Last post by Chuck W -
So, I got things to the point where I'm able to do this.
Got the PATS delete tune flashed and no smoke escaped from the wiring harnesses as I've put together, so I consider that a win.
Only have the bare essentials together to power things up, but a lot of needed things aren't wired yet.
Lots of DTCs and no crank, but the fuel pump is "priming" as it's running full voltage, but seeing as there is no fuel in the system to pressurize, it's not going to see pressure and shut the pump down. It appears that the earlier FDMP is working as it should, and I maybe don't need to deal with the FPCM.
Last post by Chuck W -
Well, after a couple of days of driving, the PS reservoir was low again. The fittings on the rack are clean and the boots are new-ish and aren't full of fluid, but should probably warrant a closer look. I replaced the PS return hose with new clamps and cleaned things up. Watching it run, it looks like the pressure line is seeping at the crimp.
Also, at this point, the front main seal on the engine is merely a suggestion. That's where the bulk of the "mess" is coming from. I may need to park the car until I can get the drivetrain pulled out for the reseal/clean/port induction/MS swap.
I need to do a couple things on her Beetle, mainly to get the parts/boxes out of my way. Then this may move into the "work bay" spot and I'll bounce back and forth between it and the wagon. There are piles of parts in my way for this project as well, and it would be nice to get them off the floor and on the car.
Last post by Chuck W -
OK, finally got the parts I was waiting on.
That's a FPDM (Fuel Pump Driver Module) from an '02 Mustang, but pretty standard for many of the '99-04 Fords with the returnless fuel systems.
Originally, I was going to try and use the '11 FPCM (Fuel Pump Control Module), but was going to have to find a way to spoof the signal from the RCM (Restraints Control Module). After '05, the cars did away with the inertia switch and used impact sensors over CANBUS to feed the RCM and that would be used to shut down the fuel system in case of an issue. I was going to feed a 10Hz square wave signal to the FPCM, which is supposed to be the "all clear" to allow pump function. That still may work, but I figured there had to be a way to do things without that.
Not having spent much, if any time with Mustangs past '00-'01, I never even knew about all of this.
Anyway, the car with the FPDM also used an inertia switch, to interrupt power to the fuel system in case of an crash, and still modulated the fuel pressure based on the need. I'm replacing the earlier "white button" inertia switch with the later "red button" one, which is rated to carry the full current load for the fuel system, instead of just a control voltage for the the old FP relay.
This was the last of the stuff I needed to get my fuel system stuff wired up and be able to start doing power-up and systems checks.
I still have a good day of getting things wired up to the bulkhead connector to do these tests, but I finally have pieces in hand to hopefully make that work.
That's where the bulk of the "mess" is coming from. I may need to park the car until I can get the drivetrain pulled out for the reseal/clean/port induction/MS swap.