Frank, if you are out there here is the information you were looking for from the EEC tuner. I am starting to have that problem again with my car missing. I installed an MSD Billet TFI Distributor and the car has a terrible miss now. I am thinking that something is not right with the EEC tuner settings. If anyone has info on how to tune or read these please help. Let me know if this looks OK to you guys.

Thanks,
Ken

A9L

DRIVE_IDLE 1000 # Drive Idle RPM
NEUTRAL_IDLE 1000 # Neutral Idle RPM
MAX_RPM_CLOSED_THROTTLE_IDLE 1150 # Maximum RPM for Closed Throttle Mode Idle, rpm.
NEUTRAL_IDLE_OL_DELAY 176 # Time in seconds under CL control before going OL.
LOW_INJECTOR_SLOPE 24.0001 # Injector slope lbs/hr
HIGH_INJECTOR_SLOPE 24.0001 # Injector size lbs/hr
INJ_DELAY 0 # Global injector delay (crank deg.)

MAF_FUNCTION # Mass Air Transfer Function (Volts, Kg/Hr)
( 15.9998, 835.509 ) ( 4.76807, 835.509 ) ( 4.44312, 830.123 )
( 4.177, 738.872 ) ( 3.88599, 619.424 ) ( 3.54395, 494.905 )
( 3.35498, 430.903 ) ( 3.14893, 366.585 ) ( 2.90991, 318.425 )
( 2.69409, 263.928 ) ( 2.58203, 238.898 ) ( 2.44995, 210.065 )
( 2.31592, 185.985 ) ( 2.15405, 148.915 ) ( 1.98901, 124.202 )
( 1.88989, 111.845 ) ( 1.80298, 102.023 ) ( 1.69092, 90.2996 )
( 1.57397, 77.3091 ) ( 1.46802, 67.1702 ) ( 1.32104, 55.4471 )
( 1.18188, 45.6251 ) ( 1.09106, 40.5556 ) ( 0.884033, 31.3672 )
( 0.75, 23.4462 ) ( 0.571045, 13.6242 ) ( 0, 13.6242 )
( 0, 13.6242 ) ( 0, 13.6242 ) ( 0, 13.6242 )


WOT_ADVANCE_VS_RPM # WOT spark Advance vs RPM
( 16383.8, 32 ) ( 5000, 32 ) ( 3500, 32 )
( 2600, 32 ) ( 2150, 30 ) ( 1800, 28.5 )
( 1000, 8 ) ( 0, 8 ) ( 0, 8 )


BASE_SPARK_TABLE # Base Spark Table (Deg BTDC)(Load vs RPM)
28 28 28 31 33 34 36 36 36 34
28 28 28 31 33 34 34 38 38 36
28 28 33 36 36 37 38 38 38 36
25 26 28 29 32 36 38 38 38 36
20 21 25 28 31 34 35 36 36 34
15 15 16 24 26 30 33 34 34 34
8 10 10 22 24 26 30 32 32 32
8 8 9 20 20 24 30 32 32 32


SEALEVEL_LOM_SPARK_TABLE # Sea level LOM spark table.
28 28 28 31 33 34 36 36 36 34
28 28 28 31 33 34 34 38 38 36
28 28 33 36 36 37 38 38 38 36
25 26 28 29 32 36 38 38 38 36
20 21 25 28 31 34 35 36 36 34
15 15 16 24 26 30 33 34 34 34
8 10 10 22 24 26 30 32 32 32
8 8 9 20 20 24 30 32 32 32


ALTITUDE_LOM_SPARK_TABLE # Altitude LOM Spark Table (Deg BTDC)(Load vs RPM)
28 28 28 31 33 34 36 36 36 34
28 28 28 31 33 34 34 38 38 36
28 28 33 36 36 37 38 38 38 36
25 26 28 29 32 36 38 38 38 36
20 21 25 28 31 34 35 36 36 34
15 15 16 24 26 30 33 34 34 34
8 10 10 22 24 26 30 32 32 32
8 8 9 20 20 24 30 32 32 32


