89 Mustang MS3 gold box tuner studio idle control and injector dead time

whats your favorite foxbody body style

  • Notchback

    Votes: 5 83.3%
  • Hatchback

    Votes: 0 0.0%
  • Convertible

    Votes: 1 16.7%

  • Total voters
    6

91mustanglxcoupe

New Member
Apr 8, 2013
8
0
1
31
DeMotte, Indiana
I have a 89 mustang with SBF 302 with GT40P heads and Vortech V1 blower at 10psi and running the ms3 gold box with tuner studio. In the idle control section I'm trying to find out what the valve mode is supposed to be set at inverted or normal for a stock IAC valve. Idle valve type is set at PWM valve 2/3 wire setup and algorithm set to open loop. Trying to get the cold and hot cranking tuned. I'm running Siemens Deka 60's and letting VE table dial itself in with auto tune. I'm also trying to find correct deadtime for injectors which is currently set to 1.00ms. Can anyone help me out thanks.
 
  • Sponsors(?)


90sickfox

I didn't really have an issue with the stink...
SN Certified Technician
Mar 2, 2015
5,316
4,357
203
42
My 89 had to be set to inverted.
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
10,145
6,052
204
31
Hillsborough county
simple way to check for idle valve polarity is to change the valve setting in warmup mode from 30% to 100% and see if the idle speed increases if it does not invert the polarity and try again.
 

91mustanglxcoupe

New Member
Apr 8, 2013
8
0
1
31
DeMotte, Indiana
Thanks guys I was changing idle duty at warm up and wasnt doing anything with valve mode at normal setting . I thought I had posted this to the digital tuning forum thanks.
 

91mustanglxcoupe

New Member
Apr 8, 2013
8
0
1
31
DeMotte, Indiana
Not really sure I'm reading this spreadsheet right on my phone deadtime I can see is 0.41 on the spread sheet do i meed to modified numbers in the spreadsheet I'm running 42psi fuel pressure. Not sure what I'm susposed to change if anything
 

91mustanglxcoupe

New Member
Apr 8, 2013
8
0
1
31
DeMotte, Indiana
I see ms3 output and the beta small pulse width curve which says is total garbage and below that I see the deadtime of 0.41 should I use that as my deadtime then i'm confused about this
 

91mustanglxcoupe

New Member
Apr 8, 2013
8
0
1
31
DeMotte, Indiana
I tried that dead time and the fueling is way off so I been trying to dial in back in using autotuned and driving around seems to be running ok now but cold starts are still not good trying to dial in WUE and need to figure out the cranking pulse and priming pulse settings for colder startup temps
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
10,145
6,052
204
31
Hillsborough county
The dead time values are what they are if your fueling is off then you have to tune the VE table.

Step1: Get the correct settings into the ECU
2: Tune the Ve table best you can with the engine fully warmed up
3: work on the idle settings to get the car to idle at the speed you want.
4: repeat the above steps but work on the warmup and cranking ASE settings with each cold start.

I think you have some of your settings incorrect for the idle, The Ford idle valve is a 2 wire PWM type... not a stepper so you will have a PWM% output to the valve.

I also offer classes and tuning services if you need help tailored to you, I do this all the time and have a great rep.
 
