Engine/Transmission (1998.5 - 2002) Anatomy of an APPS

[mhenon]

Looks like you have the Williams wiring correct above. The voltage adjustment needs to take place after you install the Williams sensor in the OEM bellcrank. Just back off on the idle stop screw until you get a suitably low voltage. I couldn't get mine to go lower than . 634 volts. As to how the wiring attaches to the sensor I now see the confusion there. There is a Weather Pack 6 pin connector from the harness into the sensor. This harness is about 2' long and has a 6 pin connector on one end and two 3 pin connectors on the other. The photo should clear that issue. You also asked why you need a jumper if you were to clip off the two weather packs and install a Deutsch connector. You don't... your way would work perfect. I'm going to make up a few jumpers so folks don't have to clip or fabricate anything. . but it can be done the way you describe.

Just to clarify the photo's. . they show the Williams sensor attached to the pedal assemby and the 6 pin weather pack unplugged from the sensor. The last photo is where the jumpr would go between the weather packs (2) and OEM connector. Hope this helps

Also I agree whole heartedly with the posts above about the experimental nature of what we're doing here. We're all beta testers and need to be sure this stuff stands the test of time.

Mike

I seem to have made a mistake in the above post. The 6 pin connector that plugs into the Williams APPS is not your garden variety 6 pin Weather Pack. At least not what I can find online or at the local NAPA auto parts. It looks like this is the correct harness: 130063 Wire Harness

If it. . is it will have the 6 pin connector on one end and the 2 Weather Packs on the other. Anyone who has ordered this harness might want to confirm if it's the right one or not. Aslo, does anyone know who makes that 6 pin connector. It sorta looks like a weather pack but I haven't located one as a stand alone purchase.

Mike

 

[timbo]

I seem to have made a mistake in the above post. The 6 pin connector that plugs into the Williams APPS is not your garden variety 6 pin Weather Pack. At least not what I can find online or at the local NAPA auto parts. It looks like this is the correct harness: 130063 Wire Harness

If it. . is it will have the 6 pin connector on one end and the 2 Weather Packs on the other. Anyone who has ordered this harness might want to confirm if it's the right one or not. Aslo, does anyone know who makes that 6 pin connector. It sorta looks like a weather pack but I haven't located one as a stand alone purchase.

Mike

Here is the connector Mike.



Casper's Electronics, Inc. : 6 way Metripack PTS 150. 2 Female

 

[mhenon]

You da man Timbo! Thanks.

 

[mhenon]

OK... Here's the near completed Williams WM 526 pedal assembly installed in the cab. The OEM pedal doesn't want to come apart without destroying some of it so once you start down this path it's all or nothing. Had a good test run and it ran just fine. It feels a little strange as you put your whole foot on the pedal instead of resting your heal on the floor like the OEM pedal. This is definitely not for everyone but I have no intention of ever selling this rig soo... ... It should address any heat related problems however as pedal and APPS are in the cab. Here's a few pic's of the beta test and finished assembly. First test's were done with the OEM pedal in place and the Williams laying on top doing all the smart work (electrical and otherwise). Last two pic's are sans OEM pedal.

Mike

 

[mhenon]

Oh. . the engine bay looks absolutely empty now. The list of things missing under there are; batteries, fuel filter, LP and now the whole OEM bellcrank and mount. Should keep the VP a little cooler too.

Mike

 

[rweis]

Mike - THAT IS TOTALLY AWESOME! Everything inside!



For the auto guys and speed control guys: The bracket without the MS mount plate on top of the riser piece. Numbers are mesurements length, notch cutout etc. Welding together in the next day or so.



Should fit ANY APPS bracket. Simply bolt it in with the 10mm mounting bolts at the front top and bottom holes.



Bob Weis

 

[Gary - K7GLD]

AHhhhhhh, ain't variety GREAT? :-laf:-laf



Here's where I am with my own "simplified", single module IVS approach - all this connects on the backside of the APPS bracket to the adaptor harness that "marries" this IVS module to the OEM APPS module mounted in normal fashion, and using only its potentiometer section:



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This is virtually ALL that is mounted on the front side of the APPS bracket.



As Bob and Timbo are doing, this setup is aimed to simplify the adaptation of the MS for the IVS function, while still using the pot section of an OEM APPS - and at the same time, allowing the APPS bracket to work with either auto or manual trannies.

 

[rweis]

My version of the MS bracket: Side view, Top view (paint is still a little wet), MS on MS top mounting plate (finger held, not screwed down yet, might take a washer shims for the roller to hit the bell crank EXACTELY in the middle of the roller). Bracket mounts to APPS bracket with front top & bottom 10mm bolts.



Material is 1/8" x 1" steel stock. I used 7" of it total. Welded the verticle riser to the bolt strap, welded the MS mounting plate to the verticle riser. You have to notch the verticle riser to accomodate for the bell crank spring step up casting. You have to notch the MS mounting plate to accomodate the idle stop screw bracket. All done with hand tools (hacksaw, drill, dremel) and a gas portable torch.



Bob Weis

 

[Gary - K7GLD]

Looks great Bob - nice clean and easy install!



