• Mustang Forums
  • Digital Self-tuning Forum

Medusa Megasquirt.... help lol

  • Thread starter Thread starter Wilky-Medusa 2.0
  • Start date Start date Jun 16, 2019
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Next
First Prev 4 of 6 Next Last

Blucifer99

I only understand every 3rd word
Jul 15, 2018
466
31
38
Port Mcnicoll Ontario
Jun 20, 2019
#61
  • Jun 20, 2019
  • #61
a91what said:
yeah on his the white wire should be the analog input.
Click to expand...

well then he has it wired up backwards.. so ive got him now switching those wires around.. putting the white wire to the O2 output on the DB9 options port connector ontop of the meagsquirt.. should he just leave the blue wire unhooked and taped off.. cause i have no idea where the serial wire would go.. LOL i dont have a AEM
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Jun 20, 2019
#62
  • Jun 20, 2019
  • #62
a serial connection is a form of data transfer via a serial bus connection. basically its binary data transfer
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jun 22, 2019
#63
  • Jun 22, 2019
  • #63
hey Aaron this is the new log...... she fired right up and is running great
 

Attachments

  • the aaron ve wilky tune.zip
    the aaron ve wilky tune.zip
    22 bytes · Views: 162

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jun 22, 2019
#64
  • Jun 22, 2019
  • #64
Wilky-Medusa 2.0 said:
hey Aaron this is the new log...... she fired right up and is running great
Click to expand...
 

Attachments

  • wilky n aaron got it.msl
    wilky n aaron got it.msl
    2.5 MB · Views: 166

Blucifer99

I only understand every 3rd word
Jul 15, 2018
466
31
38
Port Mcnicoll Ontario
Jun 22, 2019
#65
  • Jun 22, 2019
  • #65
Wilky-Medusa 2.0 said:
hey Aaron this is the new log...... she fired right up and is running great
Click to expand...

thats way better LOL.... but looks good afr is finally agreeing with tunerstudios.. idles strong too.. lookin good so far man..
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Jun 22, 2019
#66
  • Jun 22, 2019
  • #66
looks like there may be an issue with the MAT sensor wiring or possibly a backfire in the intake, notice in the log the MAT sensor registers a high MAT temp for a few seconds.
The PWM duty upon cranking is too low, the idle spark correction looks too aggressive for the cam. The PWM duty% goes to near 100% to keep the car idling at 825ish.
Just a few things that jump out at me.
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jun 22, 2019
#67
  • Jun 22, 2019
  • #67
last one long one changed tuned died changed lol restored changed and last few was running decent its really hot out
 

Attachments

  • my last log of 622.zip
    my last log of 622.zip
    22 bytes · Views: 146

Blucifer99

I only understand every 3rd word
Jul 15, 2018
466
31
38
Port Mcnicoll Ontario
Jun 22, 2019
#68
  • Jun 22, 2019
  • #68
Wilky-Medusa 2.0 said:
last one long one changed tuned died changed lol restored changed and last few was running decent its really hot out
[/QUOTE
Click to expand...
a91what said:
looks like there may be an issue with the MAT sensor wiring or possibly a backfire in the intake, notice in the log the MAT sensor registers a high MAT temp for a few seconds.
The PWM duty upon cranking is too low, the idle spark correction looks too aggressive for the cam. The PWM duty% goes to near 100% to keep the car idling at 825ish.
Just a few things that jump out at me.
Click to expand...
meow what would be causing that spike.?? the afrs are dead on .. could it just be a lil cough maybe since everythings still new.. just breakin in sorta thing? also he had to open his throttle body screw since we adjusted his low idle.. apparently at 825 and a 30% pwm idle valve the car would stall out from not enough air supply.. so he backed it off abit maybe abit to far .. he needs a initial values table built for a auto car too.. hes using a slighty modified version of mine.. also his idle advance was for me to get it decently stable enough to figure out what she wanted for fuel... we had the wrong injector setttings in there lol 95lbs so ves were 93 lol changed that and i belive were at 13.8 at 54 or 56 ve.. The idle adavnce we can always back down try alittle less aggressive curve. see what happens i guess
 
Last edited: Jun 22, 2019

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Jun 22, 2019
#69
  • Jun 22, 2019
  • #69
Auto cars are a completely different animal for tuning. It want timing try 22* at idle.
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jun 28, 2019
#70
  • Jun 28, 2019
  • #70
lean needs fuel for the cruise riding first out shifting 2nd is lean.
 

Attachments

  • first ride.zip
    first ride.zip
    159.7 KB · Views: 147

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Jun 28, 2019
#71
  • Jun 28, 2019
  • #71
how is it coming along? you should probably be close to a point where a tuning class would get you where you are doing it all by yourself. When i have a chance i will look at the datalog and tell you what i think.
 
