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eec question

this post ties to my current problem with an 88bird as a contengency.

car is set up with mass air, 24lb inj. and automatic

if we suspect our EEC is bad,, couldnt we ask for a 93gt eec A9p which was set up for 24lb injectors?

last i checked,, this eec has a calif and non calf pn...

any info on that,,, i recall the calif version is an a9c or a9ca




Re: eec question

Reply #1
this post ties to my current problem with an 88bird as a contengency.

car is set up with mass air, 24lb inj. and automatic

if we suspect our EEC is bad,, couldnt we ask for a 93gt eec A9p which was set up for 24lb injectors?

last i checked,, this eec has a calif and non calf pn...

which eec would be best for a 302 .030 over mass air w/24lb inj.?





Re: eec question

Reply #2
If you go with the PCM from the 93 that is already set-up for 24lb injectors you will also need to change the MAF Sensor that goes along with that 93 calibration. It has to do with the preset tables regarding (maf sensor to pcm) which isn't a big thing other than the cost of buying the meter. Back in the day (some people may still have them, its been a while since I've seen those so I hope my memory is close lol) C&L Kits  had replaceable meter tubes to basically trick the pcm when people used different injectors.

Donnie
Donnie
10 Second NA TBird
Fredericksburg Va

Re: eec question

Reply #3
we are running a matching maf (older brand called "PMAF" ) but this maf matches the injectors. 
the eec we are running is apparently an A9L ,,

wouldnt it be reasonable to use a 93cobra eec
?

Re: eec question

Reply #4
this post ties to my current problem with an 88bird as a contengency.

car is set up with mass air, 24lb inj. and automatic

if we suspect our EEC is bad,, couldnt we ask for a 93gt eec A9p which was set up for 24lb injectors?

last i checked,, this eec has a calif and non calf pn...

any info on that,,, i recall the calif version is an a9c or a9ca





You would need the EEC from a 93 Mustang Cobra as well as a 93 Mustang Cobra MAF. The MAF you currently have WILL NOT WORK.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Re: eec question

Reply #5
ok,,
thank you buy the way!

mason is stumped by "why"

he knows he is running a PMAF calibrated to 24lb injectors,,
he has 24lb injectors
he has a eec equal to an A9p that is not actually set up for 24lb

so his question was should he go with the cobra 1993 EEC

the answer is no?????????????

sorry,, you just said no but i am just confirming.. we are placing an order today

Re: eec question

Reply #6
ok,,
thank you buy the way!

mason is stumped by "why"

he knows he is running a PMAF calibrated to 24lb injectors,,
he has 24lb injectors
he has a eec equal to an A9p that is not actually set up for 24lb

so his question was should he go with the cobra 1993 EEC

the answer is no?????????????

sorry,, you just said no but i am just confirming.. we are placing an order today

You can run a 93 Cobra EEC if you wish. You must run the factory MAF for that Cobra EEC. The MAF you are currently running with the A9P is set up for a 88-93 Mustang 5.0 EEC with 19lb factory injectors and will not work with the 93 Cobra EEC.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Re: eec question

Reply #7
oh,,  i see why you said that now...

Just so you know, ,,,,  that maf is calibrated to 24lb injectors.  does that change anything...

or am i wrong on that maf? 

I thought i got that maf from you ???

Re: eec question

Reply #8
nevermind,,, i remember now ,,
i got that maf,, a cobra upper/lower with 24lb inj as a kit from a member here,, i am 99.9% sure that maf is for 24lb injectors.

i have all the original files / pm's and payment stuff in my tera drive.

thoughts now?

Re: eec question

Reply #9
The MAF you have is "calibrated" to send a signal to trick the computer that's set up to fire 19lb injectors to fire 24lb injectors instead. If you put that MAF on a 93 Cobra computer it will not run correctly, because it will send the wrong signal to the EEC. So you need the stock MAF for the Cobra EEC or one that is "calibrated" to work with the Cobra EEC, which your MAF is not set up to do.

So for the 3rd time you need the stock MAF for a 93 Cobra EEC.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.


Re: eec question

Reply #11
maybe the 4th time will be  charm,,,so,, mason want clairfication to what was said.

with a cobra eec..

**********MUST THE MAF BE......
"calibrated to """"COBRA EEC & 24lb*** injectors

or CAN THE MAF BE....................
calibrated to 24lb injectors

Re: eec question

Reply #12
So a calibrated maf tricks the computer with voltages. If you have a computer setup for 19 lbs injectors and you install 24lbs injectors in the vehicle and use the stock maf you will run very rich. 24/19= 1.26 so your calibrated maf will tell the computer it has 1.26 times less air in order to compensate for the higher flow rate of the injectors. That's ALL it does it tells the computer you have 1.26 times less air with the voltage. So you take this same calibrated maf and pair it with a computer setup for 24lbs injectors and guess what it will do? It will tell the computer you have 1.26 times less air, therefore you will be too lean which is worse than too rich if you ask me. You would have to use the maf for that EEC or tune your computer which is what I did I run an A9L with 47 lb injectors and a pmaf, my software allows me to change the maf transfer (voltage the computer sees from the maf) and injector hi and lo slope and a lot more . Calibrated mafs work OK but aren't perfect. Fun fact, at light/part throttle the computer uses airflow to calculate ignition timing as well.

Re: eec question

Reply #13
STOP.
You need an X3Z EEC for 24# injectors and the factory MAF for 93 Cobra.  No "calibrated" mafs, just a stock X3Z and a 93 Cobra stock MAF. 
Calibrated MAFs are trouble, they're sensitive to differences in air filters and air cleaners, and by the time you need one, you should be tuning anyway, especially if you have heads, because a calibrated maf uses an incorrectly sized sampling tube to skew the MAF reading.  The MAF is used primarily to determine LOAD, so Garbage in, Garbage out.  Load and ACT determine timing advance, and improperly calculated advance, especially with heads and hot weather (or altitude, in the case of that crisp MOUNTAIN air) means spark knock, which means you've set a ticking clock on the life of your pistons.

At this point, you're either tuning, or you're doing things wrong.

Re: eec question

Reply #14
yeah,, thats what i keep saying to mason if he wants to go down that road of the "cobra thing".  which unto itself is from what i understand ,, the maf itself is a unique set of tables special to just the cobra.

basically i am telling him to "not" use a cobra because that very fact even takes C&L off the table if i recall correctly.