My Chinese version Citroen ZX, 8 valve 1.6 L gasoline
Under my engine hood
VR sensor
Fly wheel
MAP
16 Ohm low impedance injector
TPS
IAT
Stock ECU, Bosch MP 5.2
Main controller, only 8 bit
back
Lowside switch chip
It's usage
Ignition transistor
Ignition output layout
The attachments is the external schema of my stock ECU, my objective is to tailor FreeEMS to compatible with the stock socket. There's a high resolution version uploaded on sendspace.
http://www.sendspace.com/file/6icv99
My tailoring work on puma board was allmost completed but not yet doing the layout. I don't know how to use github to fork the main trunk, anyone can provide a tutorial? or I'll upload my whole working directory on sendspace latter on
Introduce to my Citroen ZX, engine, stock ECU, schema
Re: Introduce to my Citroen ZX, engine, stock ECU, schema
Cool! :-)
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FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
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Re: Introduce to my Citroen ZX, engine, stock ECU, schema
Very Cool.
Welcome on board HotCat.
Welcome on board HotCat.
Re: Introduce to my Citroen ZX, engine, stock ECU, schema
16 Ohms sounds like high impedance to me?
Re: Introduce to my Citroen ZX, engine, stock ECU, schema
Typo from 1.6? Otherwise, yes, you're right. Good spotting.BenFenner wrote:16 Ohms sounds like high impedance to me?
Fred.
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
Re: Introduce to my Citroen ZX, engine, stock ECU, schema
Yeah, It's my mistake. High impedance means I don't need chip 1949 and darlington NPN to drive my injector. I've tested my injector, the saturation current is only 1A. All I need is a MOSEFT which can interface to I/O pin directlyFred wrote:Typo from 1.6? Otherwise, yes, you're right. Good spotting.BenFenner wrote:16 Ohms sounds like high impedance to me?
Fred.
Re: Introduce to my Citroen ZX, engine, stock ECU, schema
HotCat, be careful, most normal MOSFET can't be reliably driven with the tiny current the cpu can provide. For ordinary ones, you need a driver chip. Look for logic level FETs such as the VNP10N07 or similar. Don't use PIP3104, they're junk, I found out the hard way...
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!