95 BRONCO 460 SWAP QUESTION

Hey fellow bronco brothern. I have a somewhat big problem.. i recently bought a 95 f250 with a 460/e40d combo to swap into my 95 bronco with a 302/e40d.. currently the 460 is being rebuilt and ready to put in.. now i know the f series trucks have rwabs and a slectable fuel tank switch vs bronco with 4wabs and a window switch.. so my question i went to swap the wiring behind my dadh today and realized there's some differences in harness which i kinda expected.. the one thing i didnt expect is that the plug for our window switch is different on the f series. So my question is.. is can i reuse my harness thats original to my bronco or should i use the 250s harness. Im concerned that if i reuse the broncos harness that the wiring for the psom and abs will be differnt amd wont work. And if i use the 250s harness that ill lose my rear window function and possibly my fuel pump.. if ANYONE has don this swap in a 92-96 bronco and can offer some insight i would greatly appreciate it

I haven't done such a swap, but it seems to me that the far easier thing to do is to find out what doesn't work using the Bronco harness and move on from there.  It certainly seems like there would be far less adaptions to make using the original Bronco harness.

Perhaps Al has an example in his massive data base.  I'm sure he will chime in on this one.

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Hmm.. yea i figured id just hook up the wiring harness and see what i get next time i have time on it.. im sure the 250s main harness to the dash connection will have the same wiring for fuel pump, air controls and cluster but im pretty sure i will lose my rwabs function which will leave me dead in the water with the trans.. but i can probably run a stand alone trans controller to remedy that problem.. im just hoping there a less cost effective way lol..

Yo ants95bronco,

EDIT!!!!

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As Fred advised and you have decided, go with the existing Bronco harness.

Wiring Diagram



Source: by FireGuy50 via KC200787

I thought I had a 5.0 to 460 EFI swap, but it is gone because the site can not be retrieved by web archive, such as I did for this swap:

302EFI Speed Density to 406 Mass Air Swap in an 87

Source: by Chris P (Maximum) at http://web.archive.org/web/20070422221412/http://www.abysmal.com/bronco/engine/Engine.html

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Can you 'Splain what else you are doing with the Bronco aside from the 460 swap?

Are you swapping the 250's PCM into the Bronco?

Keeping the Bronco 8.8 with vss? If so, the 4wabs will probably work, at least the VSS signal will get INTO the 4WABS mmodule AND OUT to the PSOM and onto the E4OD as well to the Speed (Cruise) Control.

I do not think that the 250s PCM will stop the 4wabs from working.

My Internet is almost dead, so I will look at the 95 EEC IV PCM pin legend when it opens and post it here...

It is at http://web.archive.org/web/20120118104425/http://www.oldfuelinjection.com/truckpinouts.html

Pin Diagram at http://web.archive.org/web/20120115055622/http://www.oldfuelinjection.com/?p=3

1995 F250 7.5 (460) RABS Wiring Diagrams @ http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=2014

1995 Bronco 5.0 4WABS Wiring Diagrams @ http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=2013

Wiring colors to vss are same, and I BELIEVE BOTH VSSs ARE SAME, measure resistance in ohms for both to compare.

Ford has made resistance change in 96, but 95s should be 800 to 1400 Ohms between the pins with connector off.

No I will be swapping the main harness with the ECU from the 460 in and putting in a sterling 10.25. There is no plug for the 4-wheel abs on the 460 main engine harness. it is located on the dash wiring and the rwabs module is behind the glove box on the dash wiring for the 250.. id perfer the reuse my broncos orinal dash harness but i need a way to read speed and mileage. Im thinking i can track down the wiring to the psom from the 4wabs module and jumper them to bypass the module?

Yo, ok

You can jump the PSOM wires at the 4wabs module.

4WABS Control Module Bypass for PSOM Operation due to Bad 4WABS Control Module; to feed the vss signal directly to the PSOM, jumper 14 (CKT 530, LG/Y)to 21 (CKT 519 (LG/BK) & 39 (CKT 491 (O/LB)to 22 (CKT 523, R/PK) by Turbo Ghost at http://smg.photobucket.com/user/turboghost/media/ABSConnectorw-jumpers.jpg.html

The module is located directly behind the driver's side headlight and uses a 10mm bolt to hold the connector in place. Loosen the bolt (it doesn't come out, just loosens) and pull the connector from the module. Then jump the pins as shown in the pic and place the connector in a safe position so the jumpers won't get knocked loose while driving. Make sure the connections are good and clean and the jumpers are firmly in place. Contact cleaner will help.

