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ExtraEFI ECU's |
Please note, these are specific for the ECU's I sell
as I modify all mine to give you some of these extra's!
Some will need adding when ordering.
- Hardware Comparisons
- Feature Comparisons
- Standard Setup Comparisons
MS1 |
MS2 |
MS3 |
Number of Injector Channels capable of
driving |
2 channels |
Up to 4 * |
Up to 8 ** |
Injector Channels with Lo-impedance capability. |
2 |
2 |
2 |
Idle Valve Output for a 2 or
3 wired idle valve (PWM) |
Yes |
Yes |
Yes |
Stepper Motor Idle Valve (4
Wired) |
No |
Yes |
Yes |
Fuel Pump Relay Control |
Yes |
Yes |
Yes |
Air Inlet Temperature, Coolant
Temperature, Oxygen Sensor, TPS inputs. |
Yes |
Yes |
Yes |
WideBand and NarrowBand Lambda
Compatable |
Yes |
Yes |
Yes |
21 PSI Built in MAP sensor |
Yes |
Yes |
Yes |
***Optional
38 PSI MAP sensor |
Yes |
Yes |
Yes |
Max number of VR sensor Input (Magnetic crank
sensor), Hall or Points Input |
2**** |
2**** |
2**** |
Spark Drivers (Number added is dependant on your engine) |
Up to 6 |
Up to 6 |
Up to 8** |
RS232 Serial Comms |
Yes |
Yes |
Yes |
CAN Comms |
No |
Yes |
Yes |
USB Comms |
Yes (With suitable adaptor) |
Yes (With suitable adaptor) |
Yes (No adaptor needed) |
***Knock,
launch, NOS, fuel / spark table switching inputs. |
Yes |
Yes |
Yes |
***Spare Analogue
Inputs |
2 |
2 |
2 ( 3 **) |
***Cooling
Fan control, boost control, tach outputs. |
Yes |
Yes |
Yes |
***Water
Injection (PWM) output |
Yes |
No |
No |
* - MS2 and MS3 ECU's can be built with up to 4 injector channels.
(Anything over 2 injector channels would need high impedance injectors only.)
** - MS3 ECU's need an MS3X card added to give these features
(Spark drivers on the MS3X board are low level and need coils with built in ignitors)
*** - See the optional extra's as these need to be added during the build stage to work.
**** - The MS1 and MS2 has one VR/Hall input as standard,
I can add another one to MS1 or MS2 depending on your engine's requirments.
MS3 with an MS3X card has 2 VR / Hall inputs.
Features: |
MS1 |
MS2 |
MS3 |
Fuel Table Size |
12x12 |
12x12 or 16x16 |
16 x 16 |
RPM Resolution |
100 RPM |
1 RPM |
1 RPM |
Fuel Resolution |
100uS |
***0.16uS |
***0.16uS |
Spark Table Size |
12x12 |
12x12 |
16 x 16 |
Advance Resolution |
0.3 Deg |
0.1 Deg |
0.1 Deg |
Batch Fire |
Yes |
Yes |
Yes |
*Sequential
Fuel Firing. |
No |
Yes up to 4cy |
Yes up to 8cy |
*Semi-Sequential Fuel Firing |
No |
Yes |
Yes |
*Sequential
Ignition with suitable cam and crank inputs. |
Yes (Up to 5cy) |
Yes (Up to 5cy) |
Yes (Up to 8cy) |
*Distributor
Based |
Yes |
Yes |
Yes |
*Wasted
Spark with suitable cam/crank signals. |
Yes |
Yes |
Yes |
*Coil
On Plug (COP) with suitable cam/crank signals. |
Yes |
Yes |
Yes |
Mapped Table for Individual Injector Trim
|
No |
Up to 4 Channels |
Up to 8 Channels |
Mapped Table for Individual Spark Trim
|
No |
No |
Up to 8 Channels |
Mapped Table for Individual Injector Timing
|
No |
Timed for start, middle,end of injection pulse |
Timed for start, middle, end of injection pulse |
Spark Dwell control |
Yes |
Yes |
Yes |
**Boost
control |
Open Loop |
Open loop and closed with PID |
Open loop and closed with PID
|
Barometric Correction taken
at power on |
Yes |
Yes |
Yes |
**Real
Time Baro Correction |
Yes |
Yes |
Yes |
Test Mode for Fuel Pump, Injectors and Spark. |
No |
Yes |
Yes |
Rev Limiter |
Yes |
Yes |
Yes |
Over Run Fuel Cut |
Yes |
Yes |
Yes |
Staged Injection, control 2
banks of injectors seperately |
Yes |
Yes |
Yes |
Acceleration Enrichment |
RPM, TPS, MAP based |
RPM, TPS, MAP based |
RPM, TPS, MAP based |
Enhanced Acceleration Enrichment - wall wetting |
No |
Yes |
Yes |
AFR Target Tables |
Yes |
Yes |
Yes |
