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# Conflicts: # FAQ_Ignition.md # Fuel/Fuel_Control/Fuel_Overview.md
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# D is for... **DISTRACTION**
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One of the major things rusEFI struggles with is the developers and contributors getting sidetracked by interesting shiny things.
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When this happens we can loose a Dev for several days while he plays with a quantum capacitor or tries to implement crypto mining on the spare CPU cycles.
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While in essence this is not a bad thing, it does mean that progress slows right down. With enough distraction then progress grinds to a halt.
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It is due to these distractions (and the fact that some times out Devs also have lives!) that rusEFI has a lot of features that are partially implemented and require further work to finish them off.
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What this means is we politely request that people try not to ask easily answered questions to the Devs and keep feature requests to a minimum for now.
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There are details of our plans for fuel strategy improvements [at this link](Roadmap_Fuel) as well as a comprehensive list of existing features and ones that are in development [here](Dev_Status)
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If your idea does not already appear there then consider making a Github ticket but please have a think if that feature would really add to rusEFI and if it needs to be done ASAP. If not then please tag the ticket as a future feature and low priority.
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Most simple questions can be answered by [searching the wiki](HOWTO-Search-on-rusEFI-wiki) or by [searching the forum](https://rusefi.com/forum/search.php)
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@ -6,8 +6,8 @@ The topics below are an attempt to cover as many of the common key questions we
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---
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## Will rusEFI work with my "XYZ" coils?
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In theory rusEFI will work with any coils from nearly any vehicle produced since the Daimler motor carriage of 1901.
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In reality there are some practicalities to that mean some coils are easier than others.
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In theory rusEFI will work with any coils from nearly any vehicle produced since the daimler motor carriage of 1901.
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In reality there are some practicalities that make some coils easier than others.
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The rusEFI ignition circuits are designed to work at 5v and are not designed to resist the large currents produced when controlling an ignition coil. "Well that's is no good!" I hear you think - actually, it is perfectly fine provided certain conditions are met.
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@ -29,21 +29,23 @@ Most more modern ignition coils are smart for these exact reasons and in order t
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---
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## OK you made your point but which coils do I need?
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## You made your point but what coils do I need?
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That all depends if you want to buy new coils or already have some. In general we would advise to buy "smart coils" but we are also big fans of working with what you have or raiding the junk yard (read this as we are tight).
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We have attempted to compile a list of coils [here.](Vault_Of_Ignition_Parts)
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---
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## Thanks but that really did not help, please tell me exactly what to do?
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OK, ok, this question needs tackling in several parts, please pick the option you need below:
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Ok, this question needs tackling in several parts, please pick the option you need below:
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<details><summary><u>I want to buy new coils</u></summary>
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If you are looking to buy new coils then we would recommend taking a look at the list of Ignition coils that have been tried with rusEFI.
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[List of ignition coils](Vault_Of_Ignition_Parts)
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In general though we recommend trying to get a tried and tested solution and getting coils that are easily available in your local area.
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There are lots of tried and tested options that can be found by [**searching the forum.**](https://rusefi.com/forum/search.php)
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</details>
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@ -53,8 +55,9 @@ In general though we recommend trying to get a tried and tested solution and get
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<details><summary><u>My coils are newer smart coils</u></summary>
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Great, then you can wire them directly to the ECU.
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However please take care to check that the coils you have really do incorporate the ignition driver into the coil.
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Having 3 or 4 connectors pins is not a guarantee that a coil is a "smart" coil.
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However please take care to check that tht coils you have really do incorporate the ignition driver into the coil.
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Having 3 or 4 connectors pins is not a guarantee that a coils is a "smart" coil.
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There is some information on known smart coils and how to work out if you have a smart coil that can be found by [**searching the forum.**](https://rusefi.com/forum/search.php)
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</details>
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@ -64,7 +67,7 @@ Great - same as the smart coils, please double check your coils are actually sim
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You will need to source an external ignition module to go between the ECU and the coils.
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These are generally quite cheap and can be found on some cars in the junk yard. We also made our own simple module [here](fix link)
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There are some tested Ignition modules on the Ignition components list.
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There are some tested Ignition modules on the Ignition components list and some can be found by [**searching the forum.**](https://rusefi.com/forum/search.php)
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[List of ignition components](Vault_Of_Ignition_Parts)
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</details>
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@ -76,7 +79,8 @@ There are some tested Ignition modules on the Ignition components list.
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## I need an ignition module, what now?
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Most older coils will need this and some cars have them as standard.