OH, by the way, on these MS's, the black is common (ground), the BLUE is the idle side, and RED is off-idle side...

 

[Gary - K7GLD]

Another way to skin a cat! :-laf



Bob's idea and method of attaching the MS and it's bracket is real neat - but for guys without access to a welder, here's an alternate method to do the same thing - first, get one of these from your local hardware store or lumber yard:



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It's a common joint fixture for securing one support beam to another - it's about 6 inches X 6 inches, and easily thick and strong enough for what we're doing - yet easily worked with using a hammer, hacksaw and vise. No need to get REAL up tight about using super-heavy, thick steel - all the actual force to be applied to the MS, and the bracket, is what it takes to actuate the MS itself, and that is really pretty puny!



Here's what you want to end up with - or something similar:



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This piece is ready to go, after drilling mounting holes for whatever MS you choose to use - with my MS, it looks pretty much like this:



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All ready to go - about $4, and a half hours work...



Best of all, no cutting and welding of several small pieces!

 

[mhenon]

Two thumbs up!

Cummins & DC engineers ain't got nuttin on us!!! Nice work guys! Any TDR member that can't find an alternative to the OEM APPS isn't reading enough.

 

[Gary - K7GLD]

Cummins & DC engineers ain't got nuttin on us!!! Nice work guys! Any TDR member that can't find an alternative to the OEM APPS isn't reading enough.

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:-laf:-laf:-laf

 

[JAG1]

Gary and Bob you guys are too cool... ... you should have your own tv show. I absolutely think they could get top dollar advertisement ratings:-laf:-laf

 

[JLandry]

I seem to have made a mistake in the above post. The 6 pin connector that plugs into the Williams APPS is not your garden variety 6 pin Weather Pack. At least not what I can find online or at the local NAPA auto parts. It looks like this is the correct harness: 130063 Wire Harness

If it. . is it will have the 6 pin connector on one end and the 2 Weather Packs on the other. Anyone who has ordered this harness might want to confirm if it's the right one or not.

Mike,



If you want a wiring harness with 6 pins for an APPS with an integrated Idle Active Switch, then you DO NOT want Williams wiring harness 130063. That harness only has a 3 pin connector for an APPS without an Idle Active Switch.



I can confirm Williams wiring harness part number 131165 has a 6 pin connector which plugs into Williams APPS part number 131973... they're both sitting on my work bench awaiting testing in my truck.



Best regards,



John L.

 

[mhenon]

Mike,



If you want a wiring harness with 6 pins for an APPS with an integrated Idle Active Switch, then you DO NOT want Williams wiring harness 130063. That harness only has a 3 pin connector for an APPS without an Idle Active Switch.



I can confirm Williams wiring harness part number 131165 has a 6 pin connector which plugs into Williams APPS part number 131973... they're both sitting on my work bench awaiting testing in my truck.



Best regards,



John L.

John, Thanks for that info. The Williams web-page was a little confusing to me and I've never ordered from it. I'm glad you brought that to our attention.

Mike

 

[timbo]

Looks good guys !!! Here is my finished product also. Just plug it in.

 

[rweis]

Bracket finished, MS installed, total project wired in.



Bracket fitment check, Bracket with MS, installed into APPS frame.



The fit is very very close. The MS verticle spacer washer that ensures the MS roller rolls exactely on the bell crank had to have the washer spacer notched for the idle set screw frame to clear. The fittment is really good. The screw nyloc nuts had to be on top because there was no room for the nyloc nut on the bottom by the idle set screw frame. The idle set screw frame is the thing you have to be most concerned about when getting the MS positioned to roll the switch roller on the bell crank.



I left the WeatherHead connectors in since I had already converted the OEM APPS harness to WeatherHead connectors. I will use the MS IVS plug to the ECM IVS signals, with the Williams IVS plug as a backup. The Williams APPS is on a plug by itself which is connected to the ECM all the time.



I think with the VP44 blower blowing OAT into the APS pot pocket (with 3 vent holes in the top ofthe pocket), the MS to do the IVS, it is as good as it gets.



Bob Weis

 

[mhenon]

. . they're both sitting on my work bench awaiting testing in my truck.

John, Are you going to install the Williams APPS any time soon? I'ed like to know how it works for you. The more folks testing this stuff the better. Keep in touch.

mike

 

[mhenon]

Looks good guys !!! Here is my finished product also. Just plug it in.

That looks "Plug & Play" to me. I just recieved the Deutsch connectors. I'll make up a few jumper cables for folks buying the Williams Sensor kit pn 132034 (APPS + harness w/weather pack connctors). This will allow plug and play between that harness and OEM.

I don't know about the rest of you guys but I'm loosing track of all the ways to attack the APPS problem. We just went from one failure prone and exspensive OEM APPS to 4 or 5 relatively inexspensive alternatives.

Mike

 

[Gary - K7GLD]

Looks good guys !!! Here is my finished product also. Just plug it in.

Timbo is a great guy - but a lousy photographer! :-laf



Here's a cleaned-up pic of his excellent APPS, to show a bit more detail:



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