Megasquirt proof of concept

kasbatts · Oct 4, 2015

Well after 2 months on and of I finally drove the e9 yesterday with the Megasquirt and new EFI components, my god! What an improvement, mid range torque is outstanding and pulls like a train right through to 6k
Now to wire it all up properly and finish the throttle linkage

http://i172.photobucket.com/albums/w37/sakbattsnz/Mobile Uploads/2015-02/ms_zpsvkf6pinm.jpg~original

Sooner · Oct 5, 2015

Megasquirt

In the process of completing installation on 2002, latest issue is the O2 sensor wiring, can't wait to hear it run

sfdon · Oct 5, 2015

Make very sure the MS box and O2 sensor share the same ground.

Sooner · Oct 5, 2015

MS

Thank you, trying to figure out the 5 wires on the O2 plug right now

adawil2002 · Oct 5, 2015

Thinking of going megasquirt on Athena when the D-Jet gives me trouble next time.

sfdon · Oct 5, 2015

5 wires?
MS uses 2
O2 Ground and signal
Wide band uses 3
Ground, batt + and signal

Decent gauge brown wire from same source as main brown wire to MS unit feeds
ground to wide band.

kasbatts · Oct 5, 2015

Don (or anyone else), you may be able to help?

While everything seems to be working really well, the last small issue we have is the O2 sensor as well. Problem is it keeps dropping in temp and switches into warm up mode etc etc.
I have put this as close to the engine as possible just after the last collector in the main exh pipe but we think its just to cold there.
To get it any closer I would have to run either 1 sensor on 3 cyls only or 2 sensors, 1 on each bank of 3 cyl.

What is you experience with this?

Steve

sfdon · Oct 6, 2015

I run all my cars on 1 bank only right at the side of the tranny. Never a problem.
What brand and model?

Sooner · Oct 6, 2015

MS

Thank you!

Sooner · Oct 6, 2015

MS

Do not want to be a pest, but unsure of what wire is what

Have LSU4
Bosch part #0258007057
Wires,
Red, white, yellow, grey and black

sfdon · Oct 6, 2015

Some great reading....

http://www.megamanual.com/PWC/wire.htm

What a nightmare.....

I use the AEM (30-4110)

Easy peasy 3 wires +,_ , signal

kasbatts · Oct 7, 2015

What brand and model?[/QUOTE]

Not sure, I will have to ask my engine guy, will let you know

E9Wayne · Oct 8, 2015

Megasquirt best upgrade

Folks, aside from Don's fabulous engine transplant in my E9 (high compression B34 with piano pistons) many years ago, Megasquirt has been the best upgrade I've done. No more AFM hassles, Motronic inflexbility with upgrades like larger, free flow exhaust, etc.

Although I still feel "not worthy" against triple carb E9s, the improvements in power, driveability, etc. are simply astounding.

Plus it's fun to program it or let Autotune do the fine tuning.

afeustel · Oct 8, 2015

E9Wayne said:
Folks, aside from Don's fabulous engine transplant in my E9 (high compression B34 with piano pistons) many years ago, Megasquirt has been the best upgrade I've done. No more AFM hassles, Motronic inflexbility with upgrades like larger, free flow exhaust, etc.

Although I still feel "not worthy" against triple carb E9s, the improvements in power, driveability, etc. are simply astounding.

Plus it's fun to program it or let Autotune do the fine tuning.

+1 to what Wayne said...but I call it Type 2 fun...its not always fun to tune it but generally fun afterwards when you are done.

Megasquirt proof of concept

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