1_processor.gif
2_inputs.gif
3_outputs.gif
4_ign_inj.gif
5_connectors.gif
6_power_supply.gif
Schematics for 1227165 (1227808 with additional IC U2)
-
bf6379
- Posts: 32
- Joined: Wed Jun 20, 2018 1:38 am
- cars: HZ Kingswood 304
VS Ute 304
VE SV6 3.6 SIDI
VF SS 6.2
Schematics for 1227165 (1227808 with additional IC U2)
You do not have the required permissions to view the files attached to this post.
-
antus
- Site Admin
- Posts: 10012
- 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: Schematics for 1227165 (1227808 with additional IC U2)
Thanks for that. I'll make it a sticky.
For anyone looking for simiar content for other ECMs around the same era there is also a mirror of the original source (Ludis' site) with schematics and other content which we have mirrored here https://pcmhacking.net/ludis/
For anyone looking for simiar content for other ECMs around the same era there is also a mirror of the original source (Ludis' site) with schematics and other content which we have mirrored here https://pcmhacking.net/ludis/
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
-
pman92
- Posts: 667
- Joined: Thu May 03, 2012 12:50 pm
- Location: Castlemaine, Vic
Re: Schematics for 1227165 (1227808 with additional IC U2)
Awesome. I know you've also got the memcal page mirrored here. What else is mirrored here, or is that it?
-
antus
- Site Admin
- Posts: 10012
- 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: Schematics for 1227165 (1227808 with additional IC U2)
https://pcmhacking.net/memcals.html
Thats the only two. They both seemed like great information we couldnt afford to loose.
Thats the only two. They both seemed like great information we couldnt afford to loose.
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
-
Holden202T
- Posts: 10435
- Joined: Sat Feb 28, 2009 11:05 am
- Location: Tenambit, NSW
Re: Schematics for 1227165 (1227808 with additional IC U2)
No matter what the question is, the answer is always more horsepower! 
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
-
charlay86
- Posts: 586
- Joined: Thu Sep 17, 2009 4:00 am
- cars: VT S1 SS (L67)
- Location: Perth, WA
Re: Schematics for 1227165 (1227808 with additional IC U2)
For those of you who can't get simulated narrowband O2 signal from a wideband lambda controller to work with these (and later) ECMs:
If you look at the inputs schematic and take note of the O2 sensor amplifier, you will note that it has two inputs pins.
O2HI - obvious, the narrowband signal comes in here.
O2LO - perhaps less obvious, it needs to connect directly to the signal ground PIN on the wideband controller.
Ideally you would splice the wideband controller signal ground wire (goes to engine block ) and O2LO wire (to ECM) as close as possible to the wideband controller, ideally in the connector.
If you look at the inputs schematic and take note of the O2 sensor amplifier, you will note that it has two inputs pins.
O2HI - obvious, the narrowband signal comes in here.
O2LO - perhaps less obvious, it needs to connect directly to the signal ground PIN on the wideband controller.
Ideally you would splice the wideband controller signal ground wire (goes to engine block ) and O2LO wire (to ECM) as close as possible to the wideband controller, ideally in the connector.