03 Cobra Runs pig rich E85

European strategy specific for 2004 ford mustang euro spec but also modified by SVT and used on the 03/04 cobra. Can be used on all 2002-2004 mustang v8 and v6 manual and automatics. Supports automatic 4r70w control. Can be used on 2001-2004 ford F-150 4.6 / 5.4 ecu's if configured correctly as well.
MBSVT
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Joined: 2021 Feb 15, 18:31
Location: Fort Lauderdale Florida 33309
Vehicle Information: Ford 1992 LX vert AM3 342 CID TFS heads 10.1 CR Long Tubes Holley Systemax Intake Accufab 75mm TB #30 INJ T5 trans 3.73 gears 150 shot NOS

03 Cobra Runs pig rich E85

Unread post by MBSVT »

03 Cobra VMP gen3r 2.65 return fuel LT headers. This is a new build. 5.0 Boss block 4.75 stroker stock CP
In this order.
I pugged in my injector data for FIC 1200 with first starting with k Constance at 30
Set SARCHG 315 CID
Set MAF transfer data for SCT ba3000
Set Stoch for E85
Kick up Crank pulse by 25% (FN052C)
Set Timing table

The car runs pig rich at idle. And have to press the gas pedal to get the car to start.
I can change the MAF date below 300 IMAF and improve a little., but something not right. I only have idle time.
Any help would be appreciated.
Thanks MB
034v
Posts: 91
Joined: 2021 Feb 22, 09:00
Location: Dallas TX
Vehicle Information: 1996 Lincoln Mark VIII LSC - Custom Turbocharged
1989 Lincoln Mark VII LSC - Custom Turbocharged --- SOLD
2013 Ford F150 FX2 - 3.5L Ecoboost
2019 Explorer Sport - 3.5L Ecoboost

Re: 03 Cobra Runs pig rich E85

Unread post by 034v »

Might have to scale the tune down due to hardware limits.
MBSVT
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Joined: 2021 Feb 15, 18:31
Location: Fort Lauderdale Florida 33309
Vehicle Information: Ford 1992 LX vert AM3 342 CID TFS heads 10.1 CR Long Tubes Holley Systemax Intake Accufab 75mm TB #30 INJ T5 trans 3.73 gears 150 shot NOS

Re: 03 Cobra Runs pig rich E85

Unread post by MBSVT »

Not sure I follow. scale down hardware meaning the injectors?
apsmith4992
Posts: 47
Joined: 2022 Jan 05, 15:08
Location: Decatur, IL
Vehicle Information: 97 cobra
Longtubes/offroad X/ SLP catback, Short runner intake, IMRC delete, 90mm lightning maf, March underdrive pulleys
aem wbo2

Re: 03 Cobra Runs pig rich E85

Unread post by apsmith4992 »

Pressing the gas to the floor is the flood clear. Try pulling some fuel out of it. Decipha was making some of these adjustments on e85 for me as well. The last revision he added fuel and it made the problem worse. So try taking it out.
034v
Posts: 91
Joined: 2021 Feb 22, 09:00
Location: Dallas TX
Vehicle Information: 1996 Lincoln Mark VIII LSC - Custom Turbocharged
1989 Lincoln Mark VII LSC - Custom Turbocharged --- SOLD
2013 Ford F150 FX2 - 3.5L Ecoboost
2019 Explorer Sport - 3.5L Ecoboost

Re: 03 Cobra Runs pig rich E85

Unread post by 034v »

MBSVT wrote: 2022 Oct 24, 17:35 Not sure I follow. scale down hardware meaning the injectors?
Original injector/ new injector = scaling %

Lower SARCHG or CID by that ratio.

New MAF Y Axis by same ratio not X Axis.

Leave Injector Offset vs Battery Voltage stock.

Factor in all E85 variables as normal.

Hit up LWFM (Load w/failed MAF) and LWFM IMRC (if you have it) by same ratio.

FN040A or Inferred Air vs RPM (or whatever your function is called) by same ratio.

High and low slope should remain stock if ratio is met. Ratio injector PW and Breakpoint.

There's more involved but it should get you going in right direction.

The way I do it is---

Take Old Injector / New Injector = Scaling % multiplier - [EXAMPLE: 24 / 60 = .4 or 2.5 if you divide NEW / OLD]
Take the KNOWN NEW injector value and change the entered NEW INJECTOR hi and low scalars against your value. - [EXAMPLE: 60 * .4 = 24 or 60 / 2.5 = 24]
Old or Known New Injector Breakpoint gets addressed against your value.
Recommended to set the Injector Pulsewidth value to your % in injector change while scaling it out against your value, or set it to 0.
Take the STOCK MAF or MODIFIED MAF Transfer and change the entire Y Axis against your value. - [EXAMPLE: 46.77 LBS * .4 = 18.708 or 46.77 / 2.5 = 18.708 and so on]
If you are changing the MAF as well, ensure you change all NEW 30 points against your value on the Y Axis. This is important because even the NEW KNOWN MAF Transfer has to be scaled and adjusted as well.
Change the LBS/MASS and/or CID against your value.
Same goes with the Manifold Volume. Change it against your value.
Hit up FN040A or depending on XDF, Estimated Aircharge Vs. RPM and tackle the bottom 3 rows of the Y Axis with the value you got for starters. The rest of the Y Axis might need it too.
Then Load w/ Failed MAF and Load w/ Failed MAF IMRC (if you have that) get the same treatment to ALL values in the table(s).
decipha
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'19 F-150 3.3L

Re: 03 Cobra Runs pig rich E85

Unread post by decipha »

negative you can forget all that

no scaling required in tunerpro. Simply plug in your injector data and maf data.