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These are not to be confused with the EDIS module that some ECUs require; that is a more complex unit that does some of the functions for those simpler ECUs.
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These are not to be confused with the EDIS module that some ECUs require that is a more complex unit that does some of the functions for those simpler ECUs.
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Lots of users have already had to tackle this issue so there is a host of options that can be found by [**searching the forum.**](https://rusefi.com/forum/search.php)
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There are several available modules some are listed on the Ignition components list.
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[List of ignition components](Vault_Of_Ignition_Parts)
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## What about adding IGBTs on the board to drive coils directly?
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Actually we already have this in the form of the Prometheus and Hellen boards.
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These boards are intended as all in one solutions.
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These boards are intended as all in one solutions.
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---
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## I have a coil with 3/4/5 pins, does this mean it is a smart coil?
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Absolutely not.
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Some Bosch dumb coils have 3 pins, one is used for ignition misfire monitoring.
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Wasted spark coils can share one common pin and then have a single pin for each coil pair. Resulting in a dumb coil with 3-5 pins.
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Some wasted spark coils have 2 pins for each coil pair inside the pack.
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This means it is vitally necessary to check the requirements of your actual coils by reviewing the wiring diagrams or [**searching the forum.**](https://rusefi.com/forum/search.php)
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@ -8,7 +8,7 @@ Airfuel.jpg
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Original graphic found here [1]
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Most people who are installing tuneable ECU's like rusEFI are looking for more power at the track; however, your fuel weight advantage is also commonly important. So it is common that an engine will be tuned for peak power when over a certain load, and peak economy when at a cruise load. OEMs are often concerned with minimal environmental impact, so they may tune to a different AFR. Once you have decided on what your AFR strategy is going to be, you'll have to tune rusEFI to deliver that strategy. You will probably use a wide band oxygen sensor to measure your AFR and ensure that your are meeting your desired AFT plan.
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Most people who are installing tune-able ECU's like rusEFI are looking for more power at the track. However your fuel weight advantage is also commonly important. So it is common that an engine will be tuned for peak power when over a certain load, and peak economy when at a cruise load. OEM's are often concerned with minimal environmental impact, so they may tune to a different AFR. Once you have decided on what your AFR strategy is going to be, you'll have to tune rusEFI to deliver that strategy. As well you will probably use a wide band oxygen sensor to measure your AFR and ensure that you are meeting your desired AFR target.
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# Supported fuel control algorithms
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rusEFI supports mono, individual/sequential and batched fuel injection using one of the following fuel control algorithms:
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![BareMRE](Hardware/Images/BareMRE.png "Bare MRE")
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2. **Partially Populated Board**: More than a half of components soldered to it. This board would require the end user to do some SMT and/or through-hole soldering to get a functional board.
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![PartialMRE](Harware/Images/PartialMRE.png "Partial MRE")
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![PartialMRE](Hardware/Images/PartialMRE.png "Partial MRE")
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3. **Fully Populated Board**: No soldering is required by the end user to have a fully functional board but a case is not included.
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![PopulatedMRE](Hardware/Images/PopulatedMRE.png "Populated MRE")
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See Hardware/Deucalion/Deucalion_0_1_uart.jpg
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![](Hardware/Deucalion/Deucalion_0_1_uart.jpg)
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From right to left:
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<details><summary><u>Coils and ignition modules</u></summary>
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* List of tested coils - Coming Soon
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* List of tested Ignition modules and IGBTs - Coming Soon
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* [List of tested coils](Vaut_Of_Ignition_Parts)
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* [List of tested Ignition modules and IGBTs](Vaut_Of_Ignition_Parts)
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</details>
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# The Vault Of Ignition Parts
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### This page is intended as a container for all trialed ignition components that are external to the ECU.
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---
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## Ignition coils
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### Smart coils
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* LSx ignition coils - Considered the cheap goto for US users. Can be purchased cheaply from junkyards and Ebay.
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### Dumb coils
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* BMW M50 coils - Tested and working with VW ignition module
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---
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## Ignition Modules
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* VW 1.8t 4 cylinder module - PN 4D0905351
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Tested and working with BMW Coils, uses a pair of ampseal plugs (easily available on ebay). Wiring layout available on the forum.
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# Getting Started
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- [How to search the Wiki](HOWTO-Search-on-rusEFI-wiki)
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- [Quick Start](HOWTO_quick_start)
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- [How to ask questions](HOWTO_ask_questions)
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- [Support](Support)
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