assume hes right. Does anyone have any pics of a 16234531 circuit board to compare? The1, are you sure about the v6 pcm running the v8 including being able to drive 8 physical injectors? I assume if it was short 2 drivers because they were so similar in that era it'd run the code on the bench and not be a problem 'till it was in a car.
I have one in the shed , I'll take it apart and take a few pics
MAGP
Posts: 665
Joined: Tue May 10, 2016 7:48 am
cars: VC V8 sedan, VS V6 wagon, VT V8 Landcruiser.

Re: Sequential injection

Post by MAGP »

This is a really good thing, 531 PCMs can be quite expensive sometimes depending on availability at the time so being able to use a 396 would be very helpful in cases where engines swaps have a wiring loom but not a PCM.
jezza351
Posts: 116
Joined: Fri May 22, 2009 8:49 am
cars: vr ss comodooree

Re: Sequential injection

Post by jezza351 »

Hopefully they will do :thumbup:
You do not have the required permissions to view the files attached to this post.
User avatar
antus
Site Admin
Posts: 10014
Joined: Sat Feb 28, 2009 10:34 am
cars: TX Gemini 2L Twincam 8psi
TX Gemini SR20 18psi
Datsun 1200 Ute
Subaru Blitzen '06 EZ30 4th gen, 3.0R Spec B
Subaru WRX 2007

Re: Sequential injection

Post by antus »

I dont see any major differences from a quick look, same IC count. Different placement of the SMD components in bottom right, more components in place on the v6 (v8 has 2 less). Not sure what they do. Would be good to try it.

Excuse the dust, this ones been in a stack of pcms for a while with no lid!
You do not have the required permissions to view the files attached to this post.
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
yoda69
Posts: 1226
Joined: Sun Mar 15, 2009 12:20 am
cars: 2004 VYII Acclaim Wagon V6 Auto LPG/Petrol
2004 VYII Berlina sedan V6 Auto
2005 VZ Monaro CV8 manual
Location: Geelong, VIC

Re: Sequential injection

Post by yoda69 »

I would have also thought with the knock board removed from the memcal and hardware now in the ECU they would be "tuned" for a V6 or V8 as per the old knock boards.
I have ran code on the bench in the past and appears to run ok, but like most others have assumed it's a couple of injector drivers short.
If they were identical I'm sure they would have had the same service number, just a matter of whether the differences are something that can be compromised/catered for in the tune.
User avatar
antus
Site Admin
Posts: 10014
Joined: Sat Feb 28, 2009 10:34 am
cars: TX Gemini 2L Twincam 8psi
TX Gemini SR20 18psi
Datsun 1200 Ute
Subaru Blitzen '06 EZ30 4th gen, 3.0R Spec B
Subaru WRX 2007

Re: Sequential injection

Post by antus »

If that is the case it might just be a case of removing those 2 components. Anyone want to send me a vt v8 to test with? :) (jokes)
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
jezza351
Posts: 116
Joined: Fri May 22, 2009 8:49 am
cars: vr ss comodooree

Re: Sequential injection

Post by jezza351 »

antus wrote:If that is the case it might just be a case of removing those 2 components. Anyone want to send me a vt v8 to test with? :) (jokes)
You can have the one I pictured if you want , I have no use for it and has been in my collection for a long time
User avatar
The1
Posts: 4852
Joined: Mon Jan 04, 2010 12:23 am

Re: Sequential injection

Post by The1 »

Have had V6 ones in V8 cars and run the same, def running all 8 injectors, knock responds the same, I've compaired boards like above but found nothing major different, the V6 and V6 s/c are also the same but n/a is missing the fuel pump speed control, I'm not sure about flash pcms as none are used in V8 anyway, happy to be proven wrong.
Dylan
Posts: 3364
Joined: Mon Aug 02, 2010 8:35 am
cars: VR Commodore V8

Re: Sequential injection

Post by Dylan »

Very interesting thanks