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i'm wanting to put a fox engine wiring harness in my 94 is there anything that i'll need to know or is the a way to put a A9L in the 94? is the a adapter harness (i heard pro-m makes a PIH performance improvement harness) or does anybody have the diagram to re-pin one? i'm also putting all fox p.s. pump bracket, alt bracket, and water pump and switching the throttle body to fox style all help would be appreciated

thanks matt
 

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I dont have a diagram but pih performance does make one I used it on mine a friend put it in for me
 

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Pro-M makes two different styles, the one that you have to re-pin (2nd generation) and the Plug-n-play (1st generation).......I use the 1st generation version on my 95 Cobra. you can still find them once in awhile on Ebay and on the classifieds here, usually for no less than $375 (what I paid) to about $450.
 

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seems to me that is an awful lot of work for little or no gain ... why not just get a tune?
 

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do a search on this, its been covered a gazillion times.
 

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No need to change the harness, all you need to do is change the pin out. PM me your email address or fax number and I'll send the instuctions too you. The instuctions are the most valuable part of the expensive kit. If you walk through the instructions and buy the computer, bap sensor MSD box you can do the swap fairly inexpensively.
 

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what are you gonna do about the electric fan?

Seems to me like a lot of work and headache when just the stock '94/5 EEC with a knowledgeable tuner and good tune will get you everything you're looking for.

The '94/5 EEC is a faster processor than the older ones, and is more advanced. It was the next step towards the OBDII ones that are in the '96+
 

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Discussion Starter #9
that would be great i've been looking for a pin diagram for the past 2 days online and couldn't find it i've already got a A9L and MSD 6A,coil and adj. timing control whats a bap sensor? i was just gonna rewire the fan pm sent with email

thanks matt



No need to change the harness, all you need to do is change the pin out. PM me your email address or fax number and I'll send the instuctions too you. The instuctions are the most valuable part of the expensive kit. If you walk through the instructions and buy the computer, bap sensor MSD box you can do the swap fairly inexpensively.
 

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No need to change the harness, all you need to do is change the pin out. PM me your email address or fax number and I'll send the instuctions too you. The instuctions are the most valuable part of the expensive kit. If you walk through the instructions and buy the computer, bap sensor MSD box you can do the swap fairly inexpensively.

Just to clarify - are you saying that you do NOT need to incorporate a PIH harness at all into a 94/95 5.0 - but only swap the 94/95 5.0 main engine harness pin outs THEN just plug in an A9L (A9P, etc etc) right into the end of the 94/95 5.0 main engine harness??

send me the pinout info you have as well ([email protected]) so I can look this over. Every other thread regarding the the notorious PIH swap is when incorporating the PIH harness extension...
 

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Another reason I'm so happy I bought a first gen plug and play PIH. I dunno I was going to put my J4J1 back in but with my new combo the damn thing started right up with the A3M fox computer. I used the idle air bypass screw to bring the idle down to 750 and it just sits there and purrs. This is with the combo in my sig. Not only a great idle but it has amazing throttle response(I'm using the SN95 TB setup) too.
 

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Just to clarify - are you saying that you do NOT need to incorporate a PIH harness at all into a 94/95 5.0 - but only swap the 94/95 5.0 main engine harness pin outs THEN just plug in an A9L (A9P, etc etc) right into the end of the 94/95 5.0 main engine harness??

send me the pinout info you have as well ([email protected]) so I can look this over. Every other thread regarding the the notorious PIH swap is when incorporating the PIH harness extension...
I think I understand what you mean. Yes, I believe you can make a DIY PIH kit. The fan controller is the big $$$. But you can run a fan off of the A9L it has been determined (most of them). Check fordfuelinjection.com

I did a Gen.II (re-pin) PIH once. I made a simple spreadsheet of what I was moving from the current EEC to the older EEC. Double check things and make sure you are looking at the connectors from the correct end. Also tag the wires with your current and moved to pin locations.
 