| * - This is dependant on your engine setup and
how you want the ECU configured. ** - See the optional extra's as these need to be added to work. *** - The fuel control resolution won't actually be down to this level due to VE and req_fuel resolution. But the hardware is capable of this control. |
| Setups that can be decoded as standard: | MS1 |
MS2 |
MS3 |
Distributor Based |
Yes |
Yes |
Yes |
Ford TFI and EDIS |
Yes |
Yes |
Yes |
GM HEI and GMDIS |
Yes |
Yes |
Yes |
Dual Distributor |
Yes |
Yes |
Yes |
Neon 420 |
Yes |
Yes |
Yes |
Ford 36-1 |
Yes |
Yes |
Yes |
Bosch, GM, Vauxhall, BMW, etc
60-2 |
Yes |
Yes |
Yes |
36-1+1 |
No |
Yes |
Yes |
36-2-2-2 |
No |
Yes |
Yes |
Subaru 6/7 |
No |
Yes |
Yes |
IAW Weber- Marelli |
No |
Yes |
Yes |
Mitsubushi 6g72 |
No |
Yes |
Yes |
4/1 CAS |
Yes |
Yes |
Yes |
4G63 (Miata) |
Yes |
Yes |
Yes |
99-00 Miata |
No |
Yes |
Yes |
Renix 44-2-2 |
No |
Yes |
Yes |
Twin trigger (aka. dual spark) |
No |
Yes |
Yes |
Suzuki Swift |
No |
Yes |
Yes |
Suzuki Vitara |
No |
Yes (Untested!) |
Yes (Untested!) |
Daihatsu 3 cyl |
No |
Yes (Unproven) |
Yes (Unproven) |
Daihatsu 4cyl |
No |
Yes (Untested!) |
Yes (Untested!) |
Rover K Series 36-1-1 |
No |
Yes |
Yes |
Rover K Series 36-1-1-1-1 |
No |
Yes |
Yes |
Rover K Series 36-2-2 |
No |
Yes (Untested!) |
Yes (Untested!) |
Honda VTR1000 12-3 |
No |
Yes |
Yes |
Chrysler 2.2/2.5 |
No |
Yes |
Yes |
GM 7X native |
No |
Yes |
Yes |
Nissan 360 tooth CAS |
No |
under test |
under test |
Note that all the listed setups would need to
have the ECU configured and built for them specifically,
this is what I do when I build them for you.
As can be seen on the following tables, some functions can NOT be used with others. I recommend a maximum of 4 extra's (not including the use of Spark Outputs), I don't recommend using Boost Control with Water Injection (MS1-Extra) as they can cause interference with each other as both cause a lot of noise inside the ECU.
MS1 Options
MS2 and MS3 Options
Description of Options
MS1 Option Configuration
Two functions in the same row can NOT be used together!
e.g. NOS and Water Injection as they are not used in another pad, etc,
but NOS and Tacho could, as tacho can come from JS3.
Pad |
Function A |
Function B |
JS0 |
Cooling Fan Relay |
Water Injection Water Pump
Relay |
JS1 |
NOS Relay Output |
Water Injection PWM Output Water
Valve ¡ |
JS2 |
Programmable Output 1 |
Boost Controller PWM Output ¡ |
JS3 |
Programmable Output 2 |
Tacho output |
JS5 |
Constant
Barometric Correction |
Second O2 sensor |
JS7 |
Spark E (5 COP - 10 and over wasted spark setups) |
... |
JS8 |
Second Trigger Input |
... |
JS9 |
NOS Input (To switch tables
or retard ignition) |
Switch VE and or Ignition
map and or Boost target Tables |
JS10 |
Spark F (12cy wasted spark setups) |
Knock Input |
JS11 |
Launch Control input |
... |
D14 |
Spark A (Used for vertually all ignition setups) |
... |
D15 |
Spark C (6cy and over wasted spark setups) |
Programmable Output 4 (Cooling Fan Relay) |
D16 |
Spark B (4cy and over wasted spark setups) |
... |
R1 |
Spark D (8cy and over wasted spark setups) |
Programmable Output 3 (Timed
delay possible) |
Note: Most outputs can be set for Tacho, ExtraEFI.co.uk uses JS3 if available.
MS2 and MS3 Option Configuration
Any function in the same row (A B C D E or F) can NOT be used together!
(e.g. if your using a
Stepper motor for idle you can not use NOS control as its not used in another
pad, etc,
but Stepper motor and Tacho could as Tacho can come from JS11, or others.)
Please note: For MS3 ECU's without an MS3X board you can have the same options as the table below.
If you go for an MS3X board then you will get THESE options all built in, so ignore the table below.