If you need to reduce the cranking pw them reduce the cranking load function.
Commanding a lowet load at crank will give you less air i.em less fuel.
MBSVT
Posts: 19
Joined: 2021 Feb 15, 18:31
Location: Fort Lauderdale Florida 33309
Vehicle Information: Ford 1992 LX vert AM3 342 CID TFS heads 10.1 CR Long Tubes Holley Systemax Intake Accufab 75mm TB #30 INJ T5 trans 3.73 gears 150 shot NOS

Re: 03 Cobra Runs pig rich E85

Unread post by MBSVT »

I looked up the injector date on FIC web site for my 1200cc injectors.
Then I simply I pugged in my injector data for FIC 1200 with first starting with k Constance at 30
Set SARCHG 315 CID
Set MAF transfer data for SCT ba3000
Set Stoch for E85
Kick up Crank pulse by 25% (FN052C) all in that order.

When I started the car, it would start but ran really rough so I turn it off I could smell raw fuel looked around for a leak and found fuel dripping out the exhaust pipe (NOT good)
pulled my oil dip stick smelled fuel, pulled all the spark plugs and I could see fuel dripping off the plugs.

Dump the oil out of the crank case and confirmed fuel contaminated oil.
Not sure where I went wrong in the tune. but I defiantly don't want to use that tune to start the car.
Injector date I have low slope 131 lb high slop 134 lb Humm
Any thoughts? Help...
034v
Posts: 91
Joined: 2021 Feb 22, 09:00
Location: Dallas TX
Vehicle Information: 1996 Lincoln Mark VIII LSC - Custom Turbocharged
1989 Lincoln Mark VII LSC - Custom Turbocharged --- SOLD
2013 Ford F150 FX2 - 3.5L Ecoboost
2019 Explorer Sport - 3.5L Ecoboost

Re: 03 Cobra Runs pig rich E85

Unread post by 034v »

All I'm saying is this works for me on a 2 bank. DW1200, BA3000 93 octane.

My CDBA4 XDF has old school scaling methods without the k-constant auto stuff done. Keep in mind the 4 bank you're using will have a different Manifold Volume and FPDM crap. Mines return.. also slower mhz.

AHISL = 39.96 LBS/HR - SCALED VALUE = 114.3119 LBS/HR actually in vehicle
ALOSL = 49.68 LBS/HR - SCALED VALUE = 142.1131 LBS / HR actually in vehicle
SARCHG = 0.0005418 OR 98.003 CID - OEM in mine is 280.348
MANIFOLD VOLUME = 1.8 - Factor yours based on xMul

BA3000 NON SCALED SCT VF VOLTS | LBS/MIN

Code: Select all

4.9999	126.2368
4.8159	112.6872
4.6421	102.4686
4.4682	92.0806
4.2876	82.2572
4.1020	73.0548
3.9414	64.3605
3.7656	56.4565
3.5947	49.1172
3.4194	42.5118
3.2436	36.4145
3.0679	31.1076
2.8926	26.3652
2.7217	22.0745
2.5459	18.4613
2.3706	15.1868
2.1948	12.5334
2.0190	10.1057
1.8486	8.0733
1.6728	6.3231
1.4976	4.8553
1.3218	3.6132
1.1460	2.5970
0.9707	1.8066
0.7998	1.1856
0.6240	0.7904
0.4488	0.5646
0.2732	0.5081
0.0976	0.3387
0.0000	0.0000
BA3000 SCALED @ 0.34958 (IF YOU DO 39.96 OLD AHISL / 114.3119 NEW AHISL) VOLTS | LBS/MIN

Code: Select all

4.9999	44.1228
4.8159	39.3996
4.6421	35.8088
4.4682	32.1865
4.2876	28.7582
4.1020	25.5290
3.9414	22.4939
3.7656	19.7365
3.5947	17.1784
3.4194	14.8509
3.2436	12.7226
3.0679	10.8721
2.8926	9.2209
2.7217	7.7216
2.5459	6.4635
2.3706	5.3155
2.1948	4.3719
2.0190	3.5384
1.8486	2.8203
1.6728	2.2122
1.4976	1.6932
1.3218	1.2633
1.1460	0.9069
0.9707	0.6291
0.7998	0.4194
0.6240	0.2726
0.4488	0.1940
0.2732	0.1730
0.0976	0.1153
0.0000	0.0000

MBSVT
Posts: 19
Joined: 2021 Feb 15, 18:31
Location: Fort Lauderdale Florida 33309
Vehicle Information: Ford 1992 LX vert AM3 342 CID TFS heads 10.1 CR Long Tubes Holley Systemax Intake Accufab 75mm TB #30 INJ T5 trans 3.73 gears 150 shot NOS

Re: 03 Cobra Runs pig rich E85

Unread post by MBSVT »

Thank you! For your input sound like that works well for you.

All I'm saying is if input all the proper date into tuner pro Why am I havening this issue?
Am I inputting this data in the wrong sequence? All this fuel going into the motor got me gun shy....
red5.0fogger
Posts: 148
Joined: 2021 Mar 22, 15:58
Location: Newington CT
Vehicle Information: 1986 Mustang GT, Stock block, TFS 170 Heads , N41 cam, ported cobra intake, nitrous, T5 , 3.73s

Re: 03 Cobra Runs pig rich E85

Unread post by red5.0fogger »

Decipha wrote:

"If you need to reduce the cranking pw them reduce the cranking load function.
Commanding a lowet load at crank will give you less air i.em less fuel."

See above how its less air gives less fuel. Decipha won't steer you wrong. It's easy to get it reversed in your head. Give that a triple check and see if that makes sense.

If the engine fires up cold the fuel shouldn't be that far off, otherwise if flooded it would even fire. That said within seconds of firing it can take much less fuel.
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