ECU schamatics

[byrd202]

I've been searching for ECU schematics for the Delphi Delco 16198262 for possible modification. Any help or a point in the right direction would be appreciated.

[antus]

I cant help with schematics, but what do you want to modify? If its not terribly complex we might be able to point you in the right direction.

[byrd202]

Im looking for spare I/O ports that are not used, that i might be able to program to expand functionality. (possible uses like nitrous injector control, or blow-off control)

[antus]

I think I found you some schematics:

http://wiki.3400z24.com/16198262

Since its a P4 ecm, you could probably save your self a lot of time and work running an '808 or a '165 (can find 808s as VN or VP commodore ecus ebay.com.au) and import one of them. They are reasonably cheap and we have done all the hard yards for you - you can run OSE12P and then have a couple of extra inputs, and 4 extra outputs.

[byrd202]

I originally came across that WIKI page in my searches but couldn't read the Schematics. i revisited the site and found the HR link that gave me what i was looking for. im going to look into the 808, sounds promising for my use. ive been on a tight budget with the economy the way it is. Thank you for all your help, much appreciated!

[Nathen]

Hi guys I have a aftermarket efi system fitted to a 350 I am running in and offroader. The tune was not that great runs very rich at idle, I was wondering if there is a cross refferance between the holden ECU and GM. The Ecu that came with the unit is a 1227730 which is also a P4 I think. The idea is get a holden one from the wreckers (Cheap and avalible) and either convert it to Navram and run the $12 calibration. Ideally I would like the higher baud aldl to assist with logging

[antus]

Well, technically Holden is GMs main aussie brand. The code wont be compatible between the two, but I think you would be able to get pretty close reasonably easily by starting with a 5.0L tune in 12p and swapping in HSV 5.7L VE and spark tables that existed for the '808. And you could either import an ECU from here or find '165 from within the USA. Alternatively you could use the current tune as a base by copying those tables across from there, but if the tune is not so great you might be starting off from a worse place than factory. Is the engine stock?

[Nathen]

Cool when I said 350 I should have explained it a bit more, The engine started out as being a 1000 hp offshore power boat engine and it was brought to my mate to be detuned to about 800hp for another application. He spent a lot of money on it then they guy who he did it for went broke. The engine sat in his shed for about 8 years until he decided he had a use for it, then he stripped and detuned it some more and stuck it in his offroader. Long story short it's not stock and I don't think the VE tables from a standard 5.7 would work so we would be copying from the ones in the ECU.
I was just thinking if the pin outs were the same between this and say a 808 we might be better to copy the program then mess with a ECU where I can find well defined XDF's ect
If I can use a ecu with the 8192 baud rate even better (I am assuming the is 160 as it is out of a 1991 F body)

[antus]

Ahh right. Yeah similar platform, but the code wont be directly compatible and it wouldnt be worth trying to port it across. You can and would use the '808 with 8192 baud by adding one of these https://pcmhacking.net/forums/view ... f=14&t=164 or if you used the '165 then its already 8192baud capable.

[ejukated]

It's not hard to repin the loom from '7730 to '165 and run $12P, it's a lot better than $8D or even Super$8D that runs on the '7730.