4efte install

General talk about successes. See older information on MSRUNS forum.
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speedfreaq
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4efte install

Post by speedfreaq »

How to Megasquirt (MS) your 4EFTE

This is an attempt to document how I got my MS to run my 4efte use whatever information you find here at your own risk.

Firstly if you are reading this then you know what MS is…
So you will either have bought one already built or like me buy the kit and build it yourself.

All references made here will be for MS2 extra as that is the code I am using.

So the options for MS are numerous.
DIY autotune (http://www.diyautotune.com/) has one of the most complete resource centers for MS. With lots of different kits to chose from and completely assembled ecu as well.
http://www.glensgarage.com is another option as well for kits and complete MS assemblies.

The kit I am using is the MS2 V3 board. (bought from DIYautotune)
Image

there are also numerous other circuits you can build to add a lot of extra features to your MS (boost control, nitrous control, egt logging, water injection, launch control / flatshift, and lots more) as the code is constantly being developed.

I won’t go into the specifics of building the MS kit as that information is available at http://www.diyautotune.com and http://www.ms3efi.com
Last edited by speedfreaq on Thu Aug 18, 2011 6:53 am, edited 1 time in total.
speedfreaq
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Re: 4efte install

Post by speedfreaq »

Now first step to putting MS on your 4EFTE is the Throttle Position Sensor.
The one found on most 4EFTEs is the square 3pin TPS this will not work with the MS as this is basically just an on off switch which tells the stock ecu if the throttle is open or closed.

Stock sensor
Image

So you will need to find a throttle body (yes you will need the complete throttle body) from an automatic 4efte or 5efhe. Or find a way to modify your existing throttle body to accept the four pin TPS. I have not confirmed as yet but I think that the TPS found on the 4efte in the Glanza (EP91) are all four pin types. The TPS found and these engines are round and use 4 pins and are true Variable Resistance sensors so these are the ones that will work with the MS.

Four pin sensor:
Image

Other options for getting the correct type of TPS is to use a Throttle body from a different engine such as the 4AGE, SR20 or many others….. these would require extra modification to your inlet manifold though…

Now once the TPS is sorted out then you can move one.

If you are using the 4pin TPS from the 4efte or 5efhe then here is a diagram that you can use to get it working with your stock ecu if you need to ever return to the stock ecu without having to remove your throttle body or TPS

Image
speedfreaq
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Re: 4efte install

Post by speedfreaq »

Next step is the Crank RPM signal.

The 4efte used a distributor based VR sensor output to the ECU which has two toothed wheels and three VR sensors.
So you are going to need two VR circuits for the MS ECU.

The MS2 V3 and V3.57 boards will have one VR circuit built in so you will only need to build one extra VR circuit.
Extra boards can be ordered in a kit form from http://www.glensgarage.com or http://www.jbperf.com

Here is the schematic for the circuit you need to build

Image

I ordered the components to build the extra VR circuit and built it into the proto area of my V3 board. With a bit of patience and ingenuity it will fit.

Image


there is also a ZEAL engineering board available to build and use for the extra VR circuit..
i have used these before but they are wired a bit differently to the circuit i use above.
using the ZEAL board as is did not work for me. SO i modified the circuit to replicate the diagram i have posted above.
(not very hard to do)
Last edited by speedfreaq on Thu Aug 18, 2011 6:58 am, edited 1 time in total.
speedfreaq
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Re: 4efte install

Post by speedfreaq »

Next step is to wire up the spark output.
MS will be able to run the single coil and distributor setup of the 4efte but if you are willing to modify your existing stock wireloom then you can configure MS to run wasted spark or even coil on plug setups…

So to run your stock ignitor coil setup you’ll need to do the following mods to your MS board.

Image

Now all you need to do is wire in you MS system and start configuring the settings to work with the 4efte.

Here is a wiring diagram of how I did my wiring for my setup..
As well as the stock ecu pinout for the 4efte ECU.
Image
speedfreaq
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Re: 4efte install

Post by speedfreaq »

With the wiring I had to build a jumper harness for my MS V3 setup to connect to the stock 4EFTE wiring loom

This is what my jumper harness looks like.

Image


Its made from an dismantled stock ECU to get the ecu sockets and basically just matching the pins to where I want them on the DB37 connector

After all that you now just need to setup your ecu to work with the 4efte.

