Speed density to mass air
#16
I don't think that ECU can be programmed.
Each ECU has it's own pin out. For example, if one ECU with a strategy of AAA uses pin 5 for injector #4, an ECU with a strategy of BBB might use pin 23 for injector #4. So you will either need to trace all the wires in in the harness and re-pin or need to know what the old pin out is and what you need to go to.
Each ECU has it's own pin out. For example, if one ECU with a strategy of AAA uses pin 5 for injector #4, an ECU with a strategy of BBB might use pin 23 for injector #4. So you will either need to trace all the wires in in the harness and re-pin or need to know what the old pin out is and what you need to go to.
#18
If you can't program that ECU, then yes, you will need an ECU you can program and that will require pins to be moved around. There are many ECUs that can be programmed, but not all.
First look and see what software you want to use because programming a certain ECU will depend on the software too. Two options are tunerpro (free) and EEC Analyzer & Binary Editor. Each one supports a certain number of programmable ECUs. I use TunerPro. A couple of common strategies that can be programmed are A9L/A9P and U4P0/T4M0.
Once you know what ECU you will be using you will then know what pins to move
First look and see what software you want to use because programming a certain ECU will depend on the software too. Two options are tunerpro (free) and EEC Analyzer & Binary Editor. Each one supports a certain number of programmable ECUs. I use TunerPro. A couple of common strategies that can be programmed are A9L/A9P and U4P0/T4M0.
Once you know what ECU you will be using you will then know what pins to move
#20
The strategy is not part of the part number, it is separate. See here - A59A48FA-36A8-489D-83DC-2FA40FDC868C-27242-00001F9D0353EA4A.jpg Photo by payupsuka | Photobucket
and here
http://tinyurl.com/ho26bmj
and here
http://tinyurl.com/ho26bmj
#21
4fte 351 SD to MAF
Isnt it possible to use the equipment of a 95 302 MAF motor on a 93 351 SD? i just got a 93 4x4 f150 351 that i want to upgrade while the motor is out. Cam and headers to start. Also the truck harness of the 302 should just replace the 351 harness right? Thanks in advance guys!!!
#22
Isnt it possible to use the equipment of a 95 302 MAF motor on a 93 351 SD? i just got a 93 4x4 f150 351 that i want to upgrade while the motor is out. Cam and headers to start. Also the truck harness of the 302 should just replace the 351 harness right? Thanks in advance guys!!!
You can replace the cam (and headers) in that motor without needing a MAF upgrade, as long as you get a certain cam (one that is within specs for the ECU to adjust to). But if you want to get a stupid crazy cam, like me, then yes, you will need an upgrade to MAF.
#23
I'm betting that the '95 has a 4R70W transmission and the '93 has an E4OD transmission.
Just swapping the harness and PCM won't work because the '95 PCM is for a 4R70W transmission.
Unless you have the tuning software, you would have swap the 4R70W trans from the '95 into the '93.
That's if they have different transmission's. And if it's a ZF5 or C6 standard, then you will need a tuner to disable the functions for the Automatic.
Hopefully this will help. If I've missed anything, I'm sure others will chime in.
Also, it would be best to start a new post rather than posting in this old one.
Just swapping the harness and PCM won't work because the '95 PCM is for a 4R70W transmission.
Unless you have the tuning software, you would have swap the 4R70W trans from the '95 into the '93.
That's if they have different transmission's. And if it's a ZF5 or C6 standard, then you will need a tuner to disable the functions for the Automatic.
Hopefully this will help. If I've missed anything, I'm sure others will chime in.
Also, it would be best to start a new post rather than posting in this old one.
#24
As for the wiring harness...one option would be to take apart your harness and re-wire the injectors as well as making some other changes to the harness when you re-pin. You can also just overlay a new harness with only what you need (injectors and MAF) on top of your existing harness; here you would remove pins from your ECU that you don't use any more and then re-pin your harness with the overlay.
MAF conversions aren't terribly complicated if they are planned out well, if not you can waste $$ on parts real fast.
#25
Join Date: Jun 2006
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Another note on harness swapping. Installing the engine portion alone from a MAF truck only gives you 1/2 of the wires you need, the chassis portion of the SD harness does not contain the wiring for sequential injection or the MAF meter so you still have to add those wires form the junction back to the PCM connector. And the chassis portion of the engine harness simply does not unplug anywhere it is integrated with the main harness in the truck so cutting and splicing is required to swap that part. This is the main reason I always suggest building an overlay harness to add to your truck.. it's easier in the long run, you can use a donor harness from another truck to build it and the best part is you don't have to be super careful about extracting it, just chop of anything that doesn't run straight between the computer and engine. Then when you get home lay it out on the floor somewhere, peel all the tape and wire loom off and extract the wires you need.
#27
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