Speed Sensor Recalibrator Overview for other than Ford 8.8 Differentials; "...we have been working on this for a while and it is the nicest design I have worked with. You dont have to send your ****** out for a core and the sensor spacing is adjustable and it is mathmaticaly the same as stock. Im working out all of the math for common tire sizes and gear ratios. Final pricing will be available early next week. Let me know what you think and any queations you have. It comes with /100%.jpg of the parts you need and should very easy for most people to install. With original location for ford trucks, the sensor is essentially past or after the gears but before the tires if you think of the drivetrain in a straight line, so only tire size changes affect your speedo reading.When you move the tone ring (the little ring with the magnets) up to the output shaft, you put it before the gears, so now gears and tires will affect it. Factory setup:engine-transmission/tcase------gears(diff)tone ring----axles---tires; new setup: engine-transmission/tcase-tone ring------gears(diff)----axles---tires..."

Source: by mkiefer (Mark Kiefer)

Southwest Performance

858-449-2292

VSS Kit 92-96 Bronco E4OD And all other fords with BOLT ON yoke BW1356 transfer case

This is the kit you need to convert from the stock 8.8 to any aftermarket rearend. The kit allows your stock speedo to function properly and shift your E4OD Correctly.

$350 see pics

www.southwestperformance.net

Oh yeah I've seen that trick before. But I'm using the 460 harness to run the 460 so that plug is no longer in the engine bay. The dash wiring from the F-250 I bought has the two wheel drive ABS control module behind the glove box. I'm wondering if I can repin the 460 Dash harness with the Bronco rear window switch but I don't know if the fuel pump wiring is going to be different

Yo,

95 Bronco fuel system wiring diagrams @

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=2023

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=2036

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95 F 250 7.5 WIRING DIAGRAMS:

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=2025

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=2026

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=2037

Miesk5 as much as this may help me im completely illiterate when it comes to wiring.. im wondering if i should just swap all of the 250s wiring in and run a toggle switch to the rear window? What do you think is my best option miesk5?

Yo,

How about mounting window switch in a console or in coin holder?

Or if you have manual transfer case in cluster where I mounted pw switches?



I am using a tablet and no printer, so I can't get a good look and remember the differences in the wiring diagrams between both vehicles. I tried to jot down notes, but that doesnt work.

Print each diagram and take a look at flow from power distribution box **** fuse through to fuel pump. Then look at ignition switch through to starter. Think it will be same except for the 250s tank selector switch that needs to be jumped.

My biggest issue so far was my understanding of what harness you intend to use and what rear differential you are to use.

You can't use a toggle switch for the rear window, you will need to use the original switch due to the way the window circuit works.

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Well in terms of which harness i use.. it doesnt matter to me.. i just want everything done right. So i figured using the wiring from the f250 would be my best bet but like i said im not too good with wiring so i dont know if that really the beat option.i was plannimg on converting this 460 to mass air once i got it up and going and the cam broke in.. ill be using the sterling 10.25 from the f250 as well.. i plan to swap a d60 i already have into the front after this project is complete. A member on another forum Ford truck enthusiasts forum suggested that in i plan to convert it to mass air to just reuse and lengthen the wiring from my mass air 302 where needed.. he said the sensor and components are the same but i know for sure the tps is different. The 302 tps has a pig tail with a plug and the 460 tps has a plug in directly into the sensor and the 460 doesnt have a knock sensor either..

No matter which harness you use it will present some rewiring problems, but anything is possible.  I'd get an EVTM for each vehicle and that will make the conversion a little easier.  

http://www.ebay.com/sch/i.html?_odkw=1995+bronco+evtm&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X1995+ford+bronco+evtm.TRS0&_nkw=1995+ford+bronco+evtm&_sacat=0

http://www.ebay.com/sch/i.html?_odkw=1995+ford+bronco+evtm&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xford+f250+evtm.TRS0&_nkw=ford+f250+evtm&_sacat=0

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Yo,

Hopefully, we can draw a Flow Chart of the COMPONENTS in each vehicle, such as TPS, VSS, PSOM, Fuel Pump, PCM, etc.; the connectors, such as C101 and then compare the harness differences to make this easier to understand for people like me. We can go through the Bronco and 250 EVTM wiring diagrams, thus seeing the differences JUST IN THE WIRES AND their COLORS. Then you can annotate the connectors that are Different between both vehicles. MAY NEED TO RE-WORD THIS.. BAD HEADACHE MORNING...

Such as this VSS TO PSOM Flow Chart by Mikey350