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Just to clarify - are you saying that you do NOT need to incorporate a PIH harness at all into a 94/95 5.0 - but only swap the 94/95 5.0 main engine harness pin outs THEN just plug in an A9L (A9P, etc etc) right into the end of the 94/95 5.0 main engine harness??

send me the pinout info you have as well ([email protected]) so I can look this over. Every other thread regarding the the notorious PIH swap is when incorporating the PIH harness extension...

Thats exactly what I am saying. If you change the pin out of your 94-95 harness the A9L computer will plug right into it. There were two generations of kits. The first generation was a harness, one side plugged into your cars wiring harness and the other plugged into the A9L computer. Personally this is the best way to go IMO because its of course the easiest. Unfortunatly these harness are hard to find. The second generation kit simply came with the instructions on how to change the pinout of your factory 94-95 harness. It takes a few hours to complete the swap this way but it still accomplishes the same thing. The second gen kit also came with a fan controller with built in bap sensor. Why they charge so much for it is beyond me.
 

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I think I understand what you mean. Yes, I believe you can make a DIY PIH kit. The fan controller is the big $$$. But you can run a fan off of the A9L it has been determined (most of them). Check fordfuelinjection.com

I did a Gen.II (re-pin) PIH once. I made a simple spreadsheet of what I was moving from the current EEC to the older EEC. Double check things and make sure you are looking at the connectors from the correct end. Also tag the wires with your current and moved to pin locations.
Ok first off, I too bought the kit for the first 94 I had. I too couldn't find any instructions any where else. Since then I have done the swap with the same instructions at least twice. I read electronic diagrams for a living so it wasn't hard to figure out how to do it again without having to buy the kit all over again. Once you have the instruction you don't need the kit. The fan controller that comes with the $375 kit is garbage and quit working after about a month or two anyway.

I am using a Jegs fan controller part#555-52125 and it works fantastic. Costs $26.99 Its totally stand alone. The whole section of the instructions that talk about the fan controller you can omit. Page 2 of the instructions pin 45 splices into the middle green wire of the bap sensor harness
pin 46 splices into the black wire of the bap sensor harness
pin 26 splices into the orange wire from the bap sensor harness
pin 49 gets grounded.
Follow the rest of the insructions on page two and omit the rest of the instructions on page 3. The rest of page 3 strictly deals with the junk fan controller that comes with the expensive kit.
 

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what are you gonna do about the electric fan?

Seems to me like a lot of work and headache when just the stock '94/5 EEC with a knowledgeable tuner and good tune will get you everything you're looking for.

The '94/5 EEC is a faster processor than the older ones, and is more advanced. It was the next step towards the OBDII ones that are in the '96+
If I had a dollar for everytime someone told me that I would be a rich man. I don't knock the fact that a knowledgeable tuner can get the 94-95 to run right. But the keyword here is knowledgeable. Thats the problem. The last tuner I tried, I got screwed 3 ways from Sunday. I don't have money to waste with the hope that some tuner is gonna get my tune right. On top of that I refuse to keep paying him to reburn my tune everytime I make a change to my set-up. The A9L swap works very well and I haven't looked back since.
 

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what are you using for a MAF sensor - a Fox unit or 94/95 5.0 unit cal'd to your 24lb injectors?
 

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The MAF sensor is the same on both cars. The housing is obviously different but that's it. I'm using a SN95 housing with the sensor cal'd for 24s since I have 24s stock in the cobra.
 

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i just did the first gen swap on my stock 95gt..I idled stupid and surged,cutoff all the time..Now its a dream..The swap was the best thing i have bought..Some people dont want to take a stock or mildley moded car to a tunner so this is the best fix...
 

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sounds to me like you need to find a better tuner. Hell a bad tuner will even make an a9l eec car run bad...lol

I guess if you're not pc savvy swapping to the a9l is the way to go....it's just not for me though. I believe in tuning...and tuning it myself.

I currently have a twEECer on my stock T4M0 EEC and run a modified J4J1 (cobra) tune and can make changes to my tune whenever I want.

Before I got the twEECer last year I used a SpeedBrain for like 8 years and never had any problems except that it didn't up the idle when the a/c was turned on so you had to watch it or it'd stall....lol
 
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