Pad |
A |
B |
C |
D |
E |
F |
JS0 |
Stepper Motor (JS0 - JS3) † |
Programmable Output |
Tacho
Output |
NOS Relay Output (Stage 1) |
Boost Control PWM Output |
... |
JS1 |
Stepper Motor (JS0 - JS3) † |
... |
... |
... |
... |
... |
JS2 |
Stepper Motor (JS0 - JS3) † |
Programmable Output |
Tacho
Output |
NOS Relay Output (Stage 2) |
Boost Control PWM Output |
... |
JS3 |
Stepper Motor (JS0 - JS3) † |
... |
... |
... |
... |
... |
JS4 |
Constant Barometric Correction |
Knock Input |
Launch Control Input |
Second O2 input |
NOS Input |
Spark F (12cy wasted spark setups) |
JS5 |
Constant Barometric Correction |
Knock Input |
Launch Control Input |
Second O2 input |
NOS Input |
Spark E ( >= 10cy wasted spark setups) |
JS7 |
... |
... |
... |
... |
... |
Switch VE and or Ignition
map Tables |
JS10 |
Second Trigger Input |
Launch Control Input |
Tacho Output |
EDIS SAW output |
NOS Input |
... |
JS11 |
Spark D (>=8cy wasted spark setups) |
Launch Control Input |
Tacho Output |
Programmable Output |
Boost Control PWM Output |
... |
D14 |
Spark A (Vertually all igntion setups) except EDIS |
Programmable Output |
Tacho Output |
... |
... |
... |
D15 |
Spark C ( >= 6cy wasted spark setups) |
Programmable Output |
Tacho Output |
... |
... |
... |
D16 |
Spark B ( >= 4cy wasted spark setups) |
Programmable Output |
Tacho Output |
... |
... |
... |
FIdle |
PWM Idle Valve Control (2
or 3 wired valves) |
Tacho output |
Programmable Output |
Boost Control PWM Output |
... |
† All 4 (JS0-JS3)
pads are used for the stepper motor if selected!
Note: Most outputs can be set for Tacho, ExtraEFI.co.uk uses
JS11 if available.
Description of Options: # NOS - Nitrous control (An output to drive a relay coil that's triggered by a minimum RPM, TPS, etc; It also uses an input that switches to a new timing map or fixed ignition retard. Can be used as an Anti-Lag for turbo applications too. Buffered, flywheel protection circuit +£12 Please Note: This is counted as 2 options, 1 for the input, 1 for the output, so only 2 more can be added) See HERE for more details #NOS - Nitrous control for MS2-Extra Only (up to 2 outputs to drive a dual stage or single stage NOS setup that's triggered by a minimum RPM, TPS, etc; It also uses an input that switches to a new timing map or fixed ignition retard. 2 x Buffered, flywheel protection circuit +£15 for 2 outputs or +£12 for 1 output Please Note: This is counted as 2 or 3 options, 1 for the input, 1 or 2 for the outputs) See HERE for more details.
# Boost control (Target values for boost levels depending on TPS and RPM, controlling the turbo's waste gate high powered FET driver +£10 †) See HERE for more details # 38PSI - 400KPa Manifold Pressure Sensor (The standard MAP sensor is capable of 21PSI of boost, in some rare cases this may not be enough, so a 38PSI (400KPa) sensor can be fitted. +£50) See HERE for more details # Water injection control for MS1-Extra Only (Pulsed water injection output to give a proportional water ratio using a fast acting valve and a water pump relay output high powered FET driver for the valve and a buffered, flywheel protection circuit for the control relay +£15 For water pump relay control ONLY buffered, flywheel protection circuit +£5) See HERE for more details # Dual EGO sensor support (Filter components for a 2nd separate Lambda sensor, 1 for each bank of a V6 or V8 +£5) # Shift / Warning Light (I can add a single output that can be switched by several sources e.g. Air temp, RPM, coolant buffered, current limited circuit ready to directly connect to an LED +£5 Includes a red LED please remind me though, as I tend to forget to include it from time to time :o( See HERE for more details # Launch Control / Flat shift (Limit RPM during takeoff / shifting to get a better 1/4 mile time Buffered and protected circuit +£8) See HERE for more details # Real-time (Constant) Barometric Correction (Really only suitable for hill climbers or mountain dwellers includes filtering circuit and a second MAP sensor fitted internal to detect atmospheric pressure +£25) # Cooling Fan programmable output (An output that controls a relay for your cooling fan. This has a programmable ON temperature and a programmable OFF temperature built in flywheel protection, buffered circuit +£5) See HERE for more details. # Up to 4 programmable Outputs (A driver to control a relay built in flywheel protection, buffered circuit +£5 each) See HERE for more details # Knock sensor input (Connection wiring only!! This needs a pre-built knock circuit, see HERE for more details. FREE internally wired only!!!) # Tacho Output for coil pack use (To feed various Rev Counters high voltage output transistor circuit +£5 ‡) See HERE for more details # Dual wheel decoder/2nd trigger input (For a second hall sensor input opto protected circuit with hall conditioning +£15 For a second VR sensor input including separate VR conditioning circuit +£35) Up to 4 additional items like, launch, prog outputs, knock, etc can be added. For more info on these functions please contact me. † - This code is experimental although some
people have had some considerable success with the system. |
MegaSquirt Engine Management Prices