Fuel pump driver or control modules, Ford or other? Specs? Pins?

[RoadWarrior222]

Heya,

Any stang or megasquirt gurus know anything about how the Ford or any other fuel pump driver modules operate? Know any specs on them? They just came to my attention as potentially handy PWM controllers that I could abuse for nefarious purposes (i.e. speed or voltage controls for any ~12V crap) However, I'm not real sure from what I've found so far, what inputs they expect, and what exactly the pin functions are.

Well 2 diagrams I have here are ...

Annnd...


Which seem a bit contradictory when I'm tryna brain it out, though they are from different models.

So, I'm kinda hoping that the control signal is 0-5V analog... or something very simple if digital... don't need to monitor.. just wanna hook up power and get the switched output out.

Anyone have any clue what these units will handle power/amp wise, I think I could use just 10A worth, but if there's a HD application, twin pump deally for a truck etc, that goes a lot higher that would be great to know.

I kinda should just read up and custom build my own PWM but the way things go for me time wise, I'd be 4 months doing that, and 1 month debugging it, and not get time on the intended application. So if these could be easyish plug and play black boxes, that would be great.

Thanks muchly

RW222

[risen]

Heya,

Any stang or megasquirt gurus know anything about how the Ford or any other fuel pump driver modules operate? Know any specs on them? They just came to my attention as potentially handy PWM controllers that I could abuse for nefarious purposes (i.e. speed or voltage controls for any ~12V crap) However, I'm not real sure from what I've found so far, what inputs they expect, and what exactly the pin functions are.

Well 2 diagrams I have here are ...

Annnd...


Which seem a bit contradictory when I'm tryna brain it out, though they are from different models.

So, I'm kinda hoping that the control signal is 0-5V analog... or something very simple if digital... don't need to monitor.. just wanna hook up power and get the switched output out.

Anyone have any clue what these units will handle power/amp wise, I think I could use just 10A worth, but if there's a HD application, twin pump deally for a truck etc, that goes a lot higher that would be great to know.

I kinda should just read up and custom build my own PWM but the way things go for me time wise, I'd be 4 months doing that, and 1 month debugging it, and not get time on the intended application. So if these could be easyish plug and play black boxes, that would be great.

Thanks muchly

RW222

My brother helped someone convert a 05 gt stang to have a blower and I was there helping him troubleshoot a lack of pressure at the rail and it turned out to be a dead module shipped from the company that sold the kit. From what I understand the fuel system was upgraded to gt500 spec of 2 or 3 years ago. Those came from the factory with 2 pumps with separate drivers from the factory, so the kit consisted of dual fuel pumps, with dual driver circuits and 2 of those modules, so if you're looking for 2 modules in one housing the gt500 from the late 00's won't do (IDK about newer ones, or trucks). Like everything else blue oval, those modules were directly pwm driven and I'd be surprised if there were any that were different. I don't know what the period or min/max dc is, but I was told they're duty cycled pwm to drive the pumps to maintain the target fuel rail pressure. The gt500 modules had a different p/n than the regular gt models, but I have no idea what the actual ratings are.

If you have a specific module in mind I can try and get some info, but it all depends on how much time my brother has and how readily available the info is to the techs.

[shackwrrr]

could it be that it is just a fancy transistor and the PWM is just a logic level output of the PCM?

[RoadWarrior222]

Could be, I guess, purely a "driver".

Doh, is that what you're saying risen? That PWM signal goes into them, and they're just heavy duty switching?

[risen]

Could be, I guess, purely a "driver".

Doh, is that what you're saying risen? That PWM signal goes into them, and they're just heavy duty switching?

Thats my current understanding, yes.