Here is a copy of my full MSQ.
this was with a 4efte with stock injectors and a ct20 turbo
Last edited by speedfreaq on Mon Feb 01, 2010 4:16 am, edited 1 time in total.
speedfreaq
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Re: 4efte install

Post by speedfreaq »

JUST REMEMBER THAT YOU WILL NEED TO TUNE.
I TAKE NO RESPONSIBILITY FOR ANYONE WHO USES THIS INFO AND DAMAGES ANY ENGINE OR OTHERWISE….
speedfreaq
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Re: 4efte install

Post by speedfreaq »

here are the main ignition settings needed:

Image

Image

Image

REMEMBER TO DOUBLE CHECK YOUR TIMING WITH A TIMING LIGHT AS YOU MAY HAVE TO PLAY AROUND WITH THE TIMING ANGLE OR THE DISTRIBUTOR TO GET IT CORRECT.
Last edited by speedfreaq on Thu Aug 18, 2011 7:01 am, edited 1 time in total.
Matt Cramer
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Re: 4efte install

Post by Matt Cramer »

Nice write up, thanks for posting it here!
Matt Cramer -1966 Dodge Dart slant six running on MS3X
speedfreaq
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Re: 4efte install

Post by speedfreaq »

your welcome....

:D
ajpilot
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Re: 4efte install

Post by ajpilot »

HI, im putting an 04 t4efte in my 93 Paseo,, I got the MS wired in and powered up, I am running the 24tooth wheel, and I have the 2nd trigger wheel, for the reset, but i dont know where to wire it in to the MS, I bought it from DIY, the pre built kit, can anyone give me a hand with this
Thanks
turbostarlet
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Re: 4efte install

Post by turbostarlet »

Hi ajpilot,

I assume you have MSII.
I think it should go to JS 10.
Please check out this link for MSII:
http://www.msextra.com/doc/ms2extra/MS2 ... Nippon.htm

And for MSI:
http://www.msextra.com/doc/ms1extra/MS_ ... .htm#2ndVR
Toyota Starlet Homemade Turbo.
2E 1.3 liter CT9 1/4 mile:14.60
2E 1.3 liter T25 1/4 mile:13.07
If everything fails, read the manual.

Toyota Starlet V2.0
4A-GTE 1.6 liter CT-26 1/4 mile 12.16
7A-GTE 1.8 liter MSIII+MS3X 1/4 mile 11.90
chacaman
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Re: 4efte install

Post by chacaman »

hi, i have a 4AGTE 18psi of bost COP sequentila running fine tunning yet
in my case my tooth #1 Angle (deg BTDC) is = a 30 is normal ? i am using 24 + 1 Nippon Denso \
or i have to set to 10?

thanks
speedfreaq
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Re: 4efte install

Post by speedfreaq »

as long as you check your timing with a timing light and all is ok then the angle you use is not a problem.

angle may need adjusting depending on distributor position.
or rotate distributor until the timing marks match......
TO82
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Re: 4efte install

Post by TO82 »

Anyone have the same setup (MS2, 4EFTE) using the Zeal daughter board? As i have connected the daughter board to the MS2 board but its not reciving an rpm signal while cranking the motor, and would like to double check the connections.

Any help greatly appreciated :)
speedfreaq
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Re: 4efte install

Post by speedfreaq »

i did an install for a friend using the ZEAL board but i had to make some changes to the circuit on the ZEAL board for it to work with the car.....
i did not run the G- signal (VR negative) to the zeal board. as both G1 and NE use the same ground signal i only sent the G- signal to the main board.
i think i also grounded pin 14 of the LM chip

check my diagram up top thats how i wired it up...
karnaugh
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Re: 4efte install

Post by karnaugh »

hi,
What is the injector deadtime/lagtime for the stock 295cc(grey) @13.2v?
chris3_76
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Re: 4efte install

Post by chris3_76 »

hi all,
I'm a newbie here. could anyone tell me the resistance value of the resistor right before going to the JS1O in the image below? thanks.
Image
chris3_76
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Re: 4efte install

Post by chris3_76 »

10k. Found it out myself.Sorry for dumb question.

I can't get the built-in vr to work though. I'm getting the dual vr by Jean to sort this out.
MagnusDK321
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Re: 4efte install

Post by MagnusDK321 »

I know this I a old thread but I gonna try and ask anyway. Can anyone help me with the ignitions settings on a ms1 extra on the 4efte engine
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