Got an A9P from dunne-rite with the MAF kit.
At the very least, I have to add provisions for a second O2 sensor...

How do I add and change pinout?
Where do I buy pins?

 

Depending what you're doing you may not want a second O2 but you're gonna need a whole bunch more injector and MAF wires and assuming this is going in a truck you have to move a bunch more. Here's a chart of what wires need to be moved(colors) and which ones need to be added(grey)..


And here how the EEC connector comes apart so you can accomplish all that. Fuel Injection Technical Library » EEC Connector

I believe these guys sell the correct pins RJM Injection Tech — Welcome but for a swap like this it may be more cost effective to source a complete donor harness from the scrapyard, remove the wires you need with the pins connected and create a little overlay harness to add to your truck.

 

Attached are the step-by-step instructions I used, should apply to you as well (I also used the A9P).

 

Thanks guys! That will come in handy. I ordered the truck kit, they sent the HO mustang kit... the mustang kit has an injector and maf harness with an connector that sandwiches in between the truck harness and the EEC. All the injector connectors are numbered, but the wires are all black... hopefully it all work out in tuning.

 

With that kit you don't need to repin the EEC connector.

 

What about adding the second O2 input?

 

My PCM (A9P) has inputs for two and I have mine just below the connection between the exhaust and headers.

I have heard you can can get away with one but the PCM does process data from the two sides of the motor so it is better to have, depending on what you're doing.

 

To use 2 sensors with that kit a trace on the overlay harness connector has to be cut and then a wire for the drivers side sensor has to be added at the appropriate spot. I did this with my kit to see if it would help and it didn't so I put it back.

 

Since there are a few more people seeming to read this thread, I'm going to fire off my $0.02 about the IST conversion kit.

First off, I think all their products are good/great quality and Steve (the only person who answers the phone for support) is very knowledgeable.

I bought a conversion kit for my truck (in signature below) and it came with:

a new A9P PCM
New C&L 76mm Mass air meter and calibration tube (more on this)
Mass Air sensor
New O2 sensor and bung
Instructions for the conversion
Baumann TCS (transmission control system) - I needed this because I have an electronically controlled transmission (E40D)

I start by going through all the steps precisely, in order, checking my work along the way. When I am 100% done with the install, the truck won't start. As it turns out, it is because of the calibration tube. This tube is needed to send a signal to the PCM fooling it into thinking you are using the MASS Air sensor in a stock sized housing or with stock injectors. And the reason it is included in their kit is because you don't have the necessary tools (or knowledge) to program the proper MAF curve in the PCM to do away with the calibration tube.

The Baumann TCS is sort of a pain to install. The Bauman is a small computer you install in the truck and it receives a signal from the PCM and sends a signal to the transmission, acting as the middle man. When I installed this, their directions weren't totally clear to a beginner and you need to re-pin two of the E40D connections for the Baumann. It's certainly not plug and play.

Here's where I think it goes wrong...the Baumann TCS is a system where you have a software program you run on windows and connect to the Baumann computer in the truck via USB cable to program all your shift points and line pressure, etc. When you think of the process I just described, it's the same as what you would have to do to program the PCM. There are several catch codes/strategies of PCMs that can control an electronic transmission so why have the Baumann in this kit? This is the second reason (the calibration tube being the first) to have access to the Ford PCM to program it.

Fast forward a couple of years and I have got rid of the C&L housing and calibration tube, got a PCM tuner with direct access to the PCM and can modify many other things (turning off EGR and removing the smog components is popular), and am thinking about taking out the Baumann TCS from the truck and programming the PCM to control the transmission.

Had I done this all over again I would have bought this kit but not the C&L housing, calibration tube, or Baumann TCS (this was included in the kit they sold to me) and in it's place I would buy a PCM tuner, in my case I have the Tweecer-RT, and a wideband O2 to tune the MAF curve. Then I'd use the tuner to program the transmission.

 

That would be my advise too overall it's the better solution, and just for clarity for others that may read this thread at some point you can't do that with the Mustang computer you would have to use a MAF truck computer because the Mustang PCM doesn't have the hardware to control one of these electronic transmissions.

 

Can you just repin the factory wiring harness on these maf swaps?


The truck I am working with is a 96 f350 cab and chassis.

 

Yes you can, but I'd advise you to solder any splices and not use crimp connectors. To solder you may need to remove the wiring harness to do a good job.

 

I mean why is an overlay fuel injection harness really needed?


should this not just be move wire to a new pin location?


and the maf is just a few new wires to this 60 pin connector?

 

Maf fires injectors sequentially, sd bank fires. So with sd you have common power for all 8 injectors and then two grounds, one for each bank. With mass air you have common power but separate grounds for each injector that each have a connection to the PCM

Correct about the sensor.

 

I see taking the whole harness out is probably the way to go.



custom air intake and MAF conversion for a 1988 Ford F150