OL_FUEL_MULTIPLIER_VS_RPM #
( 16383.8, 0 ) ( 1100, 0 ) ( 1075, 0.953125 )
( 0, 1 ) ( 0, 1 ) ( 0, 1 )


CLOSED_THROTTLE_OL_FUEL_MULTIPLIER # Closed Throttle Open Loop Fuel Multiplier (RPM, Multiplier).
( 16383.8, 1 ) ( 1400, 1 ) ( 1000, 0.851562 )
( 900, 0.851562 ) ( 0, 1 ) ( 0, 1 )


BASE_FUEL_TABLE # Base Fuel Table (A/F ratio)(Load vs ECT)
16.3556 16.3556 16.1269 15.7837 15.2119 14.9831 14.4112 13.725 13.725 13.9537
16.1269 16.1269 15.555 15.2119 15.0975 14.9831 14.4112 13.725 13.725 13.9537
12.9244 13.0387 13.0387 13.1531 13.2675 13.4962 13.3819 13.725 13.725 13.1531
12.4669 13.1531 13.1531 13.1531 13.6106 13.9537 13.725 14.4112 14.4112 13.4962
11.6662 12.6956 13.0387 13.1531 13.6106 13.6106 13.725 14.4112 14.4112 13.725
11.0944 11.0944 12.3525 12.3525 12.6956 13.1531 12.9244 13.0387 12.4669 12.4669
10.2937 10.2937 11.6662 11.6662 12.0094 12.3525 12.5812 12.5812 12.4669 12.3525
9.6075 9.6075 11.4375 11.4375 11.6662 12.0094 12.3525 12.3525 12.3525 12.3525


END

Anyone knowledgeable in this area? Please help.

[GTRaptor]

More likely a problem with the MSD Dist. since you mention the problem started when you installed it. Was it intstalled correctly?

Have you tried uploading just a minimal EECtuner configuration file?
Such as only moving injector size and MAF transfer table.

This might help you isolate the problem.

This is the second Distributor I have put in. I sent it back to MSD the first time thinking it was the problem, but they sent me a brand new one and it does the same thing. Thing runs fine with the stock distributor. Someone told me that the performance distributor is amplifying a current problem. Someone else (Yahoo EECtuner Group) told me that my injector slopes were wrong because I have a calibrated mass air sensor to match the injectors and also have the computer tuned for the injectors. The purpose of the calibrated mass air was to trick the computer and tuning it nulled it out. What do you think? Can you look at my settings above and let me know if they look OK? Just trying to troubleshoot here. Thanks for all your help!!
Ken

[GT50]

Hey Ken, nice to hear from you again. Too bad you are still having problems though. Sorry, I cannot help with any EEC tuner problems because I have not had any experience or exposer to the program.

How is a MSD distributor any different internaly than a stock Ford other than it's made from billet aluminum? It still must have a pick up and a module in it right? If it runs fine on the stock dist then the problem must be internal on the MSD unit. Have you tried installing your distributor in a buddies car to see if it acts up the same or not. Worth a try to see the outcome. Sorry buddie that I couldn't help out..

[86Cobra]

Originally posted by wickedstang92
Someone else (Yahoo EECtuner Group) told me that my injector slopes were wrong because I have a calibrated mass air sensor to match the injectors and also have the computer tuned for the injectors. The purpose of the calibrated mass air was to trick the computer and tuning it nulled it out. What do you think? Can you look at my settings above and let me know if they look OK? Just trying to troubleshoot here. Thanks for all your help!!
Ken

You either need to change your injector slopes back to stock (19) OR input the mass air transfer function for your meter. The injector slopes and the mass air transfer function work together.

Also, what cam are you running? You shouldn't need to set your idle to 1000 rpm.

