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Looking for infos

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STC

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Joined: 30 Apr 2013, 23:41

Location: Ukraine

Your CAR: AZLK 2140

SECU version: DIY SECU-3


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Post 18 Apr 2017, 23:14

Re: Looking for infos

SECU-2P&H+STEP unit can drive two low impedance injectors with peak-to-hold current ratio = 4 and one stepper motor.
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
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STC

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Post 19 Apr 2017, 11:59

Re: Looking for infos

2-ch P&H injector and stepper motor driver unit. Contains two channels to drive low-impedance (P&H) injectors and stepper motor driver. Designed to drive throttle-body injectors and stepper IAC valve. It is a versatile unit. Can be used either with SECU-3 units or with any other EMS.


Full article.
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
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Zastava128

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Post 09 Aug 2018, 22:56

Re: Looking for infos

Hello.
I have a question about VE and AFR.
If I fit the ecu on a car with carb can I use a lambda probe to get VE or to check if AFR is stoich?
I rember of Lada Axtec but it's something I can't understand.
In that case how did you get the VE?
Thank you.
Bye.
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STC

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Post 10 Aug 2018, 00:42

Re: Looking for infos

If I fit the ecu on a car with carb can I use a lambda probe to get VE or to check if AFR is stoich?

Yes, you can.
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
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Zastava128

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Post 10 Aug 2018, 19:10

Re: Looking for infos

Hello.
Thank you.
There are different lambda probes, I dont' remember how many and when it takes a controller.
What is the right probe?
I don't expect to much in conjunction with a carb, I know rich mixtures kill the probe.
Bye.
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STC

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Joined: 30 Apr 2013, 23:41

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Post 11 Aug 2018, 01:56

Re: Looking for infos

SECU supports wide band and narrow band oxygen sensors. SECU has no embedded controller for wide band oxygen sensors, but accepts analog output for full AFR range and controls mixture in full range (e.g. 8...22).
You can use any type of sensor from any manufacturer, e.g. Bosch 0 258 005 133
Last releases of firmware support heater's control using PWM, this extends lifetime of sensor.
Attachments
EGO-0 258 005 133.jpeg
Narrow band lambda sensor 0 258 005 133
EGO-0 258 005 133.jpeg (4 KiB) Viewed 281 times
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
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Zastava128

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Posts: 72

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Post 23 Aug 2018, 18:15

Re: Looking for infos

Hello.
How to build the right wiring harness?
What sort of wires?
I think that it must not be too long.
What about a car with the rear engine and battery at the front?
What is the right place for the ecu?


I don't think there are many people interesting in fitting a programmable ignition in cars like those.
I already saw that old picture.

Once upon a time I wanted to drive in races like that,just a dream.
If you want you can look for that old movie.

Bye.
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kommando

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Post 18 Sep 2018, 12:12

Re: Looking for infos

If you are using a carb then you can only use a wide band lambda probe, the narrow band will get contaminated from out of range rich mixtures and also will not cover the wider mixture range a carb will give over injection.
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Zastava128

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Post 19 Sep 2018, 19:58

Re: Looking for infos

Hello.
Thank you for the info.
Bye.
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