Reactions: Wilky-Medusa 2.0 and Blucifer99

Blucifer99

I only understand every 3rd word
Jul 15, 2018
466
31
38
Port Mcnicoll Ontario
Jun 28, 2019
#72
  • Jun 28, 2019
  • #72
That idle valve is acting weird... Going to 100% on startup and back to 34.4 when you hit the throttle then it opens fully to 98.9.. LOL gotta get that straightened out .. somethings up with that valve or the wiring..
 

Blucifer99

I only understand every 3rd word
Jul 15, 2018
466
31
38
Port Mcnicoll Ontario
Jun 28, 2019
#73
  • Jun 28, 2019
  • #73
a91what said:
how is it coming along? you should probably be close to a point where a tuning class would get you where you are doing it all by yourself. When i have a chance i will look at the datalog and tell you what i think.
Click to expand...

well so far the cars idling and running fine.. starts up good.. holds a steady idle.. but i did dumb down his idle advance curve alot. since his cars auto it dont need that aggressive of a curve.. also i added a ton fuel to his loaded part of his VE table.. car was abit lean he was sayin,, but not by much.. target 15.0- actual afr 15.8.. so its in range.. but now his idle valve is acting funny.. fully open on start up until you burp the gas and it plains out to where it should be 34.4% then slowly climbs wide open to 98%... no idea whats causing that.. it was working perfectly before.
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jun 28, 2019
#74
  • Jun 28, 2019
  • #74
Blucifer99 said:
That idle valve is acting weird... Going to 100% on startup and back to 34.4 when you hit the throttle then it opens fully to 98.9.. LOL gotta get that straightened out .. somethings up with that valve or the wiring..
Click to expand...
 

Attachments

  • umby.zip
    umby.zip
    68.6 KB · Views: 188

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jun 28, 2019
#75
  • Jun 28, 2019
  • #75
Blucifer99 said:
That idle valve is acting weird... Going to 100% on startup and back to 34.4 when you hit the throttle then it opens fully to 98.9.. LOL gotta get that straightened out .. somethings up with that valve or the wiring..
Click to expand...
I did an auto tune with this log and took a touch out of idle when pulled in...
 

Attachments

  • 3rd ride.zip
    3rd ride.zip
    472.2 KB · Views: 217

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jun 28, 2019
#76
  • Jun 28, 2019
  • #76
the tune
 

Attachments

  • new frm auto tune.msq
    new frm auto tune.msq
    117.2 KB · Views: 182

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jul 1, 2019
#77
  • Jul 1, 2019
  • #77
i did an auto tune last night was a quick little ride... i have to figure out my alt issue,,, always chasing something.... seems phat at idle n looks like 15.1 on cruise ...but im sure auto tune sees that lol
 

Attachments

  • wilkys night ride from jims.zip
    wilkys night ride from jims.zip
    419.8 KB · Views: 194

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jul 1, 2019
#78
  • Jul 1, 2019
  • #78
a91what said:
how is it coming along? you should probably be close to a point where a tuning class would get you where you are doing it all by yourself. When i have a chance i will look at the datalog and tell you what i think.
Click to expand...
im just chasing a bunch of dumb issues,,,, ill deff need some advanced tuning when i get into boost,,, may take some time to chase charge issue,,,, thnx for the feedback
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,721
214
Hillsborough county
Jul 1, 2019
#79
  • Jul 1, 2019
  • #79
Yes it does, my tunes target 14.7-15.1 depending on the cam and what the engine will agree with at cruise. This is for emmisions and fuel economy.
 
Reactions: Wilky-Medusa 2.0

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jul 1, 2019
#80
  • Jul 1, 2019
  • #80
a91what said:
Yes it does, my tunes target 14.7-15.1 depending on the cam and what the engine will agree with at cruise. This is for emmisions and fuel economy.
Click to expand...
ok great so she is running decent have not brought into boost yet not sure if i even brought to 0 vacum lol...
 
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Next
First Prev 4 of 6 Next Last
You must log in or register to reply here.

Similar threads

Tunerstudio help / services
  • Kabuki_notch
  • Apr 26, 2026
  • Digital Self-tuning Forum
Replies
2
Views
290
Digital Self-tuning Forum May 2, 2026
Mustang5L5
R
please help 87 mustang megasquirt 2 idle problems
  • robbie5.0
  • Jun 2, 2025
  • Digital Self-tuning Forum
Replies
2
Views
451
Digital Self-tuning Forum Jul 18, 2025
tate302
T
X
VE Table Not Dialed? Send Me Your Datalog.
  • X-cam34
  • Feb 8, 2026
  • Digital Self-tuning Forum
  • 2 3
Replies
49
Views
1K
Digital Self-tuning Forum May 1, 2026
X-cam34
X
Fox Help
  • 93fox85
  • Mar 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
222
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 23, 2026
Noobz347
O
WTB Looking for an SCT X4 tuner for my 2005
  • optionizerSS
  • Jun 8, 2026
  • Want to Buy
Replies
0
Views
73
Want to Buy Jun 8, 2026
optionizerSS
O
Share:
Bluesky Email Share Link
  • Mustang Forums
  • Digital Self-tuning Forum
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?