[GTRaptor]

Are you using the stock TFI module?

Also 86Cobra is right, the injector slopes and MAF function work together.

[GTRaptor]

Try this for MAF and Injectors:

LOW_INJECTOR_SLOPE 27.3235 # Injector slope lbs/hr; Raised high slope 10%, good idle characteristics.

HIGH_INJECTOR_SLOPE 24.8395 # Injector size lbs/hr This is the stock scalar for 24# injectors

MAF_FUNCTION # Mass Air Transfer Function (Volts, Kg/Hr)
(15.9998,976.9028308)(4.76807,976.9028308)(4.44312 ,970.6053538)
(4.177,863.9118769)(3.88599,724.2496)(3.54395,578. 6581538)
(3.35498,503.8250462)(3.14893,428.6224615)(2.90991 ,372.3123077)
(2.69409,308.5927385)(2.58203,279.3268923)(2.44995 ,245.6144615)
(2.31592,217.4593846)(2.15405,174.116)(1.98901,145 .2208)
(1.88989,130.7726154)(1.80298,119.2884308)(1.69092 ,105.5810708)
(1.57397,90.39217846)(1.46802,78.53746462)(1.32104 ,64.83045538)
(1.18188,53.34627077)(1.09106,47.41885538)(0.88403 3,36.67549538)
(0.75,27.41401846)(0.571045,15.92983385)(0,15.9298 3385)
(0,15.92983385)(0,15.92983385)(0,15.92983385)


Use the above WITHOUT any of the other modifications you made with the Tuner. If it works then add your file mods one by one.

Thanks, I will try that format and let you know what happens. I also have an E-303 cam for the question earlier. As far as the Distributor goes, I have the MSD module on the distributor. This is the second distributor from MSD and I have had the same problem with both of them. I cant figure it out. I will try it on one of my friends car and let you know what happens.

Ken

[GTRaptor]

Could be the TFI module not being compatible...mmmm

OK I just finished playing with the new settings on the EEC Tuner and the engine likes them so far. The miss is gone and the thing idles way smoother now. It is warm now though so we will see how it does cold. I think the maf settings were wrong, because I added all the stuff back one by one like you said and it worked. Only thing changed were the new slopes and maf settings you provided. Thank you for the help. I had a feeling it was not the distributor. I will keep you posted and let you know how it does cold tomorrow. Thanks again everyone for you help/inputs.

Ken

[GTRaptor]

Glad that work, just check the plugs in a week or so to see if theres too much/little fuel. The MAF table i provided is more less aproximate to the size of the MAF, i extrapolated the values from a 73mm C&L. But it should be very close.
Look for detonation when the car is hot.

[S/W 2]

I think I've found a new home! The technical expertise here is just what I've been looking for.

Keep up the good work, guy's... I'll just keep reading!

[S/W 2]

Ok guy's,

Some help here will be greatly appreciated. I am setting up a program for my "tuner" to help calm down the engine and make it more street friendly in the part throttle area. This will be for an A9L. I have 30# inj and have already inserted all the MAF function in the file. The first question I have is, what formula is used to calculate the hi and low injector slopes? Or, if someone can help with the appropriate numbers.

I seem to remember reading somewhere here that the most important changes to make, with an injecter change, are to let the processor know what size injectors you're using and to input the new MAF xfer data. Is this true? And, Lord help me, I presume that these are the appropriate areas, correct?

Thanks in advance for any assistance.

[86Cobra]

Are you using the GUI software of the Shiftmaster software? In the Shiftmaster software, use 36 for the low and 30 for the high. The GUI injector slopes are in lbs/sec (vs lb/hr) so divide your lbs/hr numbers by 3600. Your low would be .01 and the high would be .008333.

Play around with the low slope until you get the best idle. Usually somewhere around 20% higher than the high slope works well.

Inputing your transfer function and actual injector size works much better than the "fool the EEC" method used by aftermarket meters.