Thread starter Similar threads Forum Replies Date
T MS3 Gold Box (87-93 Mustang) - IAC Valve Mode Question Digital Self-tuning Forum 4
beyondEOD 94-95 Mustang 5.0 AODE MS3 Gold Box w/ Microsquirt Digital Self-tuning Forum 62
V 2005 mustang GT won't go into reverse 2005 - 2009 Specific Tech 1
N 67 mustang dash lights not working 1965 - 1973 Classic Mustangs -General/Talk- 0
G 1991 mustang engine compartment restore 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 10
U What's it Worth? 67 Ford Mustang Thermactor Smog System What is it Worth?!?!? 1
G Hello From Socal 1996 - 2004 SN95 Mustang -General/Talk- 0
L Clutch brake pedal problems 1965 Mustang Classic Mustang Specific Tech 3
F For Sale 1977 Mustang 2 Steering Column!! Mustang II Parts 0
D Codes pulled from mustang SN95 4.6L Mustang Tech 0
6 San antonio mustang owner The Welcome Wagon 1
S Very high mileage Mustang for sale 2005 - 2009 Specific Tech 5
S Hello new Mustang owner here The Welcome Wagon 1
H 2000 mustang gt should I supercharge 1996 - 2004 SN95 Mustang -General/Talk- 4
A New to the Mustang game The Welcome Wagon 3
A 93 mustang premium sound radio question 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 15
M 1994 - 1998 SN95 Mustang Paint/Color Guide - Production #'s too! 1996 - 2004 SN95 Mustang -General/Talk- 0
T 2016 Mustang GT *Random Misfire's CEL* Charge Motion Valve "Flaps" in Intake Manifold 2015+ (S550) Mustang -General/Talk 3
A Tire Help 2005 - 2009 Specific Tech 1
F Fox 88 mustang 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 25
M 97 Cougar 3.8 to 96 Mustang 3.8 swap....What is easiest non Mustang swap?? 1996 - 2004 SN95 Mustang -General/Talk- 0
B For Sale 99 - 04 Mustang H-pipe with working Cats for sale Other Classifieds 0
M 2002 Mustang GT Rear End Squeak 1996 - 2004 SN95 Mustang -General/Talk- 3
nickyb Craigslist freebie, mustang 2 missing motor trans rear and front clip,Las Vegas. 1974 - 1978 Mustang II Talk & Tech 5
B Found a project mustang - I blame Warhorse Racing for this 1996 - 2004 SN95 Mustang -General/Talk- 0
J For Sale Used 2015-2017 MUSTANG Wheel Rim 18x8 Aluminum 5 Spoke Wheels Tires Brakes 0
R Electrical 89 Mustang - Dead battery - Clicking from circuit breaker Fox 5.0 Mustang Tech 6
B 1994 mustang cooling fan wiring? PLEASE HELP!! 1994 - 1995 Specific Tech 0
Mustang5L5 Haggerty’s 64-15 Mustang pricing 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 19
C 88 Mustang won’t start? Fox 5.0 Mustang Tech 5
8 Coolant leak Fox 5.0 Mustang Tech 4
P Will any Ford SOHC 4.0 fit my 08 Mustang? 2005 - 2009 Specific Tech 1
A Progress Thread 1996 mustang gt build 1996 - 2004 SN95 Mustang -General/Talk- 3
Drumsgtret 2008 Mustang Convertible GT- Cluster Assembly upgrade 2005 - 2009 Specific Tech 1
A Greetings Mustang lovers The Welcome Wagon 3
M 2001 GT no start electrical issue SN95 4.6L Mustang Tech 10
N Replacement Options for 2001 Mustang SVT Tail Lights-Damaged in Hail Storm SN95 4.6L Mustang Tech 0
S 66 Mustang front brakes drum to disc conversion 1965 - 1973 Classic Mustangs -General/Talk- 1
R 1969 mustang headlight upgrade wiring kit 1965 - 1973 Classic Mustangs -General/Talk- 0
J 2001 MUSTANG V6 SPUTTERS WHEN ACCELERATING SN95 V6 Mustang Tech 8
T No power to the MAF Sensor 1996 - 2004 SN95 Mustang -General/Talk- 0
Andresquintana.mma Fox What coilovers are you running on your street/drag mustang? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 10
E Fastlane Motorsports dyno tuning ? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 0
D For Sale 1993 Ford Mustang LX Convertible 2.3L NE Wisconsin Fox Body Mustangs For Sale (1979-93) 0
DudeStang For Sale FS: Roush Axle Backs Exhaust Parts 2
Blown88GT Fox Modified 1988 Ford Mustang SSP 5.0 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 1
B 2001 ford mustang/anti theft problem 1996 - 2004 SN95 Mustang -General/Talk- 2
M Mustang ii 2.3L 4 speed manual flywheel 1974 - 1978 Mustang II Talk & Tech 9
K Please Help!! Shifting from 1st to 2nd 2015+ (S550) Mustang -General/Talk 1
Jetzv8 2014 Mustang radio not working. NEED HELP Mustang Sound & Shine All